feat(speech): make prompt input push to talk

This reverts commit f9b5e2b529.

package-lock.json

@@ -8231,6 +8231,27 @@
         "regex-recursion": "^6.0.2"
       }
     },
+    "node_modules/openai": {
+      "version": "6.27.0",
+      "resolved": "https://registry.npmjs.org/openai/-/openai-6.27.0.tgz",
+      "integrity": "sha512-osTKySlrdYrLYTt0zjhY8yp0JUBmWDCN+Q+QxsV4xMQnnoVFpylgKGgxwN8sSdTNw0G4y+WUXs4eCMWpyDNWZQ==",
+      "license": "Apache-2.0",
+      "bin": {
+        "openai": "bin/cli"
+      },
+      "peerDependencies": {
+        "ws": "^8.18.0",
+        "zod": "^3.25 || ^4.0"
+      },
+      "peerDependenciesMeta": {
+        "ws": {
+          "optional": true
+        },
+        "zod": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/own-keys": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/own-keys/-/own-keys-1.0.1.tgz",
@@ -11988,6 +12009,7 @@
     "node_modules/zod": {
       "version": "3.25.76",
       "license": "MIT",
+      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
@@ -12049,6 +12071,7 @@
         "fastify": "^4.28.1",
         "fuzzysort": "^2.0.4",
         "node-forge": "^1.3.3",
+        "openai": "^6.27.0",
         "pino": "^9.4.0",
         "undici": "^6.19.8",
         "yaml": "^2.4.2",

packages/server/package.json

@@ -32,6 +32,7 @@
     "fastify": "^4.28.1",
     "fuzzysort": "^2.0.4",
     "node-forge": "^1.3.3",
+    "openai": "^6.27.0",
     "pino": "^9.4.0",
     "undici": "^6.19.8",
     "yaml": "^2.4.2",

packages/server/src/api-types.ts

@@ -207,6 +207,36 @@ export interface BinaryValidationResult {
   error?: string
 }
 
+export interface SpeechSegment {
+  startMs: number
+  endMs: number
+  text: string
+}
+
+export interface SpeechCapabilitiesResponse {
+  available: boolean
+  configured: boolean
+  provider: string
+  supportsStt: boolean
+  supportsTts: boolean
+  baseUrl?: string
+  sttModel: string
+  ttsModel: string
+  ttsVoice: string
+}
+
+export interface SpeechTranscriptionResponse {
+  text: string
+  language?: string
+  durationMs?: number
+  segments?: SpeechSegment[]
+}
+
+export interface SpeechSynthesisResponse {
+  audioBase64: string
+  mimeType: string
+}
+
 export type WorkspaceEventType =
   | "workspace.created"
   | "workspace.started"

packages/server/src/index.ts

@@ -23,6 +23,7 @@ import { AuthManager, BOOTSTRAP_TOKEN_STDOUT_PREFIX, DEFAULT_AUTH_USERNAME } fro
 import { resolveHttpsOptions } from "./server/tls"
 import { resolveNetworkAddresses } from "./server/network-addresses"
 import { startDevReleaseMonitor } from "./releases/dev-release-monitor"
+import { SpeechService } from "./speech/service"
 
 const require = createRequire(import.meta.url)
 
@@ -304,6 +305,7 @@ async function main() {
   })
   const fileSystemBrowser = new FileSystemBrowser({ rootDir: options.rootDir, unrestricted: options.unrestrictedRoot })
   const instanceStore = new InstanceStore(configLocation.instancesDir)
+  const speechService = new SpeechService(settings, logger.child({ component: "speech" }))
   const instanceEventBridge = new InstanceEventBridge({
     workspaceManager,
     eventBus,
@@ -388,6 +390,7 @@ async function main() {
         eventBus,
         serverMeta,
         instanceStore,
+        speechService,
         authManager,
         uiStaticDir: uiResolution.uiStaticDir ?? DEFAULT_UI_STATIC_DIR,
         uiDevServerUrl: uiResolution.uiDevServerUrl,
@@ -408,6 +411,7 @@ async function main() {
         eventBus,
         serverMeta,
         instanceStore,
+        speechService,
         authManager,
         uiStaticDir: uiResolution.uiStaticDir ?? DEFAULT_UI_STATIC_DIR,
         uiDevServerUrl: undefined,

packages/server/src/server/http-server.ts

@@ -21,12 +21,14 @@ import { registerStorageRoutes } from "./routes/storage"
 import { registerPluginRoutes } from "./routes/plugin"
 import { registerBackgroundProcessRoutes } from "./routes/background-processes"
 import { registerWorktreeRoutes } from "./routes/worktrees"
+import { registerSpeechRoutes } from "./routes/speech"
 import { ServerMeta } from "../api-types"
 import { InstanceStore } from "../storage/instance-store"
 import { BackgroundProcessManager } from "../background-processes/manager"
 import type { AuthManager } from "../auth/manager"
 import { registerAuthRoutes } from "./routes/auth"
 import { sendUnauthorized, wantsHtml } from "../auth/http-auth"
+import type { SpeechService } from "../speech/service"
 
 interface HttpServerDeps {
   bindHost: string
@@ -41,6 +43,7 @@ interface HttpServerDeps {
   eventBus: EventBus
   serverMeta: ServerMeta
   instanceStore: InstanceStore
+  speechService: SpeechService
   authManager: AuthManager
   uiStaticDir: string
   uiDevServerUrl?: string
@@ -252,6 +255,7 @@ export function createHttpServer(deps: HttpServerDeps) {
     eventBus: deps.eventBus,
     workspaceManager: deps.workspaceManager,
   })
+  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 })

packages/server/src/server/routes/speech.ts

@@ -0,0 +1,46 @@
+import type { FastifyInstance } from "fastify"
+import { z } from "zod"
+import type { SpeechService } from "../../speech/service"
+
+interface RouteDeps {
+  speechService: SpeechService
+}
+
+const TranscribeBodySchema = z.object({
+  audioBase64: z.string().min(1, "Audio payload is required"),
+  mimeType: z.string().min(1, "Audio MIME type is required"),
+  filename: z.string().optional(),
+  language: z.string().optional(),
+  prompt: z.string().optional(),
+})
+
+const SynthesizeBodySchema = z.object({
+  text: z.string().trim().min(1, "Text is required"),
+  format: z.enum(["mp3", "wav", "opus"]).optional(),
+})
+
+export function registerSpeechRoutes(app: FastifyInstance, deps: RouteDeps) {
+  app.get("/api/speech/capabilities", async () => deps.speechService.getCapabilities())
+
+  app.post("/api/speech/transcribe", async (request, reply) => {
+    try {
+      const body = TranscribeBodySchema.parse(request.body ?? {})
+      return await deps.speechService.transcribe(body)
+    } catch (error) {
+      request.log.error({ err: error }, "Failed to transcribe audio")
+      reply.code(400)
+      return { error: error instanceof Error ? error.message : "Failed to transcribe audio" }
+    }
+  })
+
+  app.post("/api/speech/synthesize", async (request, reply) => {
+    try {
+      const body = SynthesizeBodySchema.parse(request.body ?? {})
+      return await deps.speechService.synthesize(body)
+    } catch (error) {
+      request.log.error({ err: error }, "Failed to synthesize audio")
+      reply.code(400)
+      return { error: error instanceof Error ? error.message : "Failed to synthesize audio" }
+    }
+  })
+}

