diff --git a/packages/opencode-config/package.json b/packages/opencode-config/package.json
index 61266886..82ed1e6d 100644
--- a/packages/opencode-config/package.json
+++ b/packages/opencode-config/package.json
@@ -4,6 +4,6 @@
   "private": true,
   "license": "MIT",
   "dependencies": {
-    "@opencode-ai/plugin": "1.2.24"
+    "@opencode-ai/plugin": "1.2.14"
   }
 }
\ No newline at end of file
diff --git a/packages/server/src/api-types.ts b/packages/server/src/api-types.ts
index c1fbefb3..8eb7c928 100644
--- a/packages/server/src/api-types.ts
+++ b/packages/server/src/api-types.ts
@@ -219,35 +219,12 @@ export interface SpeechCapabilitiesResponse {
   provider: string
   supportsStt: boolean
   supportsTts: boolean
-  supportsRealtimeTranscription?: boolean
-  realtimeInputFormat?: {
-    type: "audio/pcm"
-    rate: 24000
-  }
-  realtimeModel?: string
   baseUrl?: string
   sttModel: string
   ttsModel: string
   ttsVoice: string
 }
 
-export interface SpeechRealtimeSessionResponse {
-  sessionId: string
-  inputFormat: {
-    type: "audio/pcm"
-    rate: 24000
-  }
-}
-
-export type SpeechRealtimeEvent =
-  | { type: "session.ready"; sessionId: string }
-  | { type: "session.error"; message: string }
-  | { type: "input.speech_started"; itemId?: string }
-  | { type: "input.speech_stopped"; itemId?: string }
-  | { type: "transcript.partial"; itemId: string; text: string }
-  | { type: "transcript.final"; itemId: string; previousItemId?: string; text: string }
-  | { type: "session.closed"; reason?: string }
-
 export interface SpeechTranscriptionResponse {
   text: string
   language?: string
diff --git a/packages/server/src/server/http-server.ts b/packages/server/src/server/http-server.ts
index e8252e5b..3f558cb8 100644
--- a/packages/server/src/server/http-server.ts
+++ b/packages/server/src/server/http-server.ts
@@ -255,7 +255,7 @@ export function createHttpServer(deps: HttpServerDeps) {
     eventBus: deps.eventBus,
     workspaceManager: deps.workspaceManager,
   })
-  registerSpeechRoutes(app, { speechService: deps.speechService, logger: apiLogger })
+  registerSpeechRoutes(app, { speechService: deps.speechService })
   registerPluginRoutes(app, { workspaceManager: deps.workspaceManager, eventBus: deps.eventBus, logger: proxyLogger })
   registerBackgroundProcessRoutes(app, { backgroundProcessManager })
   registerInstanceProxyRoutes(app, { workspaceManager: deps.workspaceManager, logger: proxyLogger })
diff --git a/packages/server/src/server/routes/speech.ts b/packages/server/src/server/routes/speech.ts
index e9421092..3eab4ad6 100644
--- a/packages/server/src/server/routes/speech.ts
+++ b/packages/server/src/server/routes/speech.ts
@@ -1,12 +1,9 @@
 import type { FastifyInstance } from "fastify"
 import { z } from "zod"
 import type { SpeechService } from "../../speech/service"
-import type { Logger } from "../../logger"
-import { SpeechRealtimeSessionManager } from "../../speech/realtime-session-manager"
 
 interface RouteDeps {
   speechService: SpeechService
-  logger: Logger
 }
 
 const TranscribeBodySchema = z.object({
@@ -22,99 +19,9 @@ const SynthesizeBodySchema = z.object({
   format: z.enum(["mp3", "wav", "opus"]).optional(),
 })
 
-const RealtimeSessionBodySchema = z.object({
-  language: z.string().trim().min(1).optional(),
-  prompt: z.string().trim().min(1).optional(),
-})
-
-const RealtimeAudioBodySchema = z.object({
-  audioBase64: z.string().min(1, "Audio payload is required"),
-})
-
 export function registerSpeechRoutes(app: FastifyInstance, deps: RouteDeps) {
-  const realtimeSessions = new SpeechRealtimeSessionManager(
-    deps.speechService,
-    deps.logger.child({ component: "speech-realtime" }),
-  )
-
-  app.addHook("onClose", async () => {
-    await realtimeSessions.dispose()
-  })
-
   app.get("/api/speech/capabilities", async () => deps.speechService.getCapabilities())
 
