diff --git a/apps/stage-tamagotchi/src/renderer/components/stage-islands/controls-island/controls-island-profile-picker.vue b/apps/stage-tamagotchi/src/renderer/components/stage-islands/controls-island/controls-island-profile-picker.vue
new file mode 100644
index 000000000..2a1f30c94
--- /dev/null
+++ b/apps/stage-tamagotchi/src/renderer/components/stage-islands/controls-island/controls-island-profile-picker.vue
@@ -0,0 +1,20 @@
+<script setup lang="ts">
+import { useElectronEventaInvoke } from '@proj-airi/electron-vueuse'
+import { ProfileSwitcherPopover } from '@proj-airi/stage-ui/components'
+
+import { electronOpenSettings } from '../../../../shared/eventa'
+
+const openSettings = useElectronEventaInvoke(electronOpenSettings)
+
+function handleNavigation() {
+  openSettings({ route: '/settings/airi-card' })
+}
+</script>
+
+<template>
+  <ProfileSwitcherPopover placement="up" @create="handleNavigation" @manage="handleNavigation">
+    <template #default="{ open, toggle, activeCard }">
+      <slot :open="open" :toggle="toggle" :active-card="activeCard" />
+    </template>
+  </ProfileSwitcherPopover>
+</template>
diff --git a/apps/stage-tamagotchi/src/renderer/components/stage-islands/controls-island/index.vue b/apps/stage-tamagotchi/src/renderer/components/stage-islands/controls-island/index.vue
index 3005d1250..7d9391f06 100644
--- a/apps/stage-tamagotchi/src/renderer/components/stage-islands/controls-island/index.vue
+++ b/apps/stage-tamagotchi/src/renderer/components/stage-islands/controls-island/index.vue
@@ -12,6 +12,7 @@ import ControlButtonTooltip from './control-button-tooltip.vue'
 import ControlButton from './control-button.vue'
 import ControlsIslandFadeOnHover from './controls-island-fade-on-hover.vue'
 import ControlsIslandHearingConfig from './controls-island-hearing-config.vue'
+import ControlsIslandProfilePicker from './controls-island-profile-picker.vue'
 import IndicatorMicVolume from './indicator-mic-volume.vue'
 
 import {
@@ -128,6 +129,19 @@ function refreshWindow() {
               </template>
             </ControlButtonTooltip>
 