packages/server/src/speech/providers/openai-compatible.ts

@@ -0,0 +1,148 @@
+import OpenAI from "openai"
+import { toFile } from "openai/uploads"
+import type { SpeechSynthesisResponse, SpeechTranscriptionResponse } from "../../api-types"
+import type { Logger } from "../../logger"
+import type { NormalizedSpeechSettings, SynthesizeSpeechInput, TranscribeAudioInput } from "../service"
+
+interface OpenAICompatibleSpeechProviderOptions {
+  settings: NormalizedSpeechSettings
+  logger: Logger
+}
+
+export class OpenAICompatibleSpeechProvider {
+  constructor(private readonly options: OpenAICompatibleSpeechProviderOptions) {}
+
+  getCapabilities() {
+    const { settings } = this.options
+    return {
+      available: true,
+      configured: Boolean(settings.apiKey),
+      provider: settings.provider,
+      supportsStt: true,
+      supportsTts: true,
+      baseUrl: settings.baseUrl,
+      sttModel: settings.sttModel,
+      ttsModel: settings.ttsModel,
+      ttsVoice: settings.ttsVoice,
+    }
+  }
+
+  async transcribe(input: TranscribeAudioInput): Promise<SpeechTranscriptionResponse> {
+    const client = this.createClient()
+    const startedAt = Date.now()
+    const extension = extensionForMime(input.mimeType)
+    const buffer = Buffer.from(input.audioBase64, "base64")
+    const filename = input.filename?.trim() || `prompt-input.${extension}`
+
+    this.options.logger.info(
+      {
+        mimeType: input.mimeType,
+        bytes: buffer.byteLength,
+        language: input.language,
+        model: this.options.settings.sttModel,
+      },
+      "speech.transcribe",
+    )
+
+    const response = await this.requestTranscription(client, buffer, filename, input)
+
+    return {
+      text: typeof response?.text === "string" ? response.text : "",
+      language: typeof response?.language === "string" ? response.language : input.language,
+      durationMs: Number.isFinite(response?.duration) ? Math.round(Number(response.duration) * 1000) : Date.now() - startedAt,
+      segments: Array.isArray(response?.segments)
+        ? response.segments
+            .filter((segment: any) => typeof segment?.text === "string")
+            .map((segment: any) => ({
+              startMs: Math.max(0, Math.round(Number(segment.start ?? 0) * 1000)),
+              endMs: Math.max(0, Math.round(Number(segment.end ?? 0) * 1000)),
+              text: String(segment.text),
+            }))
+        : undefined,
+    }
+  }
+
+  private async requestTranscription(
+    client: OpenAI,
+    buffer: Buffer,
+    filename: string,
+    input: TranscribeAudioInput,
+  ): Promise<any> {
+    const baseRequest = {
+      model: this.options.settings.sttModel,
+      ...(input.language ? { language: input.language } : {}),
+      ...(input.prompt ? { prompt: input.prompt } : {}),
+    }
+
+    try {
+      const file = await toFile(buffer, filename, { type: input.mimeType })
+      return (await client.audio.transcriptions.create({
+        ...baseRequest,
+        file,
+        response_format: "verbose_json" as any,
+      } as any)) as any
+    } catch (error) {
+      this.options.logger.warn({ err: error }, "speech.transcribe verbose_json failed; retrying default format")
+      const retryFile = await toFile(buffer, filename, { type: input.mimeType })
+      return (await client.audio.transcriptions.create({
+        ...baseRequest,
+        file: retryFile,
+      } as any)) as any
+    }
+  }
+
+  async synthesize(input: SynthesizeSpeechInput): Promise<SpeechSynthesisResponse> {
+    const client = this.createClient()
+    const format = input.format ?? "mp3"
+
+    this.options.logger.info(
+      {
+        model: this.options.settings.ttsModel,
+        voice: this.options.settings.ttsVoice,
+        format,
+      },
+      "speech.synthesize",
+    )
+
+    const response = await client.audio.speech.create({
+      model: this.options.settings.ttsModel,
+      voice: this.options.settings.ttsVoice as any,
+      input: input.text,
+      response_format: format as any,
+    })
+
+    const audioBuffer = Buffer.from(await response.arrayBuffer())
+    return {
+      audioBase64: audioBuffer.toString("base64"),
+      mimeType: mimeTypeForFormat(format),
+    }
+  }
+
+  private createClient(): OpenAI {
+    const { settings } = this.options
+    if (!settings.apiKey) {
+      throw new Error("Speech provider is not configured. Add an API key in Speech settings.")
+    }
+
+    return new OpenAI({
+      apiKey: settings.apiKey,
+      baseURL: settings.baseUrl,
+    })
+  }
+}
+
+function extensionForMime(mimeType: string): string {
+  const normalized = mimeType.toLowerCase()
+  if (normalized.includes("webm")) return "webm"
+  if (normalized.includes("ogg")) return "ogg"
+  if (normalized.includes("wav")) return "wav"
+  if (normalized.includes("mpeg") || normalized.includes("mp3")) return "mp3"
+  if (normalized.includes("mp4") || normalized.includes("aac")) return "m4a"
+  return "webm"
+}
+
+function mimeTypeForFormat(format: "mp3" | "wav" | "opus"): string {
+  if (format === "wav") return "audio/wav"
+  if (format === "opus") return "audio/opus"
+  return "audio/mpeg"
+}

packages/server/src/speech/service.ts

@@ -0,0 +1,91 @@
+import { z } from "zod"
+import type { Logger } from "../logger"
+import type { SettingsService } from "../settings/service"
+import type { SpeechCapabilitiesResponse, SpeechSynthesisResponse, SpeechTranscriptionResponse } from "../api-types"
+import { OpenAICompatibleSpeechProvider } from "./providers/openai-compatible"
+
+const ServerSpeechSettingsSchema = z.object({
+  speech: z
+    .object({
+      provider: z.string().optional(),
+      apiKey: z.string().optional(),
+      baseUrl: z.string().optional(),
+      sttModel: z.string().optional(),
+      ttsModel: z.string().optional(),
+      ttsVoice: z.string().optional(),
+    })
+    .optional(),
+})
+
+export interface TranscribeAudioInput {
+  audioBase64: string
+  mimeType: string
+  filename?: string
+  language?: string
+  prompt?: string
+}
+
+export interface SynthesizeSpeechInput {
+  text: string
+  format?: "mp3" | "wav" | "opus"
+}
+
+export interface SpeechProvider {
+  getCapabilities(): SpeechCapabilitiesResponse
+  transcribe(input: TranscribeAudioInput): Promise<SpeechTranscriptionResponse>
+  synthesize(input: SynthesizeSpeechInput): Promise<SpeechSynthesisResponse>
+}
+
+export interface NormalizedSpeechSettings {
+  provider: string
+  apiKey?: string
+  baseUrl?: string
+  sttModel: string
+  ttsModel: string
+  ttsVoice: string
+}
+
+const DEFAULT_PROVIDER = "openai-compatible"
+const DEFAULT_STT_MODEL = "gpt-4o-mini-transcribe"
+const DEFAULT_TTS_MODEL = "gpt-4o-mini-tts"
+const DEFAULT_TTS_VOICE = "alloy"
+export class SpeechService {
+  constructor(
+    private readonly settings: SettingsService,
+    private readonly logger: Logger,
+  ) {}
+
+  getCapabilities(): SpeechCapabilitiesResponse {
+    return this.createProvider().getCapabilities()
+  }
+
+  async transcribe(input: TranscribeAudioInput): Promise<SpeechTranscriptionResponse> {
+    return this.createProvider().transcribe(input)
+  }
+
+  async synthesize(input: SynthesizeSpeechInput): Promise<SpeechSynthesisResponse> {
+    return this.createProvider().synthesize(input)
+  }
+
+  private createProvider(): SpeechProvider {
+    const settings = this.resolveSettings()
+    return new OpenAICompatibleSpeechProvider({
+      settings,
+      logger: this.logger.child({ provider: settings.provider }),
+    })
+  }
+
+  private resolveSettings(): NormalizedSpeechSettings {
+    const parsed = ServerSpeechSettingsSchema.parse(this.settings.getOwner("config", "server") ?? {})
+    const speech = parsed.speech ?? {}
+
+    return {
+      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,
+      sttModel: speech.sttModel?.trim() || DEFAULT_STT_MODEL,
+      ttsModel: speech.ttsModel?.trim() || DEFAULT_TTS_MODEL,
+      ttsVoice: speech.ttsVoice?.trim() || DEFAULT_TTS_VOICE,
+    }
+  }
+}

packages/ui/src/App.tsx

@@ -71,6 +71,7 @@ const App: Component = () => {
     toggleAutoCleanupBlankSessions,
     toggleUsageMetrics,
     togglePromptSubmitOnEnter,
+    toggleShowPromptVoiceInput,
     setDiffViewMode,
     setToolOutputExpansion,
     setDiagnosticsExpansion,
@@ -360,6 +361,7 @@ const App: Component = () => {
     toggleShowTimelineTools,
     toggleUsageMetrics,
     togglePromptSubmitOnEnter,
+    toggleShowPromptVoiceInput,
     setDiffViewMode,
     setToolOutputExpansion,
     setDiagnosticsExpansion,

packages/ui/src/components/prompt-input.tsx

@@ -1,5 +1,5 @@
 import { createSignal, Show, onMount, onCleanup, createEffect, on } from "solid-js"
-import { ArrowBigUp, ArrowBigDown } from "lucide-solid"
+import { ArrowBigUp, ArrowBigDown, Loader2, Mic } from "lucide-solid"
 import UnifiedPicker from "./unified-picker"
 import ExpandButton from "./expand-button"
 import { clearAttachments, removeAttachment } from "../stores/attachments"
@@ -17,6 +17,7 @@ import { usePromptState } from "./prompt-input/usePromptState"
 import { usePromptAttachments } from "./prompt-input/usePromptAttachments"
 import { usePromptPicker } from "./prompt-input/usePromptPicker"
 import { usePromptKeyDown } from "./prompt-input/usePromptKeyDown"
+import { usePromptVoiceInput } from "./prompt-input/usePromptVoiceInput"
 const log = getLogger("actions")
 
 export default function PromptInput(props: PromptInputProps) {
@@ -411,9 +412,45 @@ export default function PromptInput(props: PromptInputProps) {
   })
 
   const shouldShowOverlay = () => prompt().length === 0
+  const voiceInput = usePromptVoiceInput({
+    prompt,
+    setPrompt,
+    getTextarea: () => textareaRef ?? null,
+    enabled: () => preferences().showPromptVoiceInput,
+    disabled: () => Boolean(props.disabled),
+  })
+  const showVoiceInput = () =>
+    preferences().showPromptVoiceInput &&
+    (voiceInput.canUseVoiceInput() || voiceInput.isRecording() || voiceInput.isTranscribing())
 
   const instance = () => getActiveInstance()
 