-  app.post("/api/speech/realtime/sessions", async (request, reply) => {
-    try {
-      const body = RealtimeSessionBodySchema.parse(request.body ?? {})
-      return await realtimeSessions.createSession(body)
-    } catch (error) {
-      request.log.error({ err: error }, "Failed to create realtime speech session")
-      reply.code(400)
-      return { error: error instanceof Error ? error.message : "Failed to create realtime speech session" }
-    }
-  })
-
-  app.get<{ Params: { sessionId: string } }>("/api/speech/realtime/sessions/:sessionId/events", (request, reply) => {
-    try {
-      reply.raw.setHeader("Content-Type", "text/event-stream")
-      reply.raw.setHeader("Cache-Control", "no-cache")
-      reply.raw.setHeader("Connection", "keep-alive")
-      reply.raw.flushHeaders?.()
-      reply.hijack()
-
-      const unsubscribe = realtimeSessions.subscribe(request.params.sessionId, (event) => {
-        reply.raw.write(`data: ${JSON.stringify(event)}\n\n`)
-      })
-
-      const heartbeat = setInterval(() => {
-        reply.raw.write(`:hb ${Date.now()}\n\n`)
-      }, 15000)
-
-      const close = () => {
-        clearInterval(heartbeat)
-        unsubscribe()
-        reply.raw.end?.()
-      }
-
-      request.raw.on("close", close)
-      request.raw.on("error", close)
-    } catch (error) {
-      request.log.error({ err: error }, "Failed to open realtime speech event stream")
-      reply.code(404).send({ error: error instanceof Error ? error.message : "Realtime speech session not found" })
-    }
-  })
-
-  app.post<{ Params: { sessionId: string } }>("/api/speech/realtime/sessions/:sessionId/audio", async (request, reply) => {
-    try {
-      const body = RealtimeAudioBodySchema.parse(request.body ?? {})
-      realtimeSessions.appendAudio(request.params.sessionId, body.audioBase64)
-      reply.code(204)
-      return undefined
-    } catch (error) {
-      request.log.error({ err: error }, "Failed to append realtime speech audio")
-      reply.code(400)
-      return { error: error instanceof Error ? error.message : "Failed to append realtime speech audio" }
-    }
-  })
-
-  app.post<{ Params: { sessionId: string } }>("/api/speech/realtime/sessions/:sessionId/finalize", async (request, reply) => {
-    try {
-      realtimeSessions.finalize(request.params.sessionId)
-      reply.code(204)
-      return undefined
-    } catch (error) {
-      request.log.error({ err: error }, "Failed to finalize realtime speech session")
-      reply.code(400)
-      return { error: error instanceof Error ? error.message : "Failed to finalize realtime speech session" }
-    }
-  })
-
-  app.delete<{ Params: { sessionId: string } }>("/api/speech/realtime/sessions/:sessionId", async (request, reply) => {
-    realtimeSessions.closeSession(request.params.sessionId, "client_closed")
-    reply.code(204)
-    return undefined
-  })
-
   app.post("/api/speech/transcribe", async (request, reply) => {
     try {
       const body = TranscribeBodySchema.parse(request.body ?? {})
diff --git a/packages/server/src/speech/providers/openai-compatible.ts b/packages/server/src/speech/providers/openai-compatible.ts
index 436bfc36..4c426d72 100644
--- a/packages/server/src/speech/providers/openai-compatible.ts
+++ b/packages/server/src/speech/providers/openai-compatible.ts
@@ -20,13 +20,7 @@ export class OpenAICompatibleSpeechProvider {
       provider: settings.provider,
       supportsStt: true,
       supportsTts: true,
-      supportsRealtimeTranscription: true,
-      realtimeInputFormat: {
-        type: "audio/pcm" as const,
-        rate: 24000 as const,
-      },
       baseUrl: settings.baseUrl,
-      realtimeModel: settings.realtimeModel,
       sttModel: settings.sttModel,
       ttsModel: settings.ttsModel,
       ttsVoice: settings.ttsVoice,
diff --git a/packages/server/src/speech/realtime-session-manager.ts b/packages/server/src/speech/realtime-session-manager.ts
deleted file mode 100644
index 99aa395a..00000000
--- a/packages/server/src/speech/realtime-session-manager.ts
+++ /dev/null
@@ -1,525 +0,0 @@
-import { randomUUID } from "node:crypto"
-import { WebSocket } from "undici"
-import type { SpeechRealtimeEvent, SpeechRealtimeSessionResponse } from "../api-types"
-import type { Logger } from "../logger"
-import type { SpeechService } from "./service"
-
-interface CreateRealtimeSessionOptions {
-  language?: string
-  prompt?: string
-}
-
-interface TranscriptItemState {
-  previousItemId?: string
-  partialText: string
-  finalText?: string
-}
-
-interface ManagedRealtimeSession {
-  id: string
-  ws: WebSocket
-  subscribers: Set<(event: SpeechRealtimeEvent) => void>
-  items: Map<string, TranscriptItemState>
-  orderedItemIds: string[]
-  nextFinalIndex: number
-  createdAt: number
-  lastActivityAt: number
-  closed: boolean
-}
-
-const OPEN_TIMEOUT_MS = 10_000
-const IDLE_TIMEOUT_MS = 2 * 60 * 1000
-const SWEEP_INTERVAL_MS = 30_000
-
-export class SpeechRealtimeSessionManager {
-  private readonly sessions = new Map<string, ManagedRealtimeSession>()
-  private readonly sweepTimer: NodeJS.Timeout
-
-  constructor(
-    private readonly speechService: SpeechService,
-    private readonly logger: Logger,
-  ) {
-    this.sweepTimer = setInterval(() => {
-      this.sweepIdleSessions()
-    }, SWEEP_INTERVAL_MS)
-    this.sweepTimer.unref?.()
-  }
-
-  async createSession(options: CreateRealtimeSessionOptions = {}): Promise<SpeechRealtimeSessionResponse> {
-    const config = this.speechService.getRealtimeTranscriptionConfig()
-    const id = randomUUID()
-    const wsUrl = buildRealtimeWebSocketUrl(config.baseUrl, config.realtimeModel)
-    const sessionUpdateEvent = buildSessionUpdateEvent(config, options)
-    this.logger.info(
-      {
-        sessionId: id,
-        wsUrl,
-        realtimeModel: config.realtimeModel,
-        sttModel: config.sttModel,
-        payload: sessionUpdateEvent,
-      },
-      "Opening realtime speech websocket",
-    )
-    const ws = new WebSocket(wsUrl, {
-      headers: {
-        Authorization: `Bearer ${config.apiKey}`,
-        ...(requiresRealtimeBetaHeader(config.baseUrl) ? { "OpenAI-Beta": "realtime=v1" } : {}),
-      },
-    })
-
-    const session: ManagedRealtimeSession = {
-      id,
-      ws,
-      subscribers: new Set(),
-      items: new Map(),
-      orderedItemIds: [],
-      nextFinalIndex: 0,
-      createdAt: Date.now(),
-      lastActivityAt: Date.now(),
-      closed: false,
-    }
-
-    this.sessions.set(id, session)
-    this.attachSocketHandlers(session)
-
-    try {
-      await waitForSocketOpen(ws)
-      this.send(session, sessionUpdateEvent)
-      return {
-        sessionId: id,
-        inputFormat: config.inputFormat,
-      }
-    } catch (error) {
-      this.logger.error({ sessionId: id, err: error }, "Failed to create realtime speech session")
-      this.closeSession(id, error instanceof Error ? error.message : "Failed to create realtime speech session")
-      throw error
-    }
-  }
-
-  subscribe(sessionId: string, send: (event: SpeechRealtimeEvent) => void): () => void {
-    const session = this.getSession(sessionId)
-    if (!session) {
-      throw new Error("Realtime speech session not found")
-    }
-
-    session.subscribers.add(send)
-    this.touch(session)
-    send({ type: "session.ready", sessionId })
-
-    return () => {
-      session.subscribers.delete(send)
-      this.touch(session)
-    }
-  }
-
-  appendAudio(sessionId: string, audioBase64: string): void {
-    const session = this.requireSession(sessionId)
-    this.send(session, {
-      type: "input_audio_buffer.append",
-      audio: audioBase64,
-    })
-  }
-
-  finalize(sessionId: string): void {
-    const session = this.requireSession(sessionId)
-    this.send(session, {
-      type: "input_audio_buffer.commit",
-    })
-  }
-
-  closeSession(sessionId: string, reason?: string): void {
-    const session = this.sessions.get(sessionId)
-    if (!session || session.closed) return
-
-    session.closed = true
-    this.sessions.delete(sessionId)
-    this.emit(session, { type: "session.closed", reason })
-
-    try {
-      if (session.ws.readyState === WebSocket.OPEN || session.ws.readyState === WebSocket.CONNECTING) {
-        session.ws.close(1000, reason?.slice(0, 120) ?? "client_closed")
-      }
-    } catch (error) {
-      this.logger.warn({ sessionId, err: error }, "Failed to close realtime speech websocket")
-    }
-
-    session.subscribers.clear()
-  }
-
-  async dispose(): Promise<void> {
-    clearInterval(this.sweepTimer)
-    for (const sessionId of Array.from(this.sessions.keys())) {
-      this.closeSession(sessionId, "server_shutdown")
-    }
-  }
-
-  private attachSocketHandlers(session: ManagedRealtimeSession) {
-    session.ws.addEventListener("message", (event) => {
-      void this.handleSocketMessage(session, event.data)
-    })
-
-    session.ws.addEventListener("error", (event) => {
-      const message = event.error instanceof Error ? event.error.message : event.message || "Realtime speech connection failed"
-      this.logger.warn({ sessionId: session.id, err: event.error ?? event.message }, "Realtime speech websocket error")
-      this.emit(session, { type: "session.error", message })
-    })
-
-    session.ws.addEventListener("close", (event) => {
-      const reason = event.reason || (event.wasClean ? "socket_closed" : "socket_terminated")
-      this.logger.info(
-        {
-          sessionId: session.id,
-          code: event.code,
-          reason,
-          orderedItemIds: session.orderedItemIds,
-          pendingItems: Array.from(session.items.entries()).map(([itemId, item]) => ({
-            itemId,
-            previousItemId: item.previousItemId,
-            partialText: item.partialText,
-            finalText: item.finalText,
-          })),
-        },
-        "Realtime speech websocket closed",
-      )
-      this.closeSession(session.id, reason)
-    })
-  }
-
-  private async handleSocketMessage(session: ManagedRealtimeSession, raw: unknown) {
-    if (session.closed) return
-
-    try {
-      const payload = await toText(raw)
-      const event = JSON.parse(payload) as Record<string, unknown>
-      this.touch(session)
-      this.handleServerEvent(session, event)
-    } catch (error) {
-      this.logger.warn({ sessionId: session.id, err: error }, "Failed to process realtime speech event")
-    }
-  }
-
-  private handleServerEvent(session: ManagedRealtimeSession, event: Record<string, unknown>) {
-    const type = typeof event.type === "string" ? event.type : ""
-    if (!type) return
-
-    this.logger.debug({ sessionId: session.id, type }, "Realtime speech event received")
-    if (type.startsWith("conversation.item") || type.startsWith("input_audio_buffer") || type.startsWith("session.")) {
-      this.logger.debug({ sessionId: session.id, event }, "Realtime speech event payload")
-    }
-
-    if (type === "error") {
-      const message = extractErrorMessage(event)
-      this.logger.warn({ sessionId: session.id, event }, "Realtime speech provider error event")
-      this.emit(session, { type: "session.error", message })
-      return
-    }
-
-    if (type === "input_audio_buffer.speech_started") {
-      this.emit(session, {
-        type: "input.speech_started",
-        itemId: readString(event.item_id),
-      })
-      return
-    }
-
-    if (type === "input_audio_buffer.speech_stopped") {
-      this.emit(session, {
-        type: "input.speech_stopped",
-        itemId: readString(event.item_id),
-      })
-      return
-    }
-
-    if (type === "input_audio_buffer.committed") {
-      const itemId = readString(event.item_id)
-      if (!itemId) return
-      const item = this.getOrCreateItem(session, itemId)
-      item.previousItemId = readString(event.previous_item_id)
-      if (!session.orderedItemIds.includes(itemId)) {
-        session.orderedItemIds.push(itemId)
-      }
-      this.flushFinalizedItems(session)
-      return
-    }
-
-    if (type === "conversation.item.created" || type === "conversation.item.added" || type === "conversation.item.done") {
-      this.handleConversationItemEvent(session, event)
-      return
-    }
-
-    if (type === "conversation.item.input_audio_transcription.delta") {
-      const itemId = readString(event.item_id)
-      const delta = readString(event.delta)
-      if (!itemId || !delta) return
-      const item = this.getOrCreateItem(session, itemId)
-      item.partialText += delta
-      this.emit(session, {
-        type: "transcript.partial",
-        itemId,
-        text: item.partialText,
-      })
-      return
-    }
-
-    if (type === "conversation.item.input_audio_transcription.completed") {
-      const itemId = readString(event.item_id)
-      if (!itemId) return
-      const item = this.getOrCreateItem(session, itemId)
-      item.finalText = readString(event.transcript) ?? item.partialText
-      this.flushFinalizedItems(session)
-    }
-  }
-
-  private handleConversationItemEvent(session: ManagedRealtimeSession, event: Record<string, unknown>) {
-    const itemRecord = asRecord(event.item)
-    if (!itemRecord) return
-
-    const itemId = readString(itemRecord.id) ?? readString(event.item_id)
-    if (!itemId) return
-
-    const item = this.getOrCreateItem(session, itemId)
-    item.previousItemId = readString(event.previous_item_id) ?? item.previousItemId
-    if (!session.orderedItemIds.includes(itemId)) {
-      session.orderedItemIds.push(itemId)
-    }
-
-    const transcript = extractTranscriptFromConversationItem(itemRecord)
-    if (transcript) {
-      item.finalText = transcript
-      this.flushFinalizedItems(session)
-    }
-  }
-
-  private flushFinalizedItems(session: ManagedRealtimeSession) {
-    while (session.nextFinalIndex < session.orderedItemIds.length) {
-      const itemId = session.orderedItemIds[session.nextFinalIndex]
-      const item = session.items.get(itemId)
-      if (!item || item.finalText === undefined) {
-        return
-      }
-
-      this.emit(session, {
-        type: "transcript.final",
-        itemId,
-        previousItemId: item.previousItemId,
-        text: item.finalText,
-      })
-      session.nextFinalIndex += 1
-    }
-  }
-
-  private getOrCreateItem(session: ManagedRealtimeSession, itemId: string): TranscriptItemState {
-    const existing = session.items.get(itemId)
-    if (existing) return existing
-    const created: TranscriptItemState = { partialText: "" }
-    session.items.set(itemId, created)
-    return created
-  }
-
-  private emit(session: ManagedRealtimeSession, event: SpeechRealtimeEvent) {
-    for (const subscriber of session.subscribers) {
-      try {
-        subscriber(event)
-      } catch (error) {
-        this.logger.warn({ sessionId: session.id, err: error, type: event.type }, "Failed to emit realtime speech event")
-      }
-    }
-  }
-
-  private requireSession(sessionId: string): ManagedRealtimeSession {
-    const session = this.getSession(sessionId)
-    if (!session) {
-      throw new Error("Realtime speech session not found")
-    }
-    return session
-  }
-
-  private getSession(sessionId: string): ManagedRealtimeSession | null {
-    const session = this.sessions.get(sessionId) ?? null
-    if (!session || session.closed) return null
-    return session
-  }
-
-  private send(session: ManagedRealtimeSession, event: Record<string, unknown>) {
-    if (session.closed || session.ws.readyState !== WebSocket.OPEN) {
-      throw new Error("Realtime speech session is not connected")
-    }
-
-    session.ws.send(JSON.stringify(event))
-    this.touch(session)
-  }
-
-  private touch(session: ManagedRealtimeSession) {
-    session.lastActivityAt = Date.now()
-  }
-
-  private sweepIdleSessions() {
-    const now = Date.now()
-    for (const [sessionId, session] of this.sessions) {
-      if (session.closed) continue
-      if (now - session.lastActivityAt < IDLE_TIMEOUT_MS) continue
-      this.logger.info({ sessionId }, "Closing idle realtime speech session")
-      this.closeSession(sessionId, "idle_timeout")
-    }
-  }
-}
-
-function buildRealtimeWebSocketUrl(baseUrl: string | undefined, model: string): string {
-  const target = new URL(baseUrl?.trim() || "https://api.openai.com/v1")
-  target.protocol = target.protocol === "http:" ? "ws:" : "wss:"
-  const normalizedPath = target.pathname.replace(/\/+$/, "")
-  target.pathname = normalizedPath.endsWith("/realtime") ? normalizedPath : `${normalizedPath}/realtime`
-  target.hash = ""
-  if (!target.searchParams.has("model")) {
-    target.searchParams.set("model", model)
-  }
-  return target.toString()
-}
-
-function requiresRealtimeBetaHeader(baseUrl?: string): boolean {
-  if (!baseUrl || !baseUrl.trim()) return false
-  try {
-    return new URL(baseUrl).hostname.toLowerCase() !== "api.openai.com"
-  } catch {
-    return false
-  }
-}
-
-function buildSessionUpdateEvent(
-  config: { baseUrl?: string; sttModel: string; realtimeModel: string; inputFormat: { type: "audio/pcm"; rate: 24000 } },
-  options: CreateRealtimeSessionOptions,
-): Record<string, unknown> {
-  if (requiresRealtimeBetaHeader(config.baseUrl)) {
-    return {
-      type: "session.update",
-      session: {
-        input_audio_transcription: {
-          model: config.sttModel,
-          ...(options.language ? { language: options.language } : {}),
-          ...(options.prompt ? { prompt: options.prompt } : {}),
-        },
-        turn_detection: {
-          type: "server_vad",
-          threshold: 0.45,
-          prefix_padding_ms: 250,
-          silence_duration_ms: 400,
-        },
-      },
-    }
-  }
-
-  return {
-    type: "session.update",
-    session: {
-      type: "transcription",
-      audio: {
-        input: {
-          format: config.inputFormat,
-          noise_reduction: { type: "near_field" },
-          transcription: {
-            model: config.sttModel,
-            ...(options.language ? { language: options.language } : {}),
-            ...(options.prompt ? { prompt: options.prompt } : {}),
-          },
-          turn_detection: {
-            type: "server_vad",
-            threshold: 0.45,
-            prefix_padding_ms: 250,
-            silence_duration_ms: 400,
-          },
-        },
-      },
-    },
-  }
-}
-
-function waitForSocketOpen(ws: WebSocket): Promise<void> {
-  if (ws.readyState === WebSocket.OPEN) {
-    return Promise.resolve()
-  }
-
-  return new Promise((resolve, reject) => {
-    let settled = false
-    const timeout = setTimeout(() => {
-      cleanup()
-      reject(new Error("Timed out connecting to realtime speech provider"))
-    }, OPEN_TIMEOUT_MS)
-
-    const cleanup = () => {
-      clearTimeout(timeout)
-      ws.removeEventListener("open", handleOpen)
-      ws.removeEventListener("error", handleError)
-      ws.removeEventListener("close", handleClose)
-    }
-
-    const finish = (callback: () => void) => {
-      if (settled) return
-      settled = true
-      cleanup()
-      callback()
-    }
-
-    const handleOpen = () => {
-      finish(resolve)
-    }
-
-    const handleError = (event: { error?: unknown; message?: string }) => {
-      finish(() => reject(event.error instanceof Error ? event.error : new Error(event.message || "Failed to connect")))
-    }
-
-    const handleClose = () => {
-      finish(() => reject(new Error("Realtime speech connection closed before initialization")))
-    }
-
-    ws.addEventListener("open", handleOpen)
-    ws.addEventListener("error", handleError as any)
-    ws.addEventListener("close", handleClose)
-  })
-}
-
-async function toText(data: unknown): Promise<string> {
-  if (typeof data === "string") return data
-  if (data instanceof ArrayBuffer) return Buffer.from(data).toString("utf-8")
-  if (ArrayBuffer.isView(data)) return Buffer.from(data.buffer, data.byteOffset, data.byteLength).toString("utf-8")
-  if (typeof Blob !== "undefined" && data instanceof Blob) {
-    return Buffer.from(await data.arrayBuffer()).toString("utf-8")
-  }
-  return String(data ?? "")
-}
-
-function extractErrorMessage(event: Record<string, unknown>): string {
-  const error = event.error
-  if (error && typeof error === "object") {
-    const message = readString((error as Record<string, unknown>).message)
-    if (message) return message
-  }
-  return readString(event.message) ?? "Realtime speech request failed"
-}
-
-function readString(value: unknown): string | undefined {
-  return typeof value === "string" && value.length > 0 ? value : undefined
-}
-
-function asRecord(value: unknown): Record<string, unknown> | null {
-  return value && typeof value === "object" && !Array.isArray(value) ? (value as Record<string, unknown>) : null
-}
-
-function extractTranscriptFromConversationItem(item: Record<string, unknown>): string | undefined {
-  const directTranscript = readString(item.transcript) ?? readString(item.text)
-  if (directTranscript) return directTranscript
-
-  const content = Array.isArray(item.content) ? item.content : []
-  for (const part of content) {
-    const record = asRecord(part)
-    if (!record) continue
-    const transcript =
-      readString(record.transcript) ??
-      readString(record.text) ??
-      readString(asRecord(record.audio)?.transcript)
-    if (transcript) {
-      return transcript
-    }
-  }
-
-  return undefined
-}
diff --git a/packages/server/src/speech/service.ts b/packages/server/src/speech/service.ts
index 26cf6682..14f37a15 100644
--- a/packages/server/src/speech/service.ts
+++ b/packages/server/src/speech/service.ts
@@ -10,8 +10,6 @@ const ServerSpeechSettingsSchema = z.object({
       provider: z.string().optional(),
       apiKey: z.string().optional(),
       baseUrl: z.string().optional(),
-      useRealtime: z.boolean().optional(),
-      realtimeModel: z.string().optional(),
       sttModel: z.string().optional(),
       ttsModel: z.string().optional(),
       ttsVoice: z.string().optional(),
@@ -42,26 +40,12 @@ export interface NormalizedSpeechSettings {
   provider: string
   apiKey?: string
   baseUrl?: string
-  realtimeModel: string
   sttModel: string
   ttsModel: string
   ttsVoice: string
 }
 
