diff --git a/apps/stage-tamagotchi/src/renderer/components/InteractiveArea.vue b/apps/stage-tamagotchi/src/renderer/components/InteractiveArea.vue
index 0271cf118..620e4d9d6 100644
--- a/apps/stage-tamagotchi/src/renderer/components/InteractiveArea.vue
+++ b/apps/stage-tamagotchi/src/renderer/components/InteractiveArea.vue
@@ -3,6 +3,7 @@ import type { ChatToolCallRendererRegistry } from '@proj-airi/stage-ui/component
 import type { ChatHistoryItem } from '@proj-airi/stage-ui/types/chat'
 
 import { errorMessageFrom } from '@moeru/std'
+import { useStopSpeakingButton } from '@proj-airi/stage-layouts/composables/useStopSpeakingButton'
 import { ChatHistory, JournalPreviewModal } from '@proj-airi/stage-ui/components'
 import { useBackgroundStore } from '@proj-airi/stage-ui/stores/background'
 import { useChatOrchestratorStore } from '@proj-airi/stage-ui/stores/chat'
@@ -56,6 +57,7 @@ const sendModeLabels = computed<Record<SendMode, string>>(() => ({
   'ctrl-enter': t('stage.send-mode.ctrl-enter'),
   'double-enter': t('stage.send-mode.double-enter'),
 }))
+const { showStopSpeakingButton, stopSpeakingFromChat } = useStopSpeakingButton()
 
 const latestImageEntries = computed(() => {
   if (!activeCardId.value)
@@ -322,6 +324,24 @@ async function handleRetryMessage(index: number) {
         </DropdownMenuPortal>
       </DropdownMenuRoot>
 
+      <button
+        v-if="showStopSpeakingButton"
+        data-testid="stop-speaking-button"
+        :class="[
+          'max-h-[10lh] min-h-[1lh]',
+        ]"
+        bg="neutral-100 dark:neutral-800"
+        text="lg neutral-500 dark:neutral-400"
+        hover:text="primary-500 dark:primary-400"
+        flex items-center justify-center rounded-md p-2 outline-none
+        transition-colors transition-transform active:scale-95
+        title="Stop speaking"
+        aria-label="Stop speaking"
+        @click="stopSpeakingFromChat"
+      >
+        <div class="i-solar:stop-circle-bold-duotone" />
+      </button>
+
       <button
         :class="[
           'max-h-[10lh] min-h-[1lh]',
diff --git a/packages/stage-layouts/src/components/Layouts/MobileInteractiveArea.vue b/packages/stage-layouts/src/components/Layouts/MobileInteractiveArea.vue
index 71598fd40..3440524fc 100644
--- a/packages/stage-layouts/src/components/Layouts/MobileInteractiveArea.vue
+++ b/packages/stage-layouts/src/components/Layouts/MobileInteractiveArea.vue
@@ -28,6 +28,7 @@ import IndicatorMicVolume from '../Widgets/IndicatorMicVolume.vue'
 import ActionAbout from './InteractiveArea/Actions/About.vue'
 
 import { useTranscriptions } from '../../composables/use-transcriptions'
+import { useStopSpeakingButton } from '../../composables/useStopSpeakingButton'
 import { BackgroundDialogPicker } from '../Backgrounds'
 
 const { isDark, toggleDark } = useTheme()
@@ -76,6 +77,7 @@ const { isListening, startStreamingTranscription, stopStreamingTranscription } =
     isStageTamagotchi,
   },
 )
+const { showStopSpeakingButton, stopSpeakingFromChat } = useStopSpeakingButton()
 const toggleTranscription = () => isListening.value ? stopStreamingTranscription() : startStreamingTranscription()
 
 async function handleSubmit() {
@@ -253,6 +255,19 @@ onMounted(() => {
           @compositionstart="isComposing = true"
           @compositionend="isComposing = false"
         />
+        <button
+          v-if="showStopSpeakingButton"
+          data-testid="stop-speaking-button"
+          w="[calc(1lh+4px+4px)]" h="[calc(1lh+4px+4px)]" aspect-square flex items-center self-end justify-center rounded-full outline-none backdrop-blur-md
+          text="neutral-500 hover:primary-600 dark:neutral-900 dark:hover:primary-700"
+          bg="primary-50/80 dark:neutral-100/80 hover:neutral-50"
+          transition="all duration-250 ease-in-out"
+          title="Stop speaking"
+          aria-label="Stop speaking"
+          @click="stopSpeakingFromChat"
+        >
+          <div i-solar:stop-circle-bold-duotone />
+        </button>
         <button
           v-if="messageInput.trim() || isComposing"
           w="[calc(1lh+4px+4px)]" h="[calc(1lh+4px+4px)]" aspect-square flex items-center self-end justify-center rounded-full outline-none backdrop-blur-md