+  let voiceButtonPressed = false
+
+  const beginVoicePress = (event?: PointerEvent | KeyboardEvent) => {
+    if (voiceButtonPressed || props.disabled || voiceInput.isTranscribing() || !voiceInput.canUseVoiceInput()) return
+    voiceButtonPressed = true
+
+    if (event instanceof PointerEvent) {
+      const target = event.currentTarget
+      if (target instanceof HTMLElement) {
+        try {
+          target.setPointerCapture(event.pointerId)
+        } catch {
+          // no-op
+        }
+      }
+    }
+
+    void voiceInput.startRecording()
+  }
+
+  const endVoicePress = () => {
+    if (!voiceButtonPressed) return
+    voiceButtonPressed = false
+    voiceInput.stopRecording()
+  }
+
   return (
     <div class="prompt-input-container">
       <div
@@ -555,6 +592,48 @@ export default function PromptInput(props: PromptInputProps) {
         </div>
 
         <div class="prompt-input-actions">
+          <Show when={showVoiceInput()}>
+            <button
+              type="button"
+              class={`prompt-voice-button ${voiceInput.isRecording() ? "is-recording" : ""}`}
+              onPointerDown={(event) => {
+                event.preventDefault()
+                beginVoicePress(event)
+              }}
+              onPointerUp={(event) => {
+                event.preventDefault()
+                endVoicePress()
+              }}
+              onPointerCancel={() => endVoicePress()}
+              onLostPointerCapture={() => endVoicePress()}
+              onKeyDown={(event) => {
+                if (event.repeat) return
+                if (event.key !== " " && event.key !== "Enter") return
+                event.preventDefault()
+                beginVoicePress(event)
+              }}
+              onKeyUp={(event) => {
+                if (event.key !== " " && event.key !== "Enter") return
+                event.preventDefault()
+                endVoicePress()
+              }}
+              onBlur={() => endVoicePress()}
+              disabled={!voiceInput.isRecording() && (props.disabled || voiceInput.isTranscribing() || !voiceInput.canUseVoiceInput())}
+              aria-label={voiceInput.buttonTitle()}
+              title={voiceInput.buttonTitle()}
+            >
+              <Show
+                when={voiceInput.isRecording()}
+                fallback={
+                  <Show when={voiceInput.isTranscribing()} fallback={<Mic class="h-4 w-4" aria-hidden="true" />}>
+                    <Loader2 class="h-4 w-4 animate-spin" aria-hidden="true" />
+                  </Show>
+                }
+              >
+                <span class="prompt-voice-timer">{formatVoiceTimer(voiceInput.elapsedMs())}</span>
+              </Show>
+            </button>
+          </Show>
           <button
             type="button"
             class="stop-button"
@@ -589,3 +668,10 @@ export default function PromptInput(props: PromptInputProps) {
     </div>
   )
 }
+
+function formatVoiceTimer(elapsedMs: number): string {
+  const totalSeconds = Math.max(0, Math.floor(elapsedMs / 1000))
+  const minutes = Math.floor(totalSeconds / 60)
+  const seconds = totalSeconds % 60
+  return `${String(minutes).padStart(2, "0")}:${String(seconds).padStart(2, "0")}`
+}

packages/ui/src/components/prompt-input/usePromptVoiceInput.ts

@@ -0,0 +1,244 @@
+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) => void
+  getTextarea: () => HTMLTextAreaElement | null
+  enabled: Accessor<boolean>
+  disabled: Accessor<boolean>
+}
+
+type VoiceInputState = "idle" | "recording" | "transcribing"
+
+export function usePromptVoiceInput(options: UsePromptVoiceInputOptions) {
+  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
+    }
+
+    await startRecording()
+  }
+
+  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 (!canUseVoiceInput() || options.disabled() || state() === "transcribing" || state() === "recording") return
+
+    if (!isSupported()) {
+      showAlertDialog(t("promptInput.voiceInput.error.unsupported"), {
+        title: t("promptInput.voiceInput.error.title"),
+        variant: "error",
+      })
+      return
+    }
+
+    try {
+      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()
+    } 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",
+      })
+    }
+  }
+
+  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,
+    elapsedMs,
+    canUseVoiceInput,
+    startRecording,
+    stopRecording,
+    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)
+}

packages/ui/src/components/settings-screen.tsx

@@ -1,5 +1,5 @@
 import { Dialog } from "@kobalte/core/dialog"
-import { Settings, Bell, MonitorUp, Paintbrush, Terminal, X } from "lucide-solid"
+import { Settings, Bell, MonitorUp, Paintbrush, Terminal, Volume2, X } from "lucide-solid"
 import { createMemo, For, type Component } from "solid-js"
 import { useI18n } from "../lib/i18n"
 import {
@@ -13,6 +13,7 @@ import { AppearanceSettingsSection } from "./settings/appearance-settings-sectio
 import { NotificationsSettingsSection } from "./settings/notifications-settings-section"
 import { OpenCodeSettingsSection } from "./settings/opencode-settings-section"
 import { RemoteAccessSettingsSection } from "./settings/remote-access-settings-section"
+import { SpeechSettingsSection } from "./settings/speech-settings-section"
 
 export const SettingsScreen: Component = () => {
   const { t } = useI18n()
@@ -21,6 +22,7 @@ export const SettingsScreen: Component = () => {
     { id: "appearance" as SettingsSectionId, icon: Paintbrush, label: t("settings.nav.appearance") },
     { id: "notifications" as SettingsSectionId, icon: Bell, label: t("settings.nav.notifications") },
     { id: "remote" as SettingsSectionId, icon: MonitorUp, label: t("settings.nav.remote") },
+    { id: "speech" as SettingsSectionId, icon: Volume2, label: t("settings.nav.speech") },
     { id: "opencode" as SettingsSectionId, icon: Terminal, label: t("settings.nav.opencode") },
   ])
 
@@ -30,6 +32,8 @@ export const SettingsScreen: Component = () => {
         return <NotificationsSettingsSection />
       case "remote":
         return <RemoteAccessSettingsSection />
+      case "speech":
+        return <SpeechSettingsSection />
       case "opencode":
         return <OpenCodeSettingsSection />
       case "appearance":

packages/ui/src/components/settings/appearance-settings-section.tsx

@@ -24,6 +24,7 @@ export const AppearanceSettingsSection: Component = () => {
     toggleUsageMetrics,
     toggleAutoCleanupBlankSessions,
     togglePromptSubmitOnEnter,
+    toggleShowPromptVoiceInput,
     setDiffViewMode,
     setToolOutputExpansion,
     setDiagnosticsExpansion,
@@ -38,10 +39,11 @@ export const AppearanceSettingsSection: Component = () => {
       toggleShowThinkingBlocks,
       toggleKeyboardShortcutHints,
       toggleShowTimelineTools,
-      toggleUsageMetrics,
+        toggleUsageMetrics,
-      toggleAutoCleanupBlankSessions,
+        toggleAutoCleanupBlankSessions,
-      togglePromptSubmitOnEnter,
+        togglePromptSubmitOnEnter,
-      setDiffViewMode,
+        toggleShowPromptVoiceInput,
+        setDiffViewMode,
       setToolOutputExpansion,
       setDiagnosticsExpansion,
       setThinkingBlocksExpansion,