-export interface RealtimeTranscriptionConfig {
-  provider: string
-  apiKey: string
-  baseUrl?: string
-  realtimeModel: string
-  sttModel: string
-  inputFormat: {
-    type: "audio/pcm"
-    rate: 24000
-  }
-}
-
 const DEFAULT_PROVIDER = "openai-compatible"
-const DEFAULT_REALTIME_MODEL = "gpt-realtime"
 const DEFAULT_STT_MODEL = "gpt-4o-mini-transcribe"
 const DEFAULT_TTS_MODEL = "gpt-4o-mini-tts"
 const DEFAULT_TTS_VOICE = "alloy"
@@ -83,25 +67,6 @@ export class SpeechService {
     return this.createProvider().synthesize(input)
   }
 
-  getRealtimeTranscriptionConfig(): RealtimeTranscriptionConfig {
-    const settings = this.resolveSettings()
-    if (!settings.apiKey) {
-      throw new Error("Speech provider is not configured. Add an API key in Speech settings.")
-    }
-
-    return {
-      provider: settings.provider,
-      apiKey: settings.apiKey,
-      baseUrl: settings.baseUrl,
-      realtimeModel: settings.realtimeModel,
-      sttModel: settings.sttModel,
-      inputFormat: {
-        type: "audio/pcm",
-        rate: 24000,
-      },
-    }
-  }
-
   private createProvider(): SpeechProvider {
     const settings = this.resolveSettings()
     return new OpenAICompatibleSpeechProvider({
@@ -118,7 +83,6 @@ export class SpeechService {
       provider: speech.provider?.trim() || DEFAULT_PROVIDER,
       apiKey: speech.apiKey?.trim() || process.env.OPENAI_API_KEY,
       baseUrl: speech.baseUrl?.trim() || process.env.OPENAI_BASE_URL || undefined,
-      realtimeModel: speech.realtimeModel?.trim() || DEFAULT_REALTIME_MODEL,
       sttModel: speech.sttModel?.trim() || DEFAULT_STT_MODEL,
       ttsModel: speech.ttsModel?.trim() || DEFAULT_TTS_MODEL,
       ttsVoice: speech.ttsVoice?.trim() || DEFAULT_TTS_VOICE,
diff --git a/packages/ui/src/components/prompt-input.tsx b/packages/ui/src/components/prompt-input.tsx
index 45db8b44..1ae41690 100644
--- a/packages/ui/src/components/prompt-input.tsx
+++ b/packages/ui/src/components/prompt-input.tsx
@@ -11,7 +11,7 @@ import { getCommands } from "../stores/commands"
 import { showAlertDialog } from "../stores/alerts"
 import { useI18n } from "../lib/i18n"
 import { getLogger } from "../lib/logger"
-import { preferences, useConfig } from "../stores/preferences"
+import { preferences } from "../stores/preferences"
 import type { ExpandState, PromptInputApi, PromptInputProps, PromptInsertMode, PromptMode } from "./prompt-input/types"
 import { usePromptState } from "./prompt-input/usePromptState"
 import { usePromptAttachments } from "./prompt-input/usePromptAttachments"
@@ -22,7 +22,6 @@ const log = getLogger("actions")
 