+            <ControlButtonTooltip disable-hoverable-content>
+              <ControlsIslandProfilePicker>
+                <template #default="{ toggle }">
+                  <ControlButton :button-style="adjustStyleClasses.button" @click="toggle">
+                    <div i-solar:emoji-funny-square-broken :class="adjustStyleClasses.icon" text="neutral-800 dark:neutral-300" />
+                  </ControlButton>
+                </template>
+              </ControlsIslandProfilePicker>
+              <template #tooltip>
+                {{ t('tamagotchi.stage.controls-island.switch-profile') }}
+              </template>
+            </ControlButtonTooltip>
+
             <ControlButtonTooltip disable-hoverable-content>
               <ControlButton :button-style="adjustStyleClasses.button" @click="openChat">
                 <div i-solar:chat-line-line-duotone :class="adjustStyleClasses.icon" text="neutral-800 dark:neutral-300" />
diff --git a/packages/i18n/src/locales/en/settings.yaml b/packages/i18n/src/locales/en/settings.yaml
index 189563441..9cea061ff 100644
--- a/packages/i18n/src/locales/en/settings.yaml
+++ b/packages/i18n/src/locales/en/settings.yaml
@@ -180,6 +180,7 @@ pages:
     scenario: Scenario
     search: Search cards...
     sort_by: Sort by
+    body-model: Body / Display Model
     speech:
       provider: Speech / Provider
       model: Speech / Model
diff --git a/packages/i18n/src/locales/en/stage.yaml b/packages/i18n/src/locales/en/stage.yaml
index b847a87a5..4f3b03744 100644
--- a/packages/i18n/src/locales/en/stage.yaml
+++ b/packages/i18n/src/locales/en/stage.yaml
@@ -30,4 +30,9 @@ viewers:
       camera: Camera
       model:
         title: Model
+profile-switcher:
+  no-profile: No Profile
+  no-profiles: No profiles yet
+  save-as-new: Save as New Profile
+  manage: Manage Profiles
 waiting: Waiting
diff --git a/packages/i18n/src/locales/en/tamagotchi/stage.yaml b/packages/i18n/src/locales/en/tamagotchi/stage.yaml
index a193abe8e..5171efb6d 100644
--- a/packages/i18n/src/locales/en/tamagotchi/stage.yaml
+++ b/packages/i18n/src/locales/en/tamagotchi/stage.yaml
@@ -21,6 +21,7 @@ docs:
   'switch-to-dark-mode': Switch to dark mode
   'pin-on-top': Pin on top
   'unpin-from-top': Unpin from top
+  'switch-profile': Switch Profile
   'close': Close
   'expand': Expand
   'collapse': Collapse
diff --git a/packages/i18n/src/locales/vi/tamagotchi/electron/tray.yaml b/packages/i18n/src/locales/vi/tamagotchi/electron/tray.yaml
index 76c451d58..29ed05942 100644
--- a/packages/i18n/src/locales/vi/tamagotchi/electron/tray.yaml
+++ b/packages/i18n/src/locales/vi/tamagotchi/electron/tray.yaml
@@ -21,7 +21,7 @@ menu:
       close_caption: Close Caption...
       caption_overlay: Lớp phủ phụ đề
       follow_window: Theo cửa sổ
-      reset_position: Đặt lại vị trí 
+      reset_position: Đặt lại vị trí
       devtools: Công cụ phát triển
       troubleshoot_beatsync: Sửa lỗi BeatSync...
       quit: Thoát ra
diff --git a/packages/i18n/src/locales/zh-Hans/settings.yaml b/packages/i18n/src/locales/zh-Hans/settings.yaml
index 7b3e61290..679fcc696 100644
--- a/packages/i18n/src/locales/zh-Hans/settings.yaml
+++ b/packages/i18n/src/locales/zh-Hans/settings.yaml
@@ -172,6 +172,7 @@ pages:
     scenario: 场景
     search: 搜索角色卡...
     sort_by: 排序方式
+    body-model: 形体 / 显示模型
     speech:
       provider: 语音 / 提供商
       model: 声音 / 模型
diff --git a/packages/i18n/src/locales/zh-Hans/stage.yaml b/packages/i18n/src/locales/zh-Hans/stage.yaml
index cafb448c5..8d1239749 100644
--- a/packages/i18n/src/locales/zh-Hans/stage.yaml
+++ b/packages/i18n/src/locales/zh-Hans/stage.yaml
@@ -30,4 +30,9 @@ viewers:
       camera: 摄像机
       model:
         title: 模型
+profile-switcher:
+  no-profile: 无配置
+  no-profiles: 暂无配置，点击上方按钮创建
+  save-as-new: 保存为新配置
+  manage: 管理配置
 waiting: 等待中
diff --git a/packages/i18n/src/locales/zh-Hans/tamagotchi/stage.yaml b/packages/i18n/src/locales/zh-Hans/tamagotchi/stage.yaml
index 3088d7b38..c5282b25c 100644
--- a/packages/i18n/src/locales/zh-Hans/tamagotchi/stage.yaml
+++ b/packages/i18n/src/locales/zh-Hans/tamagotchi/stage.yaml
@@ -21,6 +21,7 @@ docs:
   'switch-to-dark-mode': 切换到暗色模式
   'pin-on-top': 置顶显示
   'unpin-from-top': 取消置顶
+  'switch-profile': 切换配置
   'close': 关闭
   'expand': 展开
   'collapse': 折叠
diff --git a/packages/stage-layouts/src/components/Layouts/Header.vue b/packages/stage-layouts/src/components/Layouts/Header.vue
index d90fe4036..489601c20 100644
--- a/packages/stage-layouts/src/components/Layouts/Header.vue
+++ b/packages/stage-layouts/src/components/Layouts/Header.vue
@@ -1,13 +1,23 @@
 <script setup lang="ts">
+import { ProfileSwitcherPopover } from '@proj-airi/stage-ui/components'
+import { useRouter } from 'vue-router'
+
 import HeaderAvatar from './HeaderAvatar.vue'
 import HeaderLink from './HeaderLink.vue'
 import ActionAbout from './InteractiveArea/Actions/About.vue'
+
+const router = useRouter()
+
+function handleNavigation() {
+  router.push('/settings/airi-card')
+}
 </script>
 