packages/ui/src/components/settings/speech-settings-card.tsx

@@ -0,0 +1,217 @@
+import { createEffect, createMemo, createSignal, type Component } from "solid-js"
+import { Mic, Volume2 } from "lucide-solid"
+import { useConfig, type SpeechSettings } from "../../stores/preferences"
+import { useI18n } from "../../lib/i18n"
+import { loadSpeechCapabilities, speechCapabilities, speechCapabilitiesError, speechCapabilitiesLoading } from "../../stores/speech"
+import { getLogger } from "../../lib/logger"
+
+const log = getLogger("actions")
+
+type DraftFields = {
+  apiKey: string
+  baseUrl: string
+  sttModel: string
+  ttsModel: string
+  ttsVoice: string
+}
+
+function createDraftFields(speech: SpeechSettings): DraftFields {
+  return {
+    apiKey: speech.apiKey ?? "",
+    baseUrl: speech.baseUrl ?? "",
+    sttModel: speech.sttModel,
+    ttsModel: speech.ttsModel,
+    ttsVoice: speech.ttsVoice,
+  }
+}
+
+function isDraftEqual(a: DraftFields, b: DraftFields): boolean {
+  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 = () => {
+  const { t } = useI18n()
+  const { serverSettings, updateSpeechSettings } = useConfig()
+  const initialDrafts = createDraftFields(serverSettings().speech)
+  const [isSaving, setIsSaving] = createSignal(false)
+  const [saveStatus, setSaveStatus] = createSignal<"idle" | "saved" | "error">("saved")
+  const [drafts, setDrafts] = createSignal<DraftFields>(initialDrafts)
+
+  createEffect(() => {
+    const speech = serverSettings().speech
+    const nextDrafts = createDraftFields(speech)
+    if (!isSaving() && !isDirty()) {
+      if (!isDraftEqual(drafts(), nextDrafts)) {
+        setDrafts(nextDrafts)
+      }
+    }
+  })
+
+  createEffect(() => {
+    void loadSpeechCapabilities()
+  })
+
+  const capabilityLabel = () => {
+    if (speechCapabilitiesLoading()) return t("settings.speech.status.loading")
+    if (speechCapabilitiesError()) return t("settings.speech.status.error")
+    return speechCapabilities()?.configured ? t("settings.speech.status.configured") : t("settings.speech.status.missing")
+  }
+
+  const updateDraft = (key: keyof DraftFields, value: string) => {
+    setSaveStatus("idle")
+    setDrafts((current) => ({ ...current, [key]: value }))
+  }
+
+  const isDirty = createMemo(() => {
+    const speech = serverSettings().speech
+    const current = drafts()
+    return (
+      (current.apiKey || "") !== (speech.apiKey || "") ||
+      (current.baseUrl || "") !== (speech.baseUrl || "") ||
+      current.sttModel !== speech.sttModel ||
+      current.ttsModel !== speech.ttsModel ||
+      current.ttsVoice !== speech.ttsVoice
+    )
+  })
+
+  const saveStatusLabel = () => {
+    if (isSaving()) return t("settings.speech.save.saving")
+    if (saveStatus() === "saved") return t("settings.speech.save.saved")
+    if (saveStatus() === "error") return t("settings.speech.save.error")
+    return t("settings.speech.save.unsaved")
+  }
+
+  async function handleSave() {
+    if (!isDirty() || isSaving()) return
+    const current = drafts()
+    setIsSaving(true)
+    setSaveStatus("idle")
+    try {
+      await updateSpeechSettings({
+        apiKey: current.apiKey.trim() || undefined,
+        baseUrl: current.baseUrl.trim() || undefined,
+        sttModel: current.sttModel.trim() || undefined,
+        ttsModel: current.ttsModel.trim() || undefined,
+        ttsVoice: current.ttsVoice.trim() || undefined,
+      })
+      await loadSpeechCapabilities(true)
+      setDrafts({
+        apiKey: current.apiKey.trim(),
+        baseUrl: current.baseUrl.trim(),
+        sttModel: current.sttModel.trim() || serverSettings().speech.sttModel,
+        ttsModel: current.ttsModel.trim() || serverSettings().speech.ttsModel,
+        ttsVoice: current.ttsVoice.trim() || serverSettings().speech.ttsVoice,
+      })
+      setSaveStatus("saved")
+    } catch (error) {
+      log.error("Failed to save speech settings", error)
+      setSaveStatus("error")
+    } finally {
+      setIsSaving(false)
+    }
+  }
+
+  return (
+    <div class="settings-card">
+      <div class="settings-card-header">
+        <div class="settings-card-heading-with-icon">
+          <Volume2 class="settings-card-heading-icon" />
+          <div>
+            <h3 class="settings-card-title">{t("settings.speech.title")}</h3>
+            <p class="settings-card-subtitle">{t("settings.speech.subtitle")}</p>
+          </div>
+        </div>
+        <span class="settings-scope-badge settings-scope-badge-server">{t("settings.scope.server")}</span>
+      </div>
+
+      <div class="settings-stack">
+        <div class="settings-toggle-row settings-toggle-row-compact">
+          <div>
+            <div class="settings-toggle-title">{t("settings.speech.provider.title")}</div>
+            <div class="settings-toggle-caption">{t("settings.speech.provider.subtitle")}</div>
+          </div>
+          <div class="settings-toolbar-inline">
+            <span class="settings-inline-note">{t("settings.speech.provider.openaiCompatible")}</span>
+            <span class="settings-inline-note">{capabilityLabel()}</span>
+            <span class="settings-inline-note">{saveStatusLabel()}</span>
+            <button
+              type="button"
+              class="selector-button selector-button-primary w-auto whitespace-nowrap"
+              onClick={() => void handleSave()}
+              disabled={!isDirty() || isSaving()}
+            >
+              {isSaving() ? t("settings.speech.save.saving") : t("settings.speech.save.action")}
+            </button>
+          </div>
+        </div>
+
+        <Field
+          label={t("settings.speech.apiKey.title")}
+          caption={t("settings.speech.apiKey.subtitle")}
+          value={drafts().apiKey}
+          onInput={(value) => updateDraft("apiKey", value)}
+          type="password"
+        />
+        <Field
+          label={t("settings.speech.baseUrl.title")}
+          caption={t("settings.speech.baseUrl.subtitle")}
+          value={drafts().baseUrl}
+          onInput={(value) => updateDraft("baseUrl", value)}
+          placeholder={t("settings.speech.baseUrl.placeholder")}
+        />
+        <Field
+          label={t("settings.speech.sttModel.title")}
+          caption={t("settings.speech.sttModel.subtitle")}
+          value={drafts().sttModel}
+          onInput={(value) => updateDraft("sttModel", value)}
+        />
+        <Field
+          label={t("settings.speech.ttsModel.title")}
+          caption={t("settings.speech.ttsModel.subtitle")}
+          value={drafts().ttsModel}
+          onInput={(value) => updateDraft("ttsModel", value)}
+        />
+        <Field
+          label={t("settings.speech.ttsVoice.title")}
+          caption={t("settings.speech.ttsVoice.subtitle")}
+          value={drafts().ttsVoice}
+          onInput={(value) => updateDraft("ttsVoice", value)}
+          icon={<Mic class="w-3.5 h-3.5 icon-muted flex-shrink-0" />}
+        />
+
+        <div class="settings-inline-note">{t("settings.speech.help")}</div>
+      </div>
+    </div>
+  )
+}
+
+const Field: Component<{
+  label: string
+  caption: string
+  value: string
+  type?: string
+  placeholder?: string
+  onInput: (value: string) => void
+  icon?: any
+}> = (props) => {
+  return (
+    <div class="settings-toggle-row settings-toggle-row-compact">
+      <div>
+        <div class="settings-toggle-title">{props.label}</div>
+        <div class="settings-toggle-caption">{props.caption}</div>
+      </div>
+      <div class="flex items-center gap-2 min-w-[18rem] max-w-[24rem] w-full">
+        {props.icon}
+        <input
+          type={props.type ?? "text"}
+          value={props.value}
+          onInput={(event) => props.onInput(event.currentTarget.value)}
+          class="selector-input w-full"
+          placeholder={props.placeholder}
+        />
+      </div>
+    </div>
+  )
+}
+
+export default SpeechSettingsCard

packages/ui/src/components/settings/speech-settings-section.tsx

@@ -0,0 +1,10 @@
+import type { Component } from "solid-js"
+import SpeechSettingsCard from "./speech-settings-card"
+
+export const SpeechSettingsSection: Component = () => {
+  return (
+    <div class="settings-section-stack">
+      <SpeechSettingsCard />
+    </div>
+  )
+}