 export default function PromptInput(props: PromptInputProps) {
   const { t } = useI18n()
-  const { serverSettings } = useConfig()
   const [, setIsFocused] = createSignal(false)
   const [mode, setMode] = createSignal<PromptMode>("normal")
   const [expandState, setExpandState] = createSignal<ExpandState>("normal")
@@ -419,7 +418,6 @@ export default function PromptInput(props: PromptInputProps) {
     getTextarea: () => textareaRef ?? null,
     enabled: () => preferences().showPromptVoiceInput,
     disabled: () => Boolean(props.disabled),
-    useRealtime: () => serverSettings().speech.useRealtime,
   })
   const showVoiceInput = () =>
     preferences().showPromptVoiceInput &&
diff --git a/packages/ui/src/components/prompt-input/createRealtimePcmStream.ts b/packages/ui/src/components/prompt-input/createRealtimePcmStream.ts
deleted file mode 100644
index 7d3cea34..00000000
--- a/packages/ui/src/components/prompt-input/createRealtimePcmStream.ts
+++ /dev/null
@@ -1,110 +0,0 @@
-export interface RealtimePcmStreamHandle {
-  stop(): Promise<void>
-}
-
-interface CreateRealtimePcmStreamOptions {
-  onChunk: (audioBase64: string) => void | Promise<void>
-}
-
-const TARGET_SAMPLE_RATE = 24000
-const PROCESSOR_BUFFER_SIZE = 4096
-
-export async function createRealtimePcmStream(
-  options: CreateRealtimePcmStreamOptions,
-): Promise<RealtimePcmStreamHandle> {
-  const stream = await navigator.mediaDevices.getUserMedia({
-    audio: {
-      channelCount: 1,
-      echoCancellation: true,
-      noiseSuppression: true,
-      autoGainControl: true,
-    },
-  })
-
-  const AudioContextCtor = window.AudioContext || (window as any).webkitAudioContext
-  if (!AudioContextCtor) {
-    stream.getTracks().forEach((track) => track.stop())
-    throw new Error("AudioContext is not supported in this browser.")
-  }
-
-  const audioContext = new AudioContextCtor()
-  await audioContext.resume()
-
-  const source = audioContext.createMediaStreamSource(stream)
-  const processor = audioContext.createScriptProcessor(PROCESSOR_BUFFER_SIZE, 1, 1)
-  const sink = audioContext.createGain()
-  sink.gain.value = 0
-
-  source.connect(processor)
-  processor.connect(sink)
-  sink.connect(audioContext.destination)
-
-  processor.onaudioprocess = (event) => {
-    const input = event.inputBuffer.getChannelData(0)
-    const resampled = downsampleBuffer(input, audioContext.sampleRate, TARGET_SAMPLE_RATE)
-    if (resampled.length === 0) return
-    const pcm16 = floatTo16BitPcm(resampled)
-    void options.onChunk(base64EncodePcm16(pcm16))
-  }
-
-  let stopped = false
-  return {
-    async stop() {
-      if (stopped) return
-      stopped = true
-      processor.onaudioprocess = null
-      source.disconnect()
-      processor.disconnect()
-      sink.disconnect()
-      stream.getTracks().forEach((track) => track.stop())
-      await audioContext.close()
-    },
-  }
-}
-
-function downsampleBuffer(buffer: Float32Array, inputSampleRate: number, outputSampleRate: number): Float32Array {
-  if (inputSampleRate === outputSampleRate) {
-    return buffer.slice()
-  }
-
-  const sampleRateRatio = inputSampleRate / outputSampleRate
-  const outputLength = Math.max(1, Math.round(buffer.length / sampleRateRatio))
-  const output = new Float32Array(outputLength)
-  let outputIndex = 0
-  let inputIndex = 0
-
-  while (outputIndex < outputLength) {
-    const nextInputIndex = Math.min(buffer.length, Math.round((outputIndex + 1) * sampleRateRatio))
-    let sum = 0
-    let count = 0
-    for (let i = inputIndex; i < nextInputIndex; i += 1) {
-      sum += buffer[i]
-      count += 1
-    }
-    output[outputIndex] = count > 0 ? sum / count : buffer[Math.min(buffer.length - 1, inputIndex)]
-    outputIndex += 1
-    inputIndex = nextInputIndex
-  }
-
-  return output
-}
-
-function floatTo16BitPcm(buffer: Float32Array): Int16Array {
-  const pcm16 = new Int16Array(buffer.length)
-  for (let i = 0; i < buffer.length; i += 1) {
-    const sample = Math.max(-1, Math.min(1, buffer[i]))
-    pcm16[i] = sample < 0 ? Math.round(sample * 0x8000) : Math.round(sample * 0x7fff)
-  }
-  return pcm16
-}
-
-function base64EncodePcm16(buffer: Int16Array): string {
-  const bytes = new Uint8Array(buffer.buffer)
-  let binary = ""
-  const chunkSize = 0x8000
-  for (let offset = 0; offset < bytes.length; offset += chunkSize) {
-    const chunk = bytes.subarray(offset, offset + chunkSize)
-    binary += String.fromCharCode(...chunk)
-  }
-  return btoa(binary)
-}
diff --git a/packages/ui/src/components/prompt-input/promptVoiceInsertion.ts b/packages/ui/src/components/prompt-input/promptVoiceInsertion.ts
deleted file mode 100644
index 3fcc8e78..00000000
--- a/packages/ui/src/components/prompt-input/promptVoiceInsertion.ts
+++ /dev/null
@@ -1,36 +0,0 @@
-export interface PromptVoiceAnchor {
-  prompt: string
-  start: number
-  end: number
-}
-
-export function createPromptVoiceAnchor(prompt: string, start: number, end: number): PromptVoiceAnchor {
-  return { prompt, start, end }
-}
-
-export function buildPromptWithInsertedTranscript(anchor: PromptVoiceAnchor, insertedText: string): { value: string; cursor: number } {
-  const before = anchor.prompt.slice(0, anchor.start)
-  const after = anchor.prompt.slice(anchor.end)
-  const normalized = insertedText.trim()
-
-  if (!normalized) {
-    return {
-      value: before + after,
-      cursor: before.length,
-    }
-  }
-
-  const prefix = before.length > 0 && !/\s$/.test(before) ? " " : ""
-  const suffix = after.length > 0 && !/^\s/.test(after) ? " " : ""
-  return {
-    value: `${before}${prefix}${normalized}${suffix}${after}`,
-    cursor: before.length + prefix.length + normalized.length,
-  }
-}
-
-export function appendVoiceTranscript(current: string, next: string): string {
-  const normalized = next.trim()
-  if (!normalized) return current
-  if (!current.trim()) return normalized
-  return /\s$/.test(current) ? `${current}${normalized}` : `${current} ${normalized}`
-}
diff --git a/packages/ui/src/components/prompt-input/usePromptBufferedVoiceInput.ts b/packages/ui/src/components/prompt-input/usePromptBufferedVoiceInput.ts
deleted file mode 100644
index 51f6e5cf..00000000
--- a/packages/ui/src/components/prompt-input/usePromptBufferedVoiceInput.ts
+++ /dev/null
@@ -1,241 +0,0 @@
-import { createEffect, createSignal, onCleanup, type Accessor } from "solid-js"
-import { showAlertDialog } from "../../stores/alerts"
-import { loadSpeechCapabilities, speechCapabilities } from "../../stores/speech"
-import { serverApi } from "../../lib/api-client"
-import { useI18n } from "../../lib/i18n"
-import { createPromptVoiceAnchor, buildPromptWithInsertedTranscript } from "./promptVoiceInsertion"
-
-interface UsePromptBufferedVoiceInputOptions {
-  prompt: Accessor<string>
-  setPrompt: (value: string, options?: { persistDraft?: boolean }) => void
-  getTextarea: () => HTMLTextAreaElement | null
-  enabled: Accessor<boolean>
-  disabled: Accessor<boolean>
-}
-
-type VoiceInputState = "idle" | "recording" | "transcribing"
-
-export function usePromptBufferedVoiceInput(options: UsePromptBufferedVoiceInputOptions) {
-  const { t } = useI18n()
-  const [state, setState] = createSignal<VoiceInputState>("idle")
-  const [elapsedMs, setElapsedMs] = createSignal(0)
-
-  let mediaRecorder: MediaRecorder | null = null
-  let mediaStream: MediaStream | null = null
-  let timerId: number | undefined
-  let shouldTranscribe = true
-  let recordedChunks: Blob[] = []
-  let recordingStartedAt = 0
-
-  createEffect(() => {
-    void loadSpeechCapabilities()
-  })
-
-  onCleanup(() => {
-    cleanupMedia(false)
-  })
-
-  const isSupported = () => {
-    if (typeof window === "undefined") return false
-    return typeof window.MediaRecorder !== "undefined" && Boolean(navigator.mediaDevices?.getUserMedia)
-  }
-
-  const canUseVoiceInput = () => {
-    const capabilities = speechCapabilities()
-    return Boolean(
-      options.enabled() &&
-        isSupported() &&
-        capabilities?.available &&
-        capabilities?.configured &&
-        capabilities?.supportsStt,
-    )
-  }
-
-  async function toggleRecording(): Promise<void> {
-    if (state() === "recording") {
-      stopRecording()
-      return
-    }
-
-    if (!canUseVoiceInput() || options.disabled() || state() === "transcribing") return
-
-    try {
-      await startRecording()
-    } catch (error) {
-      cleanupMedia(false)
-      showAlertDialog(t("promptInput.voiceInput.error.permission"), {
-        title: t("promptInput.voiceInput.error.title"),
-        detail: error instanceof Error ? error.message : String(error),
-        variant: "error",
-      })
-    }
-  }
-
-  function stopRecording() {
-    if (!mediaRecorder || state() !== "recording") return
-    shouldTranscribe = true
-    mediaRecorder.stop()
-    setState("transcribing")
-    stopTimer()
-  }
-
-  function cancelRecording() {
-    if (!mediaRecorder || state() !== "recording") return
-    shouldTranscribe = false
-    mediaRecorder.stop()
-    cleanupMedia(false)
-  }
-
-  async function startRecording() {
-    if (!isSupported()) {
-      showAlertDialog(t("promptInput.voiceInput.error.unsupported"), {
-        title: t("promptInput.voiceInput.error.title"),
-        variant: "error",
-      })
-      return
-    }
-
-    recordedChunks = []
-    shouldTranscribe = true
-    mediaStream = await navigator.mediaDevices.getUserMedia({ audio: true })
-    mediaRecorder = createRecorder(mediaStream)
-
-    mediaRecorder.addEventListener("dataavailable", (event) => {
-      if (event.data.size > 0) {
-        recordedChunks.push(event.data)
-      }
-    })
-
-    mediaRecorder.addEventListener("stop", () => {
-      void finalizeRecording()
-    })
-
-    recordingStartedAt = Date.now()
-    setElapsedMs(0)
-    setState("recording")
-    startTimer()
-    mediaRecorder.start()
-  }
-
-  async function finalizeRecording() {
-    const recorder = mediaRecorder
-    const stream = mediaStream
-    mediaRecorder = null
-    mediaStream = null
-
-    if (!shouldTranscribe || recordedChunks.length === 0) {
-      recordedChunks = []
-      stopTracks(stream)
-      setState("idle")
-      setElapsedMs(0)
-      return
-    }
-
-    const mimeType = recorder?.mimeType || recordedChunks[0]?.type || "audio/webm"
-
-    try {
-      const audioBlob = new Blob(recordedChunks, { type: mimeType })
-      const transcription = await serverApi.transcribeAudio({
-        audioBase64: await blobToBase64(audioBlob),
-        mimeType,
-      })
-      if (transcription.text.trim()) {
-        insertTranscript(transcription.text.trim())
-      }
-    } catch (error) {
-      showAlertDialog(t("promptInput.voiceInput.error.transcribe"), {
-        title: t("promptInput.voiceInput.error.title"),
-        detail: error instanceof Error ? error.message : String(error),
-        variant: "error",
-      })
-    } finally {
-      recordedChunks = []
-      stopTracks(stream)
-      setState("idle")
-      setElapsedMs(0)
-    }
-  }
-
-  function insertTranscript(text: string) {
-    const current = options.prompt()
-    const textarea = options.getTextarea()
-    const start = textarea ? textarea.selectionStart : current.length
-    const end = textarea ? textarea.selectionEnd : current.length
-    const { value, cursor } = buildPromptWithInsertedTranscript(
-      createPromptVoiceAnchor(current, start, end),
-      text,
-    )
-
-    options.setPrompt(value)
-    if (textarea) {
-      setTimeout(() => {
-        textarea.focus()
-        textarea.setSelectionRange(cursor, cursor)
-      }, 0)
-    }
-  }
-
-  function cleanupMedia(resetState = true) {
-    stopTimer()
-    if (mediaRecorder && mediaRecorder.state !== "inactive") {
-      mediaRecorder.stop()
-    }
-    mediaRecorder = null
-    stopTracks(mediaStream)
-    mediaStream = null
-    recordedChunks = []
-    if (resetState) {
-      setState("idle")
-      setElapsedMs(0)
-    }
-  }
-
-  function startTimer() {
-    stopTimer()
-    timerId = window.setInterval(() => {
-      setElapsedMs(Date.now() - recordingStartedAt)
-    }, 250)
-  }
-
-  function stopTimer() {
-    if (timerId !== undefined) {
-      window.clearInterval(timerId)
-      timerId = undefined
-    }
-  }
-
-  return {
-    state,
-    elapsedMs,
-    canUseVoiceInput,
-    toggleRecording,
-    cancelRecording,
-    isRecording: () => state() === "recording",
-    isTranscribing: () => state() === "transcribing",
-    buttonTitle: () => {
-      if (state() === "recording") return t("promptInput.voiceInput.stop.title")
-      if (state() === "transcribing") return t("promptInput.voiceInput.transcribing.title")
-      return t("promptInput.voiceInput.start.title")
-    },
-  }
-}
-
-function createRecorder(stream: MediaStream): MediaRecorder {
-  const candidates = ["audio/webm;codecs=opus", "audio/webm", "audio/mp4", "audio/ogg;codecs=opus"]
-  const supported = candidates.find((candidate) => typeof MediaRecorder.isTypeSupported !== "function" || MediaRecorder.isTypeSupported(candidate))
-  return supported ? new MediaRecorder(stream, { mimeType: supported }) : new MediaRecorder(stream)
-}
-
-function stopTracks(stream: MediaStream | null) {
-  stream?.getTracks().forEach((track) => track.stop())
-}
-
-async function blobToBase64(blob: Blob): Promise<string> {
-  const buffer = await blob.arrayBuffer()
-  const bytes = new Uint8Array(buffer)
-  let binary = ""
-  for (const byte of bytes) {
-    binary += String.fromCharCode(byte)
-  }
-  return btoa(binary)
-}
diff --git a/packages/ui/src/components/prompt-input/usePromptRealtimeVoiceInput.ts b/packages/ui/src/components/prompt-input/usePromptRealtimeVoiceInput.ts
deleted file mode 100644
index 186ec3b7..00000000
--- a/packages/ui/src/components/prompt-input/usePromptRealtimeVoiceInput.ts
+++ /dev/null
@@ -1,325 +0,0 @@
-import { createEffect, createSignal, onCleanup, type Accessor } from "solid-js"
-import { showAlertDialog } from "../../stores/alerts"
-import { serverApi, type SpeechRealtimeEvent } from "../../lib/api-client"
-import { useI18n } from "../../lib/i18n"
-import { loadSpeechCapabilities, speechCapabilities } from "../../stores/speech"
-import { createRealtimePcmStream, type RealtimePcmStreamHandle } from "./createRealtimePcmStream"
-import { appendVoiceTranscript, buildPromptWithInsertedTranscript, createPromptVoiceAnchor } from "./promptVoiceInsertion"
-
-interface UsePromptRealtimeVoiceInputOptions {
-  prompt: Accessor<string>
-  setPrompt: (value: string, options?: { persistDraft?: boolean }) => void
-  getTextarea: () => HTMLTextAreaElement | null
-  enabled: Accessor<boolean>
-  disabled: Accessor<boolean>
-}
-
-type RealtimeVoiceState = "idle" | "connecting" | "listening" | "finalizing"
-
-const FINAL_TRANSCRIPT_TIMEOUT_MS = 10000
-
-export function usePromptRealtimeVoiceInput(options: UsePromptRealtimeVoiceInputOptions) {
-  const { t } = useI18n()
-  const [state, setState] = createSignal<RealtimeVoiceState>("idle")
-  const [elapsedMs, setElapsedMs] = createSignal(0)
-
-  let activeSessionId: string | null = null
-  let eventSource: EventSource | null = null
-  let pcmStream: RealtimePcmStreamHandle | null = null
-  let audioQueue: Promise<void> = Promise.resolve()
-  let timerId: number | undefined
-  let recordingStartedAt = 0
-  let finalizeTimerId: number | undefined
-  let anchor = createPromptVoiceAnchor("", 0, 0)
-  let finalTranscript = ""
-  let liveTranscript = ""
-  let activeLiveItemId: string | null = null
-  let closing = false
-
-  createEffect(() => {
-    void loadSpeechCapabilities()
-  })
-
-  onCleanup(() => {
-    cancelRecording()
-  })
-
-  const isSupported = () => {
-    if (typeof window === "undefined") return false
-    return Boolean(window.AudioContext || (window as any).webkitAudioContext) && Boolean(navigator.mediaDevices?.getUserMedia) && typeof EventSource !== "undefined"
-  }
-
-  const canUseVoiceInput = () => {
-    const capabilities = speechCapabilities()
-    return Boolean(
-      options.enabled() &&
-        isSupported() &&
-        capabilities?.available &&
-        capabilities?.configured &&
-        capabilities?.supportsStt &&
-        capabilities?.supportsRealtimeTranscription,
-    )
-  }
-
-  async function toggleRecording(): Promise<void> {
-    if (state() === "listening" || state() === "connecting") {
-      await stopRecording()
-      return
-    }
-
-    if (!canUseVoiceInput() || options.disabled() || state() === "finalizing") return
-
-    try {
-      await startRecording()
-    } catch (error) {
-      await cleanupSession({ revertPrompt: true, closeRemote: true })
-      showAlertDialog(t("promptInput.voiceInput.error.connection"), {
-        title: t("promptInput.voiceInput.error.title"),
-        detail: error instanceof Error ? error.message : String(error),
-        variant: "error",
-      })
-    }
-  }
-
-  async function startRecording() {
-    if (!isSupported()) {
-      showAlertDialog(t("promptInput.voiceInput.error.unsupported"), {
-        title: t("promptInput.voiceInput.error.title"),
-        variant: "error",
-      })
-      return
-    }
-
-    resetTranscriptState()
-    captureAnchor()
-    setState("connecting")
-    setElapsedMs(0)
-
-    const created = await serverApi.createRealtimeSpeechSession({
-      language: detectLanguage(),
-    })
-    activeSessionId = created.sessionId
-    connectEventStream(created.sessionId)
-
-    pcmStream = await createRealtimePcmStream({
-      onChunk: (audioBase64) => {
-        const sessionId = activeSessionId
-        if (!sessionId || closing) return
-        audioQueue = audioQueue
-          .then(() => serverApi.appendRealtimeSpeechAudio(sessionId, { audioBase64 }))
-          .catch((error) => {
-            handleRealtimeError(error)
-          })
-      },
-    })
-
-    recordingStartedAt = Date.now()
-    startTimer()
-    setState("listening")
-  }
-
-  async function stopRecording() {
-    const sessionId = activeSessionId
-    if (!sessionId || (state() !== "listening" && state() !== "connecting")) return
-
-    setState("finalizing")
-    stopTimer()
-
-    if (pcmStream) {
-      const stream = pcmStream
-      pcmStream = null
-      await stream.stop()
-    }
-
-    try {
-      await audioQueue.catch(() => undefined)
-      await serverApi.finalizeRealtimeSpeechSession(sessionId)
-      scheduleFinalizeClose(FINAL_TRANSCRIPT_TIMEOUT_MS)
-    } catch (error) {
-      handleRealtimeError(error)
-    }
-  }
-
-  function cancelRecording() {
-    void cleanupSession({ revertPrompt: true, closeRemote: true })
-  }
-
-  function connectEventStream(sessionId: string) {
-    eventSource?.close()
-    eventSource = serverApi.connectRealtimeSpeechEvents(
-      sessionId,
-      (event) => handleEvent(event),
-      () => {
-        if (closing) return
-        handleRealtimeError(new Error(t("promptInput.voiceInput.error.connection")))
-      },
-    )
-  }
-
-  function handleEvent(event: SpeechRealtimeEvent) {
-    if (event.type === "session.ready") {
-      return
-    }
-
-    if (event.type === "session.error") {
-      handleRealtimeError(new Error(event.message))
-      return
-    }
-
-    if (event.type === "transcript.partial") {
-      activeLiveItemId = event.itemId
-      liveTranscript = event.text
-      renderPrompt(false)
-      return
-    }
-
-    if (event.type === "transcript.final") {
-      activeLiveItemId = activeLiveItemId === event.itemId ? null : activeLiveItemId
-      liveTranscript = ""
-      finalTranscript = appendVoiceTranscript(finalTranscript, event.text)
-      renderPrompt(true)
-      if (state() === "finalizing") {
-        scheduleFinalizeClose(250)
-      }
-      return
-    }
-
-    if (event.type === "session.closed") {
-      void cleanupSession({ revertPrompt: false, closeRemote: false })
-    }
-  }
-
-  function captureAnchor() {
-    const textarea = options.getTextarea()
-    const current = options.prompt()
-    const start = textarea ? textarea.selectionStart : current.length
-    const end = textarea ? textarea.selectionEnd : current.length
-    anchor = createPromptVoiceAnchor(current, start, end)
-  }
-
-  function renderPrompt(persistDraft: boolean) {
-    const inserted = [finalTranscript, liveTranscript.trim()].filter(Boolean).join(finalTranscript && liveTranscript.trim() ? " " : "")
-    const { value, cursor } = buildPromptWithInsertedTranscript(anchor, inserted)
-    options.setPrompt(value, persistDraft ? undefined : { persistDraft: false })
-    syncTextareaCursor(cursor)
-  }
-
-  function syncTextareaCursor(cursor: number) {
-    const textarea = options.getTextarea()
-    if (!textarea) return
-    queueMicrotask(() => {
-      const next = options.getTextarea()
-      if (!next) return
-      next.focus()
-      next.setSelectionRange(cursor, cursor)
-    })
-  }
-
-  function scheduleFinalizeClose(delayMs: number) {
-    if (finalizeTimerId !== undefined) {
-      window.clearTimeout(finalizeTimerId)
-    }
-    finalizeTimerId = window.setTimeout(() => {
-      void cleanupSession({ revertPrompt: false, closeRemote: true })
-    }, delayMs)
-  }
-
-  async function cleanupSession(cleanupOptions: { revertPrompt: boolean; closeRemote: boolean }) {
-    if (closing) return
-    closing = true
-
-    if (finalizeTimerId !== undefined) {
-      window.clearTimeout(finalizeTimerId)
-      finalizeTimerId = undefined
-    }
-
-    stopTimer()
-
-    const sessionId = activeSessionId
-    activeSessionId = null
-
-    eventSource?.close()
-    eventSource = null
-
-    if (pcmStream) {
-      const stream = pcmStream
-      pcmStream = null
-      await stream.stop().catch(() => undefined)
-    }
-
-    await audioQueue.catch(() => undefined)
-    audioQueue = Promise.resolve()
-
-    if (cleanupOptions.closeRemote && sessionId) {
-      await serverApi.closeRealtimeSpeechSession(sessionId).catch(() => undefined)
-    }
-
-    if (!cleanupOptions.revertPrompt && !finalTranscript.trim() && liveTranscript.trim()) {
-      finalTranscript = appendVoiceTranscript(finalTranscript, liveTranscript)
-      liveTranscript = ""
-    }
-
-    if (cleanupOptions.revertPrompt) {
-      options.setPrompt(anchor.prompt)
-    } else if (finalTranscript.trim()) {
-      renderPrompt(true)
-    }
-
-    resetTranscriptState()
-    setState("idle")
-    setElapsedMs(0)
-    closing = false
-  }
-
-  function resetTranscriptState() {
-    finalTranscript = ""
-    liveTranscript = ""
-    activeLiveItemId = null
-  }
-
-  function handleRealtimeError(error: unknown) {
-    if (closing) return
-    void cleanupSession({ revertPrompt: true, closeRemote: true })
-    showAlertDialog(t("promptInput.voiceInput.error.connection"), {
-      title: t("promptInput.voiceInput.error.title"),
-      detail: error instanceof Error ? error.message : String(error),
-      variant: "error",
-    })
-  }
-
-  function startTimer() {
-    stopTimer()
-    timerId = window.setInterval(() => {
-      setElapsedMs(Date.now() - recordingStartedAt)
-    }, 250)
-  }
-
-  function stopTimer() {
-    if (timerId !== undefined) {
-      window.clearInterval(timerId)
-      timerId = undefined
-    }
-  }
-
-  return {
-    state,
-    elapsedMs,
-    canUseVoiceInput,
-    toggleRecording,
-    cancelRecording,
-    isRecording: () => state() === "connecting" || state() === "listening",
-    isTranscribing: () => state() === "finalizing",
-    buttonTitle: () => {
-      if (state() === "connecting") return t("promptInput.voiceInput.connecting.title")
-      if (state() === "listening") return t("promptInput.voiceInput.stop.title")
-      if (state() === "finalizing") return t("promptInput.voiceInput.transcribing.title")
-      return t("promptInput.voiceInput.start.title")
-    },
-  }
-}
-
-function detectLanguage(): string | undefined {
-  if (typeof navigator === "undefined") return undefined
-  const [language] = navigator.language.split("-")
-  return language?.trim() || undefined
-}
diff --git a/packages/ui/src/components/prompt-input/usePromptState.ts b/packages/ui/src/components/prompt-input/usePromptState.ts
index a2e252a4..3b326f2c 100644
--- a/packages/ui/src/components/prompt-input/usePromptState.ts
+++ b/packages/ui/src/components/prompt-input/usePromptState.ts
@@ -22,7 +22,7 @@ type HistorySelectOptions = {
 