packages/ui/src/lib/api-client.ts

@@ -7,6 +7,9 @@ import type {
   FileSystemCreateFolderResponse,
   FileSystemListResponse,
   InstanceData,
+  SpeechCapabilitiesResponse,
+  SpeechSynthesisResponse,
+  SpeechTranscriptionResponse,
   ServerMeta,
   WorkspaceCreateRequest,
   WorkspaceDescriptor,
@@ -235,6 +238,27 @@ export const serverApi = {
       body: JSON.stringify({ path }),
     })
   },
+  fetchSpeechCapabilities(): Promise<SpeechCapabilitiesResponse> {
+    return request<SpeechCapabilitiesResponse>("/api/speech/capabilities")
+  },
+  transcribeAudio(payload: {
+    audioBase64: string
+    mimeType: string
+    filename?: string
+    language?: string
+    prompt?: string
+  }): Promise<SpeechTranscriptionResponse> {
+    return request<SpeechTranscriptionResponse>("/api/speech/transcribe", {
+      method: "POST",
+      body: JSON.stringify(payload),
+    })
+  },
+  synthesizeSpeech(payload: { text: string; format?: "mp3" | "wav" | "opus" }): Promise<SpeechSynthesisResponse> {
+    return request<SpeechSynthesisResponse>("/api/speech/synthesize", {
+      method: "POST",
+      body: JSON.stringify(payload),
+    })
+  },
   listFileSystem(path?: string, options?: { includeFiles?: boolean }): Promise<FileSystemListResponse> {
     const params = new URLSearchParams()
     if (path && path !== ".") {

packages/ui/src/lib/hooks/use-commands.ts

@@ -34,6 +34,7 @@ export interface UseCommandsOptions {
   toggleUsageMetrics: () => void
   toggleAutoCleanupBlankSessions: () => void
   togglePromptSubmitOnEnter: () => void
+  toggleShowPromptVoiceInput: () => void
   setDiffViewMode: (mode: "split" | "unified") => void
   setToolOutputExpansion: (mode: ExpansionPreference) => void
   setDiagnosticsExpansion: (mode: ExpansionPreference) => void
@@ -435,6 +436,7 @@ export function useCommands(options: UseCommandsOptions) {
       toggleUsageMetrics: options.toggleUsageMetrics,
       toggleAutoCleanupBlankSessions: options.toggleAutoCleanupBlankSessions,
       togglePromptSubmitOnEnter: options.togglePromptSubmitOnEnter,
+      toggleShowPromptVoiceInput: options.toggleShowPromptVoiceInput,
       setDiffViewMode: options.setDiffViewMode,
       setToolOutputExpansion: options.setToolOutputExpansion,
       setDiagnosticsExpansion: options.setDiagnosticsExpansion,

packages/ui/src/lib/i18n/messages/en/messaging.ts

@@ -138,4 +138,11 @@ export const messagingMessages = {
   "promptInput.send.ariaLabel": "Send message",
   "promptInput.send.errorFallback": "Failed to send message",
   "promptInput.send.errorTitle": "Send failed",
+  "promptInput.voiceInput.start.title": "Start voice input",
+  "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
+  "promptInput.voiceInput.transcribing.title": "Transcribing audio",
+  "promptInput.voiceInput.error.title": "Voice input failed",
+  "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.",
 } as const

packages/ui/src/lib/i18n/messages/en/settings.ts

@@ -65,6 +65,7 @@ export const settingsMessages = {
   "settings.nav.appearance": "Appearance",
   "settings.nav.notifications": "Notifications",
   "settings.nav.remote": "Remote Access",
+  "settings.nav.speech": "Speech",
   "settings.nav.opencode": "OpenCode",
   "settings.scope.device": "This device",
   "settings.scope.server": "Server setting",
@@ -137,6 +138,34 @@ export const settingsMessages = {
   "settings.behavior.usageMetrics.subtitle": "Show or hide token and cost stats for assistant messages.",
   "settings.behavior.autoCleanup.title": "Auto-cleanup blank sessions",
   "settings.behavior.autoCleanup.subtitle": "Automatically clean up blank sessions when creating new ones.",
+  "settings.behavior.promptVoiceInput.title": "Prompt voice input",
+  "settings.behavior.promptVoiceInput.subtitle": "Show the microphone control for speech-to-text prompt input when speech is configured.",
   "settings.behavior.promptSubmit.title": "Enter to submit",
   "settings.behavior.promptSubmit.subtitle": "Use Enter to submit prompts; Cmd/Ctrl+Enter inserts a new line.",
+  "settings.speech.title": "Speech",
+  "settings.speech.subtitle": "Configure speech-to-text now and text-to-speech groundwork for later features.",
+  "settings.speech.provider.title": "Provider",
+  "settings.speech.provider.subtitle": "Speech requests use the server-side speech adapter.",
+  "settings.speech.provider.openaiCompatible": "OpenAI-compatible",
+  "settings.speech.status.loading": "Checking configuration...",
+  "settings.speech.status.configured": "Configured",
+  "settings.speech.status.missing": "Missing API key",
+  "settings.speech.status.error": "Speech service unavailable",
+  "settings.speech.apiKey.title": "API key",
+  "settings.speech.apiKey.subtitle": "Used for CodeNomad-managed speech requests.",
+  "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.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 supported by this browser.",
+  "settings.speech.save.action": "Save",
+  "settings.speech.save.saving": "Saving...",
+  "settings.speech.save.saved": "Saved",
+  "settings.speech.save.unsaved": "Unsaved changes",
+  "settings.speech.save.error": "Save failed",
 } as const

packages/ui/src/lib/i18n/messages/es/messaging.ts

@@ -140,4 +140,11 @@ export const messagingMessages = {
   "promptInput.send.ariaLabel": "Enviar mensaje",
   "promptInput.send.errorFallback": "No se pudo enviar el mensaje",
   "promptInput.send.errorTitle": "Error al enviar",
+  "promptInput.voiceInput.start.title": "Start voice input",
+  "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
+  "promptInput.voiceInput.transcribing.title": "Transcribing audio",
+  "promptInput.voiceInput.error.title": "Voice input failed",
+  "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.",
 } as const

packages/ui/src/lib/i18n/messages/es/settings.ts

@@ -65,6 +65,7 @@ export const settingsMessages = {
   "settings.nav.appearance": "Appearance",
   "settings.nav.notifications": "Notifications",
   "settings.nav.remote": "Remote Access",
+  "settings.nav.speech": "Speech",
   "settings.nav.opencode": "OpenCode",
   "settings.scope.device": "This device",
   "settings.scope.server": "Server setting",
@@ -137,6 +138,34 @@ export const settingsMessages = {
   "settings.behavior.usageMetrics.subtitle": "Muestra u oculta estadisticas de tokens y costo en mensajes del asistente.",
   "settings.behavior.autoCleanup.title": "Limpieza automatica de sesiones en blanco",
   "settings.behavior.autoCleanup.subtitle": "Limpia automaticamente las sesiones en blanco al crear nuevas.",
+  "settings.behavior.promptVoiceInput.title": "Prompt voice input",
+  "settings.behavior.promptVoiceInput.subtitle": "Show the microphone control for speech-to-text prompt input when speech is configured.",
   "settings.behavior.promptSubmit.title": "Enter para enviar",
   "settings.behavior.promptSubmit.subtitle": "Usa Enter para enviar; Cmd/Ctrl+Enter inserta una nueva linea.",
+  "settings.speech.title": "Speech",
+  "settings.speech.subtitle": "Configure speech-to-text now and text-to-speech groundwork for later features.",
+  "settings.speech.provider.title": "Provider",
+  "settings.speech.provider.subtitle": "Speech requests use the server-side speech adapter.",
+  "settings.speech.provider.openaiCompatible": "OpenAI-compatible",
+  "settings.speech.status.loading": "Checking configuration...",
+  "settings.speech.status.configured": "Configured",
+  "settings.speech.status.missing": "Missing API key",
+  "settings.speech.status.error": "Speech service unavailable",
+  "settings.speech.apiKey.title": "API key",
+  "settings.speech.apiKey.subtitle": "Used for CodeNomad-managed speech requests.",
+  "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.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 supported by this browser.",
+  "settings.speech.save.action": "Save",
+  "settings.speech.save.saving": "Saving...",
+  "settings.speech.save.saved": "Saved",
+  "settings.speech.save.unsaved": "Unsaved changes",
+  "settings.speech.save.error": "Save failed",
 } as const

packages/ui/src/lib/i18n/messages/fr/messaging.ts

@@ -140,4 +140,11 @@ export const messagingMessages = {
   "promptInput.send.ariaLabel": "Envoyer le message",
   "promptInput.send.errorFallback": "Impossible d'envoyer le message",
   "promptInput.send.errorTitle": "Échec de l'envoi",
+  "promptInput.voiceInput.start.title": "Start voice input",
+  "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
+  "promptInput.voiceInput.transcribing.title": "Transcribing audio",
+  "promptInput.voiceInput.error.title": "Voice input failed",
+  "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.",
 } as const