 type PromptState = {
   prompt: Accessor<string>
-  setPrompt: (value: string, options?: { persistDraft?: boolean }) => void
+  setPrompt: (value: string) => void
   clearPrompt: () => void
 
   draftLoadedNonce: Accessor<number>
@@ -48,11 +48,11 @@ export function usePromptState(options: PromptStateOptions): PromptState {
   const [historyDraft, setHistoryDraft] = createSignal<string | null>(null)
   const [draftLoadedNonce, setDraftLoadedNonce] = createSignal(0)
 
-  const setPrompt = (value: string, setOptions?: { persistDraft?: boolean }) => {
+  const setPrompt = (value: string) => {
     setPromptInternal(value)
     // Persist drafts only when the user is at the "fresh" position (not browsing history).
     // This keeps the bottom-of-history draft stable even if the user edits recalled history entries.
-    if (setOptions?.persistDraft !== false && historyIndex() === -1) {
+    if (historyIndex() === -1) {
       setSessionDraftPrompt(options.instanceId(), options.sessionId(), value)
     }
   }
diff --git a/packages/ui/src/components/prompt-input/usePromptVoiceInput.ts b/packages/ui/src/components/prompt-input/usePromptVoiceInput.ts
index 0a13a6ff..f05c4e05 100644
--- a/packages/ui/src/components/prompt-input/usePromptVoiceInput.ts
+++ b/packages/ui/src/components/prompt-input/usePromptVoiceInput.ts
@@ -1,30 +1,242 @@
-import type { Accessor } from "solid-js"
-import { usePromptBufferedVoiceInput } from "./usePromptBufferedVoiceInput"
-import { usePromptRealtimeVoiceInput } from "./usePromptRealtimeVoiceInput"
+import { createEffect, createSignal, onCleanup, type Accessor } from "solid-js"
+import { showAlertDialog } from "../../stores/alerts"
+import { loadSpeechCapabilities, speechCapabilities } from "../../stores/speech"
+import { serverApi } from "../../lib/api-client"
+import { useI18n } from "../../lib/i18n"
 
 interface UsePromptVoiceInputOptions {
   prompt: Accessor<string>
-  setPrompt: (value: string, options?: { persistDraft?: boolean }) => void
+  setPrompt: (value: string) => void
   getTextarea: () => HTMLTextAreaElement | null
   enabled: Accessor<boolean>
   disabled: Accessor<boolean>
-  useRealtime: Accessor<boolean>
 }
 
+type VoiceInputState = "idle" | "recording" | "transcribing"
+
 export function usePromptVoiceInput(options: UsePromptVoiceInputOptions) {
-  const buffered = usePromptBufferedVoiceInput(options)
-  const realtime = usePromptRealtimeVoiceInput(options)
+  const { t } = useI18n()
+  const [state, setState] = createSignal<VoiceInputState>("idle")
+  const [elapsedMs, setElapsedMs] = createSignal(0)
 