packages/ui/src/lib/i18n/messages/fr/settings.ts

@@ -65,6 +65,7 @@ export const settingsMessages = {
   "settings.nav.appearance": "Appearance",
   "settings.nav.notifications": "Notifications",
   "settings.nav.remote": "Remote Access",
+  "settings.nav.speech": "Speech",
   "settings.nav.opencode": "OpenCode",
   "settings.scope.device": "This device",
   "settings.scope.server": "Server setting",
@@ -137,6 +138,34 @@ export const settingsMessages = {
   "settings.behavior.usageMetrics.subtitle": "Afficher ou masquer les stats de tokens et de cout pour les messages de l'assistant.",
   "settings.behavior.autoCleanup.title": "Nettoyage auto des sessions vides",
   "settings.behavior.autoCleanup.subtitle": "Nettoyer automatiquement les sessions vides lors de la creation de nouvelles.",
+  "settings.behavior.promptVoiceInput.title": "Prompt voice input",
+  "settings.behavior.promptVoiceInput.subtitle": "Show the microphone control for speech-to-text prompt input when speech is configured.",
   "settings.behavior.promptSubmit.title": "Entrer pour envoyer",
   "settings.behavior.promptSubmit.subtitle": "Utiliser Entrer pour envoyer; Cmd/Ctrl+Entrer insere une nouvelle ligne.",
+  "settings.speech.title": "Speech",
+  "settings.speech.subtitle": "Configure speech-to-text now and text-to-speech groundwork for later features.",
+  "settings.speech.provider.title": "Provider",
+  "settings.speech.provider.subtitle": "Speech requests use the server-side speech adapter.",
+  "settings.speech.provider.openaiCompatible": "OpenAI-compatible",
+  "settings.speech.status.loading": "Checking configuration...",
+  "settings.speech.status.configured": "Configured",
+  "settings.speech.status.missing": "Missing API key",
+  "settings.speech.status.error": "Speech service unavailable",
+  "settings.speech.apiKey.title": "API key",
+  "settings.speech.apiKey.subtitle": "Used for CodeNomad-managed speech requests.",
+  "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.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 supported by this browser.",
+  "settings.speech.save.action": "Save",
+  "settings.speech.save.saving": "Saving...",
+  "settings.speech.save.saved": "Saved",
+  "settings.speech.save.unsaved": "Unsaved changes",
+  "settings.speech.save.error": "Save failed",
 } as const

packages/ui/src/lib/i18n/messages/ja/messaging.ts

@@ -140,4 +140,11 @@ export const messagingMessages = {
   "promptInput.send.ariaLabel": "メッセージを送信",
   "promptInput.send.errorFallback": "メッセージの送信に失敗しました",
   "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.transcribing.title": "Transcribing audio",
+  "promptInput.voiceInput.error.title": "Voice input failed",
+  "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.",
 } as const

packages/ui/src/lib/i18n/messages/ja/settings.ts

@@ -65,6 +65,7 @@ export const settingsMessages = {
   "settings.nav.appearance": "Appearance",
   "settings.nav.notifications": "Notifications",
   "settings.nav.remote": "Remote Access",
+  "settings.nav.speech": "Speech",
   "settings.nav.opencode": "OpenCode",
   "settings.scope.device": "This device",
   "settings.scope.server": "Server setting",
@@ -137,6 +138,34 @@ export const settingsMessages = {
   "settings.behavior.usageMetrics.subtitle": "アシスタントのメッセージにトークン数とコストの統計を表示/非表示にします。",
   "settings.behavior.autoCleanup.title": "空のセッションを自動クリーンアップ",
   "settings.behavior.autoCleanup.subtitle": "新しいセッション作成時に空のセッションを自動的にクリーンアップします。",
+  "settings.behavior.promptVoiceInput.title": "Prompt voice input",
+  "settings.behavior.promptVoiceInput.subtitle": "Show the microphone control for speech-to-text prompt input when speech is configured.",
   "settings.behavior.promptSubmit.title": "Enterで送信",
   "settings.behavior.promptSubmit.subtitle": "Enterで送信し、Cmd/Ctrl+Enterで改行します。",
+  "settings.speech.title": "Speech",
+  "settings.speech.subtitle": "Configure speech-to-text now and text-to-speech groundwork for later features.",
+  "settings.speech.provider.title": "Provider",
+  "settings.speech.provider.subtitle": "Speech requests use the server-side speech adapter.",
+  "settings.speech.provider.openaiCompatible": "OpenAI-compatible",
+  "settings.speech.status.loading": "Checking configuration...",
+  "settings.speech.status.configured": "Configured",
+  "settings.speech.status.missing": "Missing API key",
+  "settings.speech.status.error": "Speech service unavailable",
+  "settings.speech.apiKey.title": "API key",
+  "settings.speech.apiKey.subtitle": "Used for CodeNomad-managed speech requests.",
+  "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.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 supported by this browser.",
+  "settings.speech.save.action": "Save",
+  "settings.speech.save.saving": "Saving...",
+  "settings.speech.save.saved": "Saved",
+  "settings.speech.save.unsaved": "Unsaved changes",
+  "settings.speech.save.error": "Save failed",
 } as const

packages/ui/src/lib/i18n/messages/ru/messaging.ts

@@ -140,4 +140,11 @@ export const messagingMessages = {
   "promptInput.send.ariaLabel": "Отправить сообщение",
   "promptInput.send.errorFallback": "Не удалось отправить сообщение",
   "promptInput.send.errorTitle": "Не удалось отправить",
+  "promptInput.voiceInput.start.title": "Start voice input",
+  "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
+  "promptInput.voiceInput.transcribing.title": "Transcribing audio",
+  "promptInput.voiceInput.error.title": "Voice input failed",
+  "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.",
 } as const

packages/ui/src/lib/i18n/messages/ru/settings.ts

@@ -65,6 +65,7 @@ export const settingsMessages = {
   "settings.nav.appearance": "Appearance",
   "settings.nav.notifications": "Notifications",
   "settings.nav.remote": "Remote Access",
+  "settings.nav.speech": "Speech",
   "settings.nav.opencode": "OpenCode",
   "settings.scope.device": "This device",
   "settings.scope.server": "Server setting",
@@ -137,6 +138,34 @@ export const settingsMessages = {
   "settings.behavior.usageMetrics.subtitle": "Показывать или скрывать статистику токенов и стоимости в сообщениях ассистента.",
   "settings.behavior.autoCleanup.title": "Автоочистка пустых сессий",
   "settings.behavior.autoCleanup.subtitle": "Автоматически очищать пустые сессии при создании новых.",
+  "settings.behavior.promptVoiceInput.title": "Prompt voice input",
+  "settings.behavior.promptVoiceInput.subtitle": "Show the microphone control for speech-to-text prompt input when speech is configured.",
   "settings.behavior.promptSubmit.title": "Enter для отправки",
   "settings.behavior.promptSubmit.subtitle": "Enter отправляет; Cmd/Ctrl+Enter вставляет новую строку.",
+  "settings.speech.title": "Speech",
+  "settings.speech.subtitle": "Configure speech-to-text now and text-to-speech groundwork for later features.",
+  "settings.speech.provider.title": "Provider",
+  "settings.speech.provider.subtitle": "Speech requests use the server-side speech adapter.",
+  "settings.speech.provider.openaiCompatible": "OpenAI-compatible",
+  "settings.speech.status.loading": "Checking configuration...",
+  "settings.speech.status.configured": "Configured",
+  "settings.speech.status.missing": "Missing API key",
+  "settings.speech.status.error": "Speech service unavailable",
+  "settings.speech.apiKey.title": "API key",
+  "settings.speech.apiKey.subtitle": "Used for CodeNomad-managed speech requests.",
+  "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.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 supported by this browser.",
+  "settings.speech.save.action": "Save",
+  "settings.speech.save.saving": "Saving...",
+  "settings.speech.save.saved": "Saved",
+  "settings.speech.save.unsaved": "Unsaved changes",
+  "settings.speech.save.error": "Save failed",
 } as const

packages/ui/src/lib/i18n/messages/zh-Hans/messaging.ts

@@ -140,4 +140,11 @@ export const messagingMessages = {
   "promptInput.send.ariaLabel": "发送消息",
   "promptInput.send.errorFallback": "发送消息失败",
   "promptInput.send.errorTitle": "发送失败",
+  "promptInput.voiceInput.start.title": "Start voice input",
+  "promptInput.voiceInput.stop.title": "Stop recording and transcribe",
+  "promptInput.voiceInput.transcribing.title": "Transcribing audio",
+  "promptInput.voiceInput.error.title": "Voice input failed",
+  "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.",
 } as const