-  const active = () => (options.useRealtime() ? realtime : buffered)
+  let mediaRecorder: MediaRecorder | null = null
+  let mediaStream: MediaStream | null = null
+  let timerId: number | undefined
+  let shouldTranscribe = true
+  let recordedChunks: Blob[] = []
+  let recordingStartedAt = 0
+
+  createEffect(() => {
+    void loadSpeechCapabilities()
+  })
+
+  onCleanup(() => {
+    cleanupMedia(false)
+  })
+
+  const isSupported = () => {
+    if (typeof window === "undefined") return false
+    return typeof window.MediaRecorder !== "undefined" && Boolean(navigator.mediaDevices?.getUserMedia)
+  }
+
+  const canUseVoiceInput = () => {
+    const capabilities = speechCapabilities()
+    return Boolean(
+      options.enabled() &&
+        isSupported() &&
+        capabilities?.available &&
+        capabilities?.configured &&
+        capabilities?.supportsStt,
+    )
+  }
+
+  async function toggleRecording(): Promise<void> {
+    if (state() === "recording") {
+      stopRecording()
+      return
+    }
+
+    if (!canUseVoiceInput() || options.disabled() || state() === "transcribing") return
+
+    try {
+      await startRecording()
+    } catch (error) {
+      cleanupMedia(false)
+      showAlertDialog(t("promptInput.voiceInput.error.permission"), {
+        title: t("promptInput.voiceInput.error.title"),
+        detail: error instanceof Error ? error.message : String(error),
+        variant: "error",
+      })
+    }
+  }
+
+  function stopRecording() {
+    if (!mediaRecorder || state() !== "recording") return
+    shouldTranscribe = true
+    mediaRecorder.stop()
+    setState("transcribing")
+    stopTimer()
+  }
+
+  function cancelRecording() {
+    if (!mediaRecorder || state() !== "recording") return
+    shouldTranscribe = false
+    mediaRecorder.stop()
+    cleanupMedia(false)
+  }
+
+  async function startRecording() {
+    if (!isSupported()) {
+      showAlertDialog(t("promptInput.voiceInput.error.unsupported"), {
+        title: t("promptInput.voiceInput.error.title"),
+        variant: "error",
+      })
+      return
+    }
+
+    recordedChunks = []
+    shouldTranscribe = true
+    mediaStream = await navigator.mediaDevices.getUserMedia({ audio: true })
+    mediaRecorder = createRecorder(mediaStream)
+
+    mediaRecorder.addEventListener("dataavailable", (event) => {
+      if (event.data.size > 0) {
+        recordedChunks.push(event.data)
+      }
+    })
+
+    mediaRecorder.addEventListener("stop", () => {
+      void finalizeRecording()
+    })
+
+    recordingStartedAt = Date.now()
+    setElapsedMs(0)
+    setState("recording")
+    startTimer()
+    mediaRecorder.start()
+  }
+
+  async function finalizeRecording() {
+    const recorder = mediaRecorder
+    const stream = mediaStream
+    mediaRecorder = null
+    mediaStream = null
+
+    if (!shouldTranscribe || recordedChunks.length === 0) {
+      recordedChunks = []
+      stopTracks(stream)
+      setState("idle")
+      setElapsedMs(0)
+      return
+    }
+
+    const mimeType = recorder?.mimeType || recordedChunks[0]?.type || "audio/webm"
+
+    try {
+      const audioBlob = new Blob(recordedChunks, { type: mimeType })
+      const transcription = await serverApi.transcribeAudio({
+        audioBase64: await blobToBase64(audioBlob),
+        mimeType,
+      })
+      if (transcription.text.trim()) {
+        insertTranscript(transcription.text.trim())
+      }
+    } catch (error) {
+      showAlertDialog(t("promptInput.voiceInput.error.transcribe"), {
+        title: t("promptInput.voiceInput.error.title"),
+        detail: error instanceof Error ? error.message : String(error),
+        variant: "error",
+      })
+    } finally {
+      recordedChunks = []
+      stopTracks(stream)
+      setState("idle")
+      setElapsedMs(0)
+    }
+  }
+
+  function insertTranscript(text: string) {
+    const current = options.prompt()
+    const textarea = options.getTextarea()
+    const start = textarea ? textarea.selectionStart : current.length
+    const end = textarea ? textarea.selectionEnd : current.length
+    const before = current.slice(0, start)
+    const after = current.slice(end)
+    const prefix = before.length > 0 && !/\s$/.test(before) ? " " : ""
+    const suffix = after.length > 0 && !/^\s/.test(after) ? " " : ""
+    const nextValue = `${before}${prefix}${text}${suffix}${after}`
+    const cursor = before.length + prefix.length + text.length
+
+    options.setPrompt(nextValue)
+    if (textarea) {
+      setTimeout(() => {
+        textarea.focus()
+        textarea.setSelectionRange(cursor, cursor)
+      }, 0)
+    }
+  }
+
+  function cleanupMedia(resetState = true) {
+    stopTimer()
+    if (mediaRecorder && mediaRecorder.state !== "inactive") {
+      mediaRecorder.stop()
+    }
+    mediaRecorder = null
+    stopTracks(mediaStream)
+    mediaStream = null
+    recordedChunks = []
+    if (resetState) {
+      setState("idle")
+      setElapsedMs(0)
+    }
+  }
+
+  function startTimer() {
+    stopTimer()
+    timerId = window.setInterval(() => {
+      setElapsedMs(Date.now() - recordingStartedAt)
+    }, 250)
+  }
+
+  function stopTimer() {
+    if (timerId !== undefined) {
+      window.clearInterval(timerId)
+      timerId = undefined
+    }
+  }
 
   return {
-    state: () => active().state(),
-    elapsedMs: () => active().elapsedMs(),
-    canUseVoiceInput: () => active().canUseVoiceInput(),
-    toggleRecording: () => active().toggleRecording(),
-    cancelRecording: () => active().cancelRecording(),
-    isRecording: () => active().isRecording(),
-    isTranscribing: () => active().isTranscribing(),
-    buttonTitle: () => active().buttonTitle(),
+    state,
+    elapsedMs,
+    canUseVoiceInput,
+    toggleRecording,
+    cancelRecording,
+    isRecording: () => state() === "recording",
+    isTranscribing: () => state() === "transcribing",
+    buttonTitle: () => {
+      if (state() === "recording") return t("promptInput.voiceInput.stop.title")
+      if (state() === "transcribing") return t("promptInput.voiceInput.transcribing.title")
+      return t("promptInput.voiceInput.start.title")
+    },
   }
 }
+
+function createRecorder(stream: MediaStream): MediaRecorder {
+  const candidates = ["audio/webm;codecs=opus", "audio/webm", "audio/mp4", "audio/ogg;codecs=opus"]
+  const supported = candidates.find((candidate) => typeof MediaRecorder.isTypeSupported !== "function" || MediaRecorder.isTypeSupported(candidate))
+  return supported ? new MediaRecorder(stream, { mimeType: supported }) : new MediaRecorder(stream)
+}
+
+function stopTracks(stream: MediaStream | null) {
+  stream?.getTracks().forEach((track) => track.stop())
+}
+
+async function blobToBase64(blob: Blob): Promise<string> {
+  const buffer = await blob.arrayBuffer()
+  const bytes = new Uint8Array(buffer)
+  let binary = ""
+  for (const byte of bytes) {
+    binary += String.fromCharCode(byte)
+  }
+  return btoa(binary)
+}
diff --git a/packages/ui/src/components/settings/speech-settings-card.tsx b/packages/ui/src/components/settings/speech-settings-card.tsx
index a1ca1169..464fb4ba 100644
--- a/packages/ui/src/components/settings/speech-settings-card.tsx
+++ b/packages/ui/src/components/settings/speech-settings-card.tsx
@@ -10,8 +10,6 @@ const log = getLogger("actions")
 type DraftFields = {
   apiKey: string
   baseUrl: string
-  useRealtime: boolean
-  realtimeModel: string
   sttModel: string
   ttsModel: string
   ttsVoice: string
@@ -21,8 +19,6 @@ function createDraftFields(speech: SpeechSettings): DraftFields {
   return {
     apiKey: speech.apiKey ?? "",
     baseUrl: speech.baseUrl ?? "",
-    useRealtime: speech.useRealtime,
-    realtimeModel: speech.realtimeModel,
     sttModel: speech.sttModel,
     ttsModel: speech.ttsModel,
     ttsVoice: speech.ttsVoice,
@@ -30,7 +26,7 @@ function createDraftFields(speech: SpeechSettings): DraftFields {
 }
 
 function isDraftEqual(a: DraftFields, b: DraftFields): boolean {
-  return a.apiKey === b.apiKey && a.baseUrl === b.baseUrl && a.useRealtime === b.useRealtime && a.realtimeModel === b.realtimeModel && a.sttModel === b.sttModel && a.ttsModel === b.ttsModel && a.ttsVoice === b.ttsVoice
+  return a.apiKey === b.apiKey && a.baseUrl === b.baseUrl && a.sttModel === b.sttModel && a.ttsModel === b.ttsModel && a.ttsVoice === b.ttsVoice
 }
 
 export const SpeechSettingsCard: Component = () => {
@@ -61,7 +57,7 @@ export const SpeechSettingsCard: Component = () => {
     return speechCapabilities()?.configured ? t("settings.speech.status.configured") : t("settings.speech.status.missing")
   }
 
-  const updateDraft = <K extends keyof DraftFields>(key: K, value: DraftFields[K]) => {
+  const updateDraft = (key: keyof DraftFields, value: string) => {
     setSaveStatus("idle")
     setDrafts((current) => ({ ...current, [key]: value }))
   }
@@ -69,14 +65,12 @@ export const SpeechSettingsCard: Component = () => {
   const isDirty = createMemo(() => {
     const speech = serverSettings().speech
     const current = drafts()
-      return (
-        (current.apiKey || "") !== (speech.apiKey || "") ||
-        (current.baseUrl || "") !== (speech.baseUrl || "") ||
-        current.useRealtime !== speech.useRealtime ||
-        current.realtimeModel !== speech.realtimeModel ||
-        current.sttModel !== speech.sttModel ||
-        current.ttsModel !== speech.ttsModel ||
-        current.ttsVoice !== speech.ttsVoice
+    return (
+      (current.apiKey || "") !== (speech.apiKey || "") ||
+      (current.baseUrl || "") !== (speech.baseUrl || "") ||
+      current.sttModel !== speech.sttModel ||
+      current.ttsModel !== speech.ttsModel ||
+      current.ttsVoice !== speech.ttsVoice
     )
   })
 
@@ -96,8 +90,6 @@ export const SpeechSettingsCard: Component = () => {
       await updateSpeechSettings({
         apiKey: current.apiKey.trim() || undefined,
         baseUrl: current.baseUrl.trim() || undefined,
-        useRealtime: current.useRealtime,
-        realtimeModel: current.realtimeModel.trim() || undefined,
         sttModel: current.sttModel.trim() || undefined,
         ttsModel: current.ttsModel.trim() || undefined,
         ttsVoice: current.ttsVoice.trim() || undefined,
@@ -106,8 +98,6 @@ export const SpeechSettingsCard: Component = () => {
       setDrafts({
         apiKey: current.apiKey.trim(),
         baseUrl: current.baseUrl.trim(),
-        useRealtime: current.useRealtime,
-        realtimeModel: current.realtimeModel.trim() || serverSettings().speech.realtimeModel,
         sttModel: current.sttModel.trim() || serverSettings().speech.sttModel,
         ttsModel: current.ttsModel.trim() || serverSettings().speech.ttsModel,
         ttsVoice: current.ttsVoice.trim() || serverSettings().speech.ttsVoice,
@@ -169,27 +159,6 @@ export const SpeechSettingsCard: Component = () => {
           onInput={(value) => updateDraft("baseUrl", value)}
           placeholder={t("settings.speech.baseUrl.placeholder")}
         />
-        <div class="settings-toggle-row">
-          <div>
-            <div class="settings-toggle-title">{t("settings.speech.realtime.title")}</div>
-            <div class="settings-toggle-caption">{t("settings.speech.realtime.subtitle")}</div>
-          </div>
-          <label class="settings-checkbox-toggle">
-            <input
-              type="checkbox"
-              checked={drafts().useRealtime}
-              onChange={(event) => updateDraft("useRealtime", event.currentTarget.checked)}
-            />
-            <span>{t("settings.common.enabled")}</span>
-          </label>
-        </div>
-        <Field
-          label={t("settings.speech.realtimeModel.title")}
-          caption={t("settings.speech.realtimeModel.subtitle")}
-          value={drafts().realtimeModel}
-          onInput={(value) => updateDraft("realtimeModel", value)}
-          placeholder={t("settings.speech.realtimeModel.placeholder")}
-        />
         <Field
           label={t("settings.speech.sttModel.title")}
           caption={t("settings.speech.sttModel.subtitle")}
diff --git a/packages/ui/src/lib/api-client.ts b/packages/ui/src/lib/api-client.ts
index 213d8c4a..d6e0868a 100644
--- a/packages/ui/src/lib/api-client.ts
+++ b/packages/ui/src/lib/api-client.ts
@@ -8,8 +8,6 @@ import type {
   FileSystemListResponse,
   InstanceData,
   SpeechCapabilitiesResponse,
-  SpeechRealtimeEvent,
-  SpeechRealtimeSessionResponse,
   SpeechSynthesisResponse,
   SpeechTranscriptionResponse,
   ServerMeta,
@@ -41,10 +39,6 @@ export function buildBackgroundProcessStreamUrl(instanceId: string, processId: s
   return buildAbsoluteUrl(`/workspaces/${encodedInstanceId}/plugin/background-processes/${encodedProcessId}/stream`)
 }
 
-export function buildRealtimeSpeechEventsUrl(sessionId: string): string {
-  return buildAbsoluteUrl(`/api/speech/realtime/sessions/${encodeURIComponent(sessionId)}/events`)
-}
-
 function buildEventsUrl(base: string | undefined, path: string): string {
   if (path.startsWith("http://") || path.startsWith("https://")) {
     return path
@@ -247,29 +241,6 @@ export const serverApi = {
   fetchSpeechCapabilities(): Promise<SpeechCapabilitiesResponse> {
     return request<SpeechCapabilitiesResponse>("/api/speech/capabilities")
   },
-  createRealtimeSpeechSession(payload?: { language?: string; prompt?: string }): Promise<SpeechRealtimeSessionResponse> {
-    return request<SpeechRealtimeSessionResponse>("/api/speech/realtime/sessions", {
-      method: "POST",
-      body: JSON.stringify(payload ?? {}),
-    })
-  },
-  appendRealtimeSpeechAudio(sessionId: string, payload: { audioBase64: string }): Promise<void> {
-    return request(`/api/speech/realtime/sessions/${encodeURIComponent(sessionId)}/audio`, {
-      method: "POST",
-      body: JSON.stringify(payload),
-    })
-  },
-  finalizeRealtimeSpeechSession(sessionId: string): Promise<void> {
-    return request(`/api/speech/realtime/sessions/${encodeURIComponent(sessionId)}/finalize`, {
-      method: "POST",
-      body: JSON.stringify({}),
-    })
-  },
-  closeRealtimeSpeechSession(sessionId: string): Promise<void> {
-    return request(`/api/speech/realtime/sessions/${encodeURIComponent(sessionId)}`, {
-      method: "DELETE",
-    })
-  },
   transcribeAudio(payload: {
     audioBase64: string
     mimeType: string
@@ -361,34 +332,21 @@ export const serverApi = {
   },
   connectEvents(onEvent: (event: WorkspaceEventPayload) => void, onError?: () => void) {
     sseLogger.info(`Connecting to ${EVENTS_URL}`)
-    return connectEventSource(EVENTS_URL, onEvent, onError)
-  },
-  connectRealtimeSpeechEvents(
-    sessionId: string,
-    onEvent: (event: SpeechRealtimeEvent) => void,
-    onError?: () => void,
-  ) {
-    const url = buildRealtimeSpeechEventsUrl(sessionId)
-    sseLogger.info(`Connecting to ${url}`)
-    return connectEventSource(url, onEvent, onError)
-  },
-}
-
-function connectEventSource<T>(url: string, onEvent: (event: T) => void, onError?: () => void) {
-  const source = new EventSource(url, { withCredentials: true } as any)
-  source.onmessage = (event) => {
-    try {
-      const payload = JSON.parse(event.data) as T
-      onEvent(payload)
-    } catch (error) {
-      sseLogger.error("Failed to parse event", error)
+    const source = new EventSource(EVENTS_URL, { withCredentials: true } as any)
+    source.onmessage = (event) => {
+      try {
+        const payload = JSON.parse(event.data) as WorkspaceEventPayload
+        onEvent(payload)
+      } catch (error) {
+        sseLogger.error("Failed to parse event", error)
+      }
     }
-  }
-  source.onerror = () => {
-    sseLogger.warn("EventSource error, closing stream")
-    onError?.()
-  }
-  return source
+    source.onerror = () => {
+      sseLogger.warn("EventSource error, closing stream")
+      onError?.()
+    }
+    return source
+  },
 }
 