packages/ui/src/lib/i18n/messages/zh-Hans/settings.ts

@@ -65,6 +65,7 @@ export const settingsMessages = {
   "settings.nav.appearance": "Appearance",
   "settings.nav.notifications": "Notifications",
   "settings.nav.remote": "Remote Access",
+  "settings.nav.speech": "Speech",
   "settings.nav.opencode": "OpenCode",
   "settings.scope.device": "This device",
   "settings.scope.server": "Server setting",
@@ -137,6 +138,34 @@ export const settingsMessages = {
   "settings.behavior.usageMetrics.subtitle": "显示或隐藏助手消息的令牌与成本统计。",
   "settings.behavior.autoCleanup.title": "自动清理空会话",
   "settings.behavior.autoCleanup.subtitle": "创建新会话时自动清理空会话。",
+  "settings.behavior.promptVoiceInput.title": "Prompt voice input",
+  "settings.behavior.promptVoiceInput.subtitle": "Show the microphone control for speech-to-text prompt input when speech is configured.",
   "settings.behavior.promptSubmit.title": "回车发送",
   "settings.behavior.promptSubmit.subtitle": "使用回车发送；Cmd/Ctrl+回车插入新行。",
+  "settings.speech.title": "Speech",
+  "settings.speech.subtitle": "Configure speech-to-text now and text-to-speech groundwork for later features.",
+  "settings.speech.provider.title": "Provider",
+  "settings.speech.provider.subtitle": "Speech requests use the server-side speech adapter.",
+  "settings.speech.provider.openaiCompatible": "OpenAI-compatible",
+  "settings.speech.status.loading": "Checking configuration...",
+  "settings.speech.status.configured": "Configured",
+  "settings.speech.status.missing": "Missing API key",
+  "settings.speech.status.error": "Speech service unavailable",
+  "settings.speech.apiKey.title": "API key",
+  "settings.speech.apiKey.subtitle": "Used for CodeNomad-managed speech requests.",
+  "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.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 supported by this browser.",
+  "settings.speech.save.action": "Save",
+  "settings.speech.save.saving": "Saving...",
+  "settings.speech.save.saved": "Saved",
+  "settings.speech.save.unsaved": "Unsaved changes",
+  "settings.speech.save.error": "Save failed",
 } as const

packages/ui/src/lib/settings/behavior-registry.ts

@@ -42,6 +42,7 @@ export type BehaviorRegistryActions = {
   toggleUsageMetrics: () => void
   toggleAutoCleanupBlankSessions: () => void
   togglePromptSubmitOnEnter: () => void
+  toggleShowPromptVoiceInput: () => void
   setDiffViewMode: (mode: "split" | "unified") => void
   setToolOutputExpansion: (mode: ExpansionPreference) => void
   setDiagnosticsExpansion: (mode: ExpansionPreference) => void
@@ -248,6 +249,24 @@ export function getBehaviorSettings(actions: BehaviorRegistryActions): BehaviorS
         )
       },
     },
+    {
+      kind: "toggle",
+      id: "behavior.promptVoiceInput",
+      titleKey: "settings.behavior.promptVoiceInput.title",
+      subtitleKey: "settings.behavior.promptVoiceInput.subtitle",
+      get: (p) => Boolean(p.showPromptVoiceInput ?? true),
+      set: (next) => {
+        if (updatePreferences) {
+          updatePreferences({ showPromptVoiceInput: next })
+          return
+        }
+        setBooleanByToggle(
+          () => Boolean(prefs().showPromptVoiceInput ?? true),
+          actions.toggleShowPromptVoiceInput,
+          next,
+        )
+      },
+    },
     {
       kind: "toggle",
       id: "behavior.promptSubmitOnEnter",

packages/ui/src/stores/preferences.tsx

@@ -7,6 +7,7 @@ import {
   updateInstanceConfig as updateInstanceData,
 } from "./instance-config"
 import { getLogger } from "../lib/logger"
+import { loadSpeechCapabilities, resetSpeechCapabilities } from "./speech"
 
 const log = getLogger("actions")
 
@@ -27,6 +28,16 @@ export type DiffViewMode = "split" | "unified"
 export type ExpansionPreference = "expanded" | "collapsed"
 export type ToolInputsVisibilityPreference = "hidden" | "collapsed" | "expanded"
 export type ListeningMode = "local" | "all"
+export type SpeechProviderPreference = "openai-compatible"
+
+export interface SpeechSettings {
+  provider: SpeechProviderPreference
+  apiKey?: string
+  baseUrl?: string
+  sttModel: string
+  ttsModel: string
+  ttsVoice: string
+}
 
 export interface UiSettings {
   showThinkingBlocks: boolean
@@ -34,6 +45,7 @@ export interface UiSettings {
   thinkingBlocksExpansion: ExpansionPreference
   showTimelineTools: boolean
   promptSubmitOnEnter: boolean
+  showPromptVoiceInput: boolean
   locale?: string
   diffViewMode: DiffViewMode
   toolOutputExpansion: ExpansionPreference
@@ -75,6 +87,7 @@ interface ServerConfigBucket {
   listeningMode?: ListeningMode
   environmentVariables?: Record<string, string>
   opencodeBinary?: string
+  speech?: Partial<SpeechSettings>
 }
 
 interface UiStateBucket {
@@ -107,6 +120,7 @@ const defaultUiSettings: UiSettings = {
   thinkingBlocksExpansion: "expanded",
   showTimelineTools: true,
   promptSubmitOnEnter: false,
+  showPromptVoiceInput: true,
   diffViewMode: "split",
   toolOutputExpansion: "expanded",
   diagnosticsExpansion: "expanded",
@@ -120,6 +134,13 @@ const defaultUiSettings: UiSettings = {
   notifyOnIdle: true,
 }
 
+const defaultSpeechSettings: SpeechSettings = {
+  provider: "openai-compatible",
+  sttModel: "gpt-4o-mini-transcribe",
+  ttsModel: "gpt-4o-mini-tts",
+  ttsVoice: "alloy",
+}
+
 function normalizeUiSettings(input?: Partial<UiSettings> | null): UiSettings {
   const sanitized = input ?? {}
   return {
@@ -129,6 +150,7 @@ function normalizeUiSettings(input?: Partial<UiSettings> | null): UiSettings {
     thinkingBlocksExpansion: sanitized.thinkingBlocksExpansion ?? defaultUiSettings.thinkingBlocksExpansion,
     showTimelineTools: sanitized.showTimelineTools ?? defaultUiSettings.showTimelineTools,
     promptSubmitOnEnter: sanitized.promptSubmitOnEnter ?? defaultUiSettings.promptSubmitOnEnter,
+    showPromptVoiceInput: sanitized.showPromptVoiceInput ?? defaultUiSettings.showPromptVoiceInput,
     locale: sanitized.locale ?? defaultUiSettings.locale,
     diffViewMode: sanitized.diffViewMode ?? defaultUiSettings.diffViewMode,
     toolOutputExpansion: sanitized.toolOutputExpansion ?? defaultUiSettings.toolOutputExpansion,
@@ -156,6 +178,27 @@ function normalizeRecord(value: unknown): Record<string, string> {
   return out
 }
 
+function normalizeSpeechSettings(input?: Partial<SpeechSettings> | null): SpeechSettings {
+  const sanitized = input ?? {}
+  return {
+    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,
+    sttModel:
+      typeof sanitized.sttModel === "string" && sanitized.sttModel.trim()
+        ? sanitized.sttModel.trim()
+        : defaultSpeechSettings.sttModel,
+    ttsModel:
+      typeof sanitized.ttsModel === "string" && sanitized.ttsModel.trim()
+        ? sanitized.ttsModel.trim()
+        : defaultSpeechSettings.ttsModel,
+    ttsVoice:
+      typeof sanitized.ttsVoice === "string" && sanitized.ttsVoice.trim()
+        ? sanitized.ttsVoice.trim()
+        : defaultSpeechSettings.ttsVoice,
+  }
+}
+
 function cloneArray<T>(value: unknown, mapper: (item: any) => T | null): T[] {
   if (!Array.isArray(value)) return []
   const out: T[] = []
@@ -206,12 +249,15 @@ function normalizeUiState(input?: UiStateBucket | null): NormalizedUiState {
   }
 }
 