-export type { WorkspaceDescriptor, WorkspaceLogEntry, WorkspaceEventPayload, WorkspaceEventType, SpeechRealtimeEvent }
+export type { WorkspaceDescriptor, WorkspaceLogEntry, WorkspaceEventPayload, WorkspaceEventType }
diff --git a/packages/ui/src/lib/i18n/messages/en/messaging.ts b/packages/ui/src/lib/i18n/messages/en/messaging.ts
index 08cb1848..7b8a574a 100644
--- a/packages/ui/src/lib/i18n/messages/en/messaging.ts
+++ b/packages/ui/src/lib/i18n/messages/en/messaging.ts
@@ -140,10 +140,8 @@ export const messagingMessages = {
   "promptInput.send.errorTitle": "Send failed",
   "promptInput.voiceInput.start.title": "Start voice input",
   "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
-  "promptInput.voiceInput.connecting.title": "Connecting microphone",
   "promptInput.voiceInput.transcribing.title": "Transcribing audio",
   "promptInput.voiceInput.error.title": "Voice input failed",
-  "promptInput.voiceInput.error.connection": "Unable to start realtime voice input.",
   "promptInput.voiceInput.error.permission": "Microphone access is required to record voice input.",
   "promptInput.voiceInput.error.unsupported": "Voice input is not supported in this browser.",
   "promptInput.voiceInput.error.transcribe": "Unable to transcribe the recorded audio.",
diff --git a/packages/ui/src/lib/i18n/messages/en/settings.ts b/packages/ui/src/lib/i18n/messages/en/settings.ts
index eb068eac..318f1dcb 100644
--- a/packages/ui/src/lib/i18n/messages/en/settings.ts
+++ b/packages/ui/src/lib/i18n/messages/en/settings.ts
@@ -156,18 +156,13 @@ export const settingsMessages = {
   "settings.speech.baseUrl.title": "Base URL",
   "settings.speech.baseUrl.subtitle": "Optional override for OpenAI-compatible speech endpoints.",
   "settings.speech.baseUrl.placeholder": "https://api.openai.com/v1",
-  "settings.speech.realtime.title": "Realtime dictation",
-  "settings.speech.realtime.subtitle": "Use the Realtime API for prompt voice input. Disable this if your speech server only supports standard transcription uploads.",
-  "settings.speech.realtimeModel.title": "Realtime model",
-  "settings.speech.realtimeModel.subtitle": "Model used when opening the Realtime WebSocket session. This is separate from the speech-to-text transcription model.",
-  "settings.speech.realtimeModel.placeholder": "gpt-realtime",
   "settings.speech.sttModel.title": "Transcription model",
   "settings.speech.sttModel.subtitle": "Model used for prompt speech-to-text requests.",
   "settings.speech.ttsModel.title": "Speech model",
   "settings.speech.ttsModel.subtitle": "Default text-to-speech model reserved for future playback features.",
   "settings.speech.ttsVoice.title": "Default voice",
   "settings.speech.ttsVoice.subtitle": "Default text-to-speech voice reserved for future playback features.",
-  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and the selected dictation mode is supported by this browser and provider.",
+  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and supported by this browser.",
   "settings.speech.save.action": "Save",
   "settings.speech.save.saving": "Saving...",
   "settings.speech.save.saved": "Saved",
diff --git a/packages/ui/src/lib/i18n/messages/es/messaging.ts b/packages/ui/src/lib/i18n/messages/es/messaging.ts
index 23dcd94e..850ab6b4 100644
--- a/packages/ui/src/lib/i18n/messages/es/messaging.ts
+++ b/packages/ui/src/lib/i18n/messages/es/messaging.ts
@@ -142,10 +142,8 @@ export const messagingMessages = {
   "promptInput.send.errorTitle": "Error al enviar",
   "promptInput.voiceInput.start.title": "Start voice input",
   "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
-  "promptInput.voiceInput.connecting.title": "Connecting microphone",
   "promptInput.voiceInput.transcribing.title": "Transcribing audio",
   "promptInput.voiceInput.error.title": "Voice input failed",
-  "promptInput.voiceInput.error.connection": "Unable to start realtime voice input.",
   "promptInput.voiceInput.error.permission": "Microphone access is required to record voice input.",
   "promptInput.voiceInput.error.unsupported": "Voice input is not supported in this browser.",
   "promptInput.voiceInput.error.transcribe": "Unable to transcribe the recorded audio.",
diff --git a/packages/ui/src/lib/i18n/messages/es/settings.ts b/packages/ui/src/lib/i18n/messages/es/settings.ts
index 48fb8e4e..1c39e405 100644
--- a/packages/ui/src/lib/i18n/messages/es/settings.ts
+++ b/packages/ui/src/lib/i18n/messages/es/settings.ts
@@ -156,18 +156,13 @@ export const settingsMessages = {
   "settings.speech.baseUrl.title": "Base URL",
   "settings.speech.baseUrl.subtitle": "Optional override for OpenAI-compatible speech endpoints.",
   "settings.speech.baseUrl.placeholder": "https://api.openai.com/v1",
-  "settings.speech.realtime.title": "Realtime dictation",
-  "settings.speech.realtime.subtitle": "Use the Realtime API for prompt voice input. Disable this if your speech server only supports standard transcription uploads.",
-  "settings.speech.realtimeModel.title": "Realtime model",
-  "settings.speech.realtimeModel.subtitle": "Model used when opening the Realtime WebSocket session. This is separate from the speech-to-text transcription model.",
-  "settings.speech.realtimeModel.placeholder": "gpt-realtime",
   "settings.speech.sttModel.title": "Transcription model",
   "settings.speech.sttModel.subtitle": "Model used for prompt speech-to-text requests.",
   "settings.speech.ttsModel.title": "Speech model",
   "settings.speech.ttsModel.subtitle": "Default text-to-speech model reserved for future playback features.",
   "settings.speech.ttsVoice.title": "Default voice",
   "settings.speech.ttsVoice.subtitle": "Default text-to-speech voice reserved for future playback features.",
-  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and the selected dictation mode is supported by this browser and provider.",
+  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and supported by this browser.",
   "settings.speech.save.action": "Save",
   "settings.speech.save.saving": "Saving...",
   "settings.speech.save.saved": "Saved",
diff --git a/packages/ui/src/lib/i18n/messages/fr/messaging.ts b/packages/ui/src/lib/i18n/messages/fr/messaging.ts
index 2347f740..0a742efa 100644
--- a/packages/ui/src/lib/i18n/messages/fr/messaging.ts
+++ b/packages/ui/src/lib/i18n/messages/fr/messaging.ts
@@ -142,10 +142,8 @@ export const messagingMessages = {
   "promptInput.send.errorTitle": "Échec de l'envoi",
   "promptInput.voiceInput.start.title": "Start voice input",
   "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
-  "promptInput.voiceInput.connecting.title": "Connecting microphone",
   "promptInput.voiceInput.transcribing.title": "Transcribing audio",
   "promptInput.voiceInput.error.title": "Voice input failed",
-  "promptInput.voiceInput.error.connection": "Unable to start realtime voice input.",
   "promptInput.voiceInput.error.permission": "Microphone access is required to record voice input.",
   "promptInput.voiceInput.error.unsupported": "Voice input is not supported in this browser.",
   "promptInput.voiceInput.error.transcribe": "Unable to transcribe the recorded audio.",
diff --git a/packages/ui/src/lib/i18n/messages/fr/settings.ts b/packages/ui/src/lib/i18n/messages/fr/settings.ts
index e692e647..710d2c77 100644
--- a/packages/ui/src/lib/i18n/messages/fr/settings.ts
+++ b/packages/ui/src/lib/i18n/messages/fr/settings.ts
@@ -156,18 +156,13 @@ export const settingsMessages = {
   "settings.speech.baseUrl.title": "Base URL",
   "settings.speech.baseUrl.subtitle": "Optional override for OpenAI-compatible speech endpoints.",
   "settings.speech.baseUrl.placeholder": "https://api.openai.com/v1",
-  "settings.speech.realtime.title": "Realtime dictation",
-  "settings.speech.realtime.subtitle": "Use the Realtime API for prompt voice input. Disable this if your speech server only supports standard transcription uploads.",
-  "settings.speech.realtimeModel.title": "Realtime model",
-  "settings.speech.realtimeModel.subtitle": "Model used when opening the Realtime WebSocket session. This is separate from the speech-to-text transcription model.",
-  "settings.speech.realtimeModel.placeholder": "gpt-realtime",
   "settings.speech.sttModel.title": "Transcription model",
   "settings.speech.sttModel.subtitle": "Model used for prompt speech-to-text requests.",
   "settings.speech.ttsModel.title": "Speech model",
   "settings.speech.ttsModel.subtitle": "Default text-to-speech model reserved for future playback features.",
   "settings.speech.ttsVoice.title": "Default voice",
   "settings.speech.ttsVoice.subtitle": "Default text-to-speech voice reserved for future playback features.",
-  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and the selected dictation mode is supported by this browser and provider.",
+  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and supported by this browser.",
   "settings.speech.save.action": "Save",
   "settings.speech.save.saving": "Saving...",
   "settings.speech.save.saved": "Saved",
diff --git a/packages/ui/src/lib/i18n/messages/ja/messaging.ts b/packages/ui/src/lib/i18n/messages/ja/messaging.ts
index 46dbbac4..60cd8881 100644
--- a/packages/ui/src/lib/i18n/messages/ja/messaging.ts
+++ b/packages/ui/src/lib/i18n/messages/ja/messaging.ts
@@ -142,10 +142,8 @@ export const messagingMessages = {
   "promptInput.send.errorTitle": "送信に失敗",
   "promptInput.voiceInput.start.title": "Start voice input",
   "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
-  "promptInput.voiceInput.connecting.title": "Connecting microphone",
   "promptInput.voiceInput.transcribing.title": "Transcribing audio",
   "promptInput.voiceInput.error.title": "Voice input failed",
-  "promptInput.voiceInput.error.connection": "Unable to start realtime voice input.",
   "promptInput.voiceInput.error.permission": "Microphone access is required to record voice input.",
   "promptInput.voiceInput.error.unsupported": "Voice input is not supported in this browser.",
   "promptInput.voiceInput.error.transcribe": "Unable to transcribe the recorded audio.",
diff --git a/packages/ui/src/lib/i18n/messages/ja/settings.ts b/packages/ui/src/lib/i18n/messages/ja/settings.ts
index 1cf7a834..8feaa819 100644
--- a/packages/ui/src/lib/i18n/messages/ja/settings.ts
+++ b/packages/ui/src/lib/i18n/messages/ja/settings.ts
@@ -156,18 +156,13 @@ export const settingsMessages = {
   "settings.speech.baseUrl.title": "Base URL",
   "settings.speech.baseUrl.subtitle": "Optional override for OpenAI-compatible speech endpoints.",
   "settings.speech.baseUrl.placeholder": "https://api.openai.com/v1",
-  "settings.speech.realtime.title": "Realtime dictation",
-  "settings.speech.realtime.subtitle": "Use the Realtime API for prompt voice input. Disable this if your speech server only supports standard transcription uploads.",
-  "settings.speech.realtimeModel.title": "Realtime model",
-  "settings.speech.realtimeModel.subtitle": "Model used when opening the Realtime WebSocket session. This is separate from the speech-to-text transcription model.",
-  "settings.speech.realtimeModel.placeholder": "gpt-realtime",
   "settings.speech.sttModel.title": "Transcription model",
   "settings.speech.sttModel.subtitle": "Model used for prompt speech-to-text requests.",
   "settings.speech.ttsModel.title": "Speech model",
   "settings.speech.ttsModel.subtitle": "Default text-to-speech model reserved for future playback features.",
   "settings.speech.ttsVoice.title": "Default voice",
   "settings.speech.ttsVoice.subtitle": "Default text-to-speech voice reserved for future playback features.",
-  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and the selected dictation mode is supported by this browser and provider.",
+  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and supported by this browser.",
   "settings.speech.save.action": "Save",
   "settings.speech.save.saving": "Saving...",
   "settings.speech.save.saved": "Saved",
diff --git a/packages/ui/src/lib/i18n/messages/ru/messaging.ts b/packages/ui/src/lib/i18n/messages/ru/messaging.ts
index 109d5e2e..a833b25e 100644
--- a/packages/ui/src/lib/i18n/messages/ru/messaging.ts
+++ b/packages/ui/src/lib/i18n/messages/ru/messaging.ts
@@ -142,10 +142,8 @@ export const messagingMessages = {
   "promptInput.send.errorTitle": "Не удалось отправить",
   "promptInput.voiceInput.start.title": "Start voice input",
   "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
-  "promptInput.voiceInput.connecting.title": "Connecting microphone",
   "promptInput.voiceInput.transcribing.title": "Transcribing audio",
   "promptInput.voiceInput.error.title": "Voice input failed",
-  "promptInput.voiceInput.error.connection": "Unable to start realtime voice input.",
   "promptInput.voiceInput.error.permission": "Microphone access is required to record voice input.",
   "promptInput.voiceInput.error.unsupported": "Voice input is not supported in this browser.",
   "promptInput.voiceInput.error.transcribe": "Unable to transcribe the recorded audio.",
diff --git a/packages/ui/src/lib/i18n/messages/ru/settings.ts b/packages/ui/src/lib/i18n/messages/ru/settings.ts
index 6694eaa0..494ff447 100644
--- a/packages/ui/src/lib/i18n/messages/ru/settings.ts
+++ b/packages/ui/src/lib/i18n/messages/ru/settings.ts
@@ -156,18 +156,13 @@ export const settingsMessages = {
   "settings.speech.baseUrl.title": "Base URL",
   "settings.speech.baseUrl.subtitle": "Optional override for OpenAI-compatible speech endpoints.",
   "settings.speech.baseUrl.placeholder": "https://api.openai.com/v1",
-  "settings.speech.realtime.title": "Realtime dictation",
-  "settings.speech.realtime.subtitle": "Use the Realtime API for prompt voice input. Disable this if your speech server only supports standard transcription uploads.",
-  "settings.speech.realtimeModel.title": "Realtime model",
-  "settings.speech.realtimeModel.subtitle": "Model used when opening the Realtime WebSocket session. This is separate from the speech-to-text transcription model.",
-  "settings.speech.realtimeModel.placeholder": "gpt-realtime",
   "settings.speech.sttModel.title": "Transcription model",
   "settings.speech.sttModel.subtitle": "Model used for prompt speech-to-text requests.",
   "settings.speech.ttsModel.title": "Speech model",
   "settings.speech.ttsModel.subtitle": "Default text-to-speech model reserved for future playback features.",
   "settings.speech.ttsVoice.title": "Default voice",
   "settings.speech.ttsVoice.subtitle": "Default text-to-speech voice reserved for future playback features.",
-  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and the selected dictation mode is supported by this browser and provider.",
+  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and supported by this browser.",
   "settings.speech.save.action": "Save",
   "settings.speech.save.saving": "Saving...",
   "settings.speech.save.saved": "Saved",
diff --git a/packages/ui/src/lib/i18n/messages/zh-Hans/messaging.ts b/packages/ui/src/lib/i18n/messages/zh-Hans/messaging.ts
index 13d36824..aeabd954 100644
--- a/packages/ui/src/lib/i18n/messages/zh-Hans/messaging.ts
+++ b/packages/ui/src/lib/i18n/messages/zh-Hans/messaging.ts
@@ -142,10 +142,8 @@ export const messagingMessages = {
   "promptInput.send.errorTitle": "发送失败",
   "promptInput.voiceInput.start.title": "Start voice input",
   "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
-  "promptInput.voiceInput.connecting.title": "Connecting microphone",
   "promptInput.voiceInput.transcribing.title": "Transcribing audio",
   "promptInput.voiceInput.error.title": "Voice input failed",
-  "promptInput.voiceInput.error.connection": "Unable to start realtime voice input.",
   "promptInput.voiceInput.error.permission": "Microphone access is required to record voice input.",
   "promptInput.voiceInput.error.unsupported": "Voice input is not supported in this browser.",
   "promptInput.voiceInput.error.transcribe": "Unable to transcribe the recorded audio.",
diff --git a/packages/ui/src/lib/i18n/messages/zh-Hans/settings.ts b/packages/ui/src/lib/i18n/messages/zh-Hans/settings.ts
index 68b3a11c..aff1063f 100644
--- a/packages/ui/src/lib/i18n/messages/zh-Hans/settings.ts
+++ b/packages/ui/src/lib/i18n/messages/zh-Hans/settings.ts
@@ -156,18 +156,13 @@ export const settingsMessages = {
   "settings.speech.baseUrl.title": "Base URL",
   "settings.speech.baseUrl.subtitle": "Optional override for OpenAI-compatible speech endpoints.",
   "settings.speech.baseUrl.placeholder": "https://api.openai.com/v1",
-  "settings.speech.realtime.title": "Realtime dictation",
-  "settings.speech.realtime.subtitle": "Use the Realtime API for prompt voice input. Disable this if your speech server only supports standard transcription uploads.",
-  "settings.speech.realtimeModel.title": "Realtime model",
-  "settings.speech.realtimeModel.subtitle": "Model used when opening the Realtime WebSocket session. This is separate from the speech-to-text transcription model.",
-  "settings.speech.realtimeModel.placeholder": "gpt-realtime",
   "settings.speech.sttModel.title": "Transcription model",
   "settings.speech.sttModel.subtitle": "Model used for prompt speech-to-text requests.",
   "settings.speech.ttsModel.title": "Speech model",
   "settings.speech.ttsModel.subtitle": "Default text-to-speech model reserved for future playback features.",
   "settings.speech.ttsVoice.title": "Default voice",
   "settings.speech.ttsVoice.subtitle": "Default text-to-speech voice reserved for future playback features.",
-  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and the selected dictation mode is supported by this browser and provider.",
+  "settings.speech.help": "Prompt voice input only appears when speech transcription is configured and supported by this browser.",
   "settings.speech.save.action": "Save",
   "settings.speech.save.saving": "Saving...",
   "settings.speech.save.saved": "Saved",
diff --git a/packages/ui/src/stores/preferences.tsx b/packages/ui/src/stores/preferences.tsx
index 6ea73763..a387b754 100644
--- a/packages/ui/src/stores/preferences.tsx
+++ b/packages/ui/src/stores/preferences.tsx
@@ -34,8 +34,6 @@ export interface SpeechSettings {
   provider: SpeechProviderPreference
   apiKey?: string
   baseUrl?: string
-  useRealtime: boolean
-  realtimeModel: string
   sttModel: string
   ttsModel: string
   ttsVoice: string
@@ -138,8 +136,6 @@ const defaultUiSettings: UiSettings = {
 
 const defaultSpeechSettings: SpeechSettings = {
   provider: "openai-compatible",
-  useRealtime: true,
-  realtimeModel: "gpt-realtime",
   sttModel: "gpt-4o-mini-transcribe",
   ttsModel: "gpt-4o-mini-tts",
   ttsVoice: "alloy",
@@ -188,11 +184,6 @@ function normalizeSpeechSettings(input?: Partial<SpeechSettings> | null): Speech
     provider: sanitized.provider === "openai-compatible" ? sanitized.provider : defaultSpeechSettings.provider,
     apiKey: typeof sanitized.apiKey === "string" && sanitized.apiKey.trim() ? sanitized.apiKey.trim() : undefined,
     baseUrl: typeof sanitized.baseUrl === "string" && sanitized.baseUrl.trim() ? sanitized.baseUrl.trim() : undefined,
-    useRealtime: sanitized.useRealtime ?? defaultSpeechSettings.useRealtime,
-    realtimeModel:
-      typeof sanitized.realtimeModel === "string" && sanitized.realtimeModel.trim()
-        ? sanitized.realtimeModel.trim()
-        : defaultSpeechSettings.realtimeModel,
     sttModel:
       typeof sanitized.sttModel === "string" && sanitized.sttModel.trim()
         ? sanitized.sttModel.trim()