-function normalizeServerConfig(input?: ServerConfigBucket | null): Required<Pick<ServerConfigBucket, "listeningMode" | "environmentVariables" | "opencodeBinary">> {
+function normalizeServerConfig(
+  input?: ServerConfigBucket | null,
+): Required<Pick<ServerConfigBucket, "listeningMode" | "environmentVariables" | "opencodeBinary">> & { speech: SpeechSettings } {
   const source = input ?? {}
   const listeningMode = source.listeningMode === "all" ? "all" : "local"
   const opencodeBinary = typeof source.opencodeBinary === "string" && source.opencodeBinary.trim() ? source.opencodeBinary : "opencode"
   const environmentVariables = normalizeRecord(source.environmentVariables)
-  return { listeningMode, opencodeBinary, environmentVariables }
+  const speech = normalizeSpeechSettings(source.speech)
+  return { listeningMode, opencodeBinary, environmentVariables, speech }
 }
 
 function getModelKey(model: { providerId: string; modelId: string }): string {
@@ -342,6 +388,16 @@ function updateLastUsedBinary(path: string): void {
   void patchStateOwner("ui", { opencodeBinaries: nextList }).catch((error) => log.error("Failed to update binary list", error))
 }
 
+async function updateSpeechSettings(updates: Partial<SpeechSettings>): Promise<void> {
+  const next = normalizeSpeechSettings({ ...serverSettings().speech, ...updates })
+  try {
+    await patchConfigOwner("server", { speech: next })
+  } catch (error) {
+    log.error("Failed to update speech settings", error)
+    throw error
+  }
+}
+
 function addOpenCodeBinary(path: string, version?: string): void {
   const nextList = buildBinaryList(path, version, opencodeBinaries())
   void patchStateOwner("ui", { opencodeBinaries: nextList }).catch((error) => log.error("Failed to add binary", error))
@@ -476,6 +532,10 @@ function togglePromptSubmitOnEnter(): void {
   updateUiSettings({ promptSubmitOnEnter: !preferences().promptSubmitOnEnter })
 }
 
+function toggleShowPromptVoiceInput(): void {
+  updateUiSettings({ showPromptVoiceInput: !preferences().showPromptVoiceInput })
+}
+
 function toggleAutoCleanupBlankSessions(): void {
   const nextValue = !preferences().autoCleanupBlankSessions
   log.info("toggle auto cleanup", { value: nextValue })
@@ -521,6 +581,7 @@ interface ConfigContextValue {
   addEnvironmentVariable: typeof addEnvironmentVariable
   removeEnvironmentVariable: typeof removeEnvironmentVariable
   updateLastUsedBinary: typeof updateLastUsedBinary
+  updateSpeechSettings: typeof updateSpeechSettings
 
   // ui-owned state
   recentFolders: typeof recentFolders
@@ -544,6 +605,7 @@ interface ConfigContextValue {
   toggleUsageMetrics: typeof toggleUsageMetrics
   toggleAutoCleanupBlankSessions: typeof toggleAutoCleanupBlankSessions
   togglePromptSubmitOnEnter: typeof togglePromptSubmitOnEnter
+  toggleShowPromptVoiceInput: typeof toggleShowPromptVoiceInput
   setDiffViewMode: typeof setDiffViewMode
   setToolOutputExpansion: typeof setToolOutputExpansion
   setDiagnosticsExpansion: typeof setDiagnosticsExpansion
@@ -569,6 +631,7 @@ const configContextValue: ConfigContextValue = {
   addEnvironmentVariable,
   removeEnvironmentVariable,
   updateLastUsedBinary,
+  updateSpeechSettings,
   recentFolders,
   opencodeBinaries,
   uiState,
@@ -588,6 +651,7 @@ const configContextValue: ConfigContextValue = {
   toggleUsageMetrics,
   toggleAutoCleanupBlankSessions,
   togglePromptSubmitOnEnter,
+  toggleShowPromptVoiceInput,
   setDiffViewMode,
   setToolOutputExpansion,
   setDiagnosticsExpansion,
@@ -610,6 +674,8 @@ export const ConfigProvider: ParentComponent = (props) => {
     const unsubServer = storage.onConfigOwnerChanged("server", (bucket) => {
       setServerConfigBucket(bucket as any)
       setIsLoaded(true)
+      resetSpeechCapabilities()
+      void loadSpeechCapabilities(true)
     })
     const unsubStateUi = storage.onStateOwnerChanged("ui", (bucket) => {
       setUiStateBucket(bucket as any)
@@ -648,6 +714,7 @@ export {
   addEnvironmentVariable,
   removeEnvironmentVariable,
   updateLastUsedBinary,
+  updateSpeechSettings,
   addRecentFolder,
   removeRecentFolder,
   addOpenCodeBinary,
@@ -664,6 +731,7 @@ export {
   toggleUsageMetrics,
   toggleAutoCleanupBlankSessions,
   togglePromptSubmitOnEnter,
+  toggleShowPromptVoiceInput,
   setDiffViewMode,
   setToolOutputExpansion,
   setDiagnosticsExpansion,

packages/ui/src/stores/settings-screen.ts

@@ -1,6 +1,6 @@
 import { createSignal } from "solid-js"
 
-export type SettingsSectionId = "appearance" | "notifications" | "remote" | "opencode"
+export type SettingsSectionId = "appearance" | "notifications" | "remote" | "speech" | "opencode"
 
 const [settingsOpen, setSettingsOpen] = createSignal(false)
 const [activeSettingsSection, setActiveSettingsSection] = createSignal<SettingsSectionId>("appearance")

packages/ui/src/stores/speech.ts

@@ -0,0 +1,46 @@
+import { createSignal } from "solid-js"
+import type { SpeechCapabilitiesResponse } from "../../../server/src/api-types"
+import { serverApi } from "../lib/api-client"
+import { getLogger } from "../lib/logger"
+
+const log = getLogger("api")
+
+const [speechCapabilities, setSpeechCapabilities] = createSignal<SpeechCapabilitiesResponse | null>(null)
+const [speechCapabilitiesLoading, setSpeechCapabilitiesLoading] = createSignal(false)
+const [speechCapabilitiesError, setSpeechCapabilitiesError] = createSignal<string | null>(null)
+
+let speechCapabilitiesPromise: Promise<SpeechCapabilitiesResponse | null> | null = null
+
+async function loadSpeechCapabilities(force = false): Promise<SpeechCapabilitiesResponse | null> {
+  if (!force && speechCapabilities()) return speechCapabilities()
+  if (speechCapabilitiesPromise) return speechCapabilitiesPromise
+
+  setSpeechCapabilitiesLoading(true)
+  setSpeechCapabilitiesError(null)
+  speechCapabilitiesPromise = serverApi
+    .fetchSpeechCapabilities()
+    .then((result) => {
+      setSpeechCapabilities(result)
+      setSpeechCapabilitiesError(null)
+      return result
+    })
+    .catch((error) => {
+      log.error("Failed to load speech capabilities", error)
+      setSpeechCapabilities(null)
+      setSpeechCapabilitiesError(error instanceof Error ? error.message : String(error))
+      return null
+    })
+    .finally(() => {
+      setSpeechCapabilitiesLoading(false)
+      speechCapabilitiesPromise = null
+    })
+
+  return speechCapabilitiesPromise
+}
+
+function resetSpeechCapabilities(): void {
+  setSpeechCapabilities(null)
+  setSpeechCapabilitiesError(null)
+}
+
+export { speechCapabilities, speechCapabilitiesLoading, speechCapabilitiesError, loadSpeechCapabilities, resetSpeechCapabilities }

packages/ui/src/styles/messaging/prompt-input.css

@@ -170,6 +170,41 @@
   color: var(--button-danger-text, var(--text-inverted, #ffffff));
 }
 
+.prompt-voice-button {
+  @apply h-10 rounded-md border-none cursor-pointer flex items-center justify-center transition-all flex-shrink-0;
+  min-width: 2.5rem;
+  background-color: color-mix(in oklab, var(--surface-secondary) 82%, var(--surface-base));
+  color: var(--text-secondary);
+}
+
+.prompt-voice-button:hover:not(:disabled) {
+  color: var(--text-primary);
+  background-color: color-mix(in oklab, var(--accent-primary) 12%, var(--surface-secondary));
+  @apply scale-105;
+}
+
+.prompt-voice-button:active:not(:disabled) {
+  @apply scale-95;
+}
+
+.prompt-voice-button.is-recording {
+  min-width: 3.5rem;
+  background-color: color-mix(in oklab, var(--button-danger-bg, rgba(239, 68, 68, 0.85)) 88%, white 12%);
+  color: var(--button-danger-text, var(--text-inverted, #ffffff));
+}
+
+.prompt-voice-button:disabled {
+  @apply opacity-50 cursor-not-allowed;
+}
+
+.prompt-voice-timer {
+  font-size: 0.68rem;
+  font-variant-numeric: tabular-nums;
+  font-weight: 600;
+  line-height: 1;
+  color: currentColor;
+}
+
 .stop-button:hover:not(:disabled) {
   background-color: var(--button-danger-hover-bg, rgba(239, 68, 68, 0.9));
   @apply opacity-95 scale-105;