 <template>
   <header mb-1 w-full flex items-center justify-between gap-2>
     <HeaderLink />
     <div flex items-center gap-2>
+      <ProfileSwitcherPopover @create="handleNavigation" @manage="handleNavigation" />
       <ActionAbout />
       <HeaderAvatar />
     </div>
diff --git a/packages/stage-pages/src/pages/settings/airi-card/components/CardCreationDialog.vue b/packages/stage-pages/src/pages/settings/airi-card/components/CardCreationDialog.vue
index eab34a7de..7d4907c7e 100644
--- a/packages/stage-pages/src/pages/settings/airi-card/components/CardCreationDialog.vue
+++ b/packages/stage-pages/src/pages/settings/airi-card/components/CardCreationDialog.vue
@@ -4,10 +4,12 @@ import type { AiriExtension } from '@proj-airi/stage-ui/stores/modules/airi-card
 
 import kebabcase from '@stdlib/string-base-kebabcase'
 
+import { useDisplayModelsStore } from '@proj-airi/stage-ui/stores/display-models'
 import { useAiriCardStore } from '@proj-airi/stage-ui/stores/modules/airi-card'
 import { useConsciousnessStore } from '@proj-airi/stage-ui/stores/modules/consciousness'
 import { useSpeechStore } from '@proj-airi/stage-ui/stores/modules/speech'
 import { useProvidersStore } from '@proj-airi/stage-ui/stores/providers'
+import { useSettingsStageModel } from '@proj-airi/stage-ui/stores/settings/stage-model'
 import { Button, FieldInput, FieldValues } from '@proj-airi/ui'
 import { Select } from '@proj-airi/ui/components/form'
 import { storeToRefs } from 'pinia'
@@ -38,9 +40,13 @@ const cardStore = useAiriCardStore()
 const consciousnessStore = useConsciousnessStore()
 const speechStore = useSpeechStore()
 const providersStore = useProvidersStore()
+const displayModelsStore = useDisplayModelsStore()
+const stageModelStore = useSettingsStageModel()
 
 const { activeProvider: consciousnessProvider, activeModel: defaultConsciousnessModel } = storeToRefs(consciousnessStore)
 const { activeSpeechProvider: speechProvider, activeSpeechModel: defaultSpeechModel, activeSpeechVoiceId: defaultSpeechVoiceId } = storeToRefs(speechStore)
+const { displayModels } = storeToRefs(displayModelsStore)
+const { stageModelSelected: defaultDisplayModelId } = storeToRefs(stageModelStore)
 
 // Determine if we're in edit mode
 const isEditMode = computed(() => !!props.cardId)
@@ -51,6 +57,15 @@ const selectedConsciousnessModel = ref<string>('')
 const selectedSpeechProvider = ref<string>('')
 const selectedSpeechModel = ref<string>('')
 const selectedSpeechVoiceId = ref<string>('')
+const selectedDisplayModelId = ref<string>('')
+
+// Computed: available display model options
+const displayModelOptions = computed(() =>
+  displayModels.value.map(model => ({
+    value: model.id,
+    label: model.name,
+  })),
+)
 
 // Computed: available consciousness provider options
 const consciousnessProviderOptions = computed(() => {
@@ -194,7 +209,7 @@ function saveCard(card: Card): boolean {
   // Before saving, let's validate what the user entered :
   const rawCard: Card = toRaw(card)
 
-  if (!(rawCard.name!.length > 0)) { // ! is used, since a default value is provided, and computed values passed to v-model should never be undefined
+  if (!((rawCard.name?.length ?? 0) > 0)) {
     // No name
     showError.value = true
     errorMessage.value = t('settings.pages.card.creation.errors.name')
@@ -206,31 +221,31 @@ function saveCard(card: Card): boolean {
     errorMessage.value = t('settings.pages.card.creation.errors.version')
     return false
   }
-  else if (!(rawCard.description!.length > 0)) {
+  else if (!((rawCard.description?.length ?? 0) > 0)) {
     // No description
     showError.value = true
     errorMessage.value = t('settings.pages.card.creation.errors.description')
     return false
   }
-  else if (!(rawCard.personality!.length > 0)) {
+  else if (!((rawCard.personality?.length ?? 0) > 0)) {
     // No personality
     showError.value = true
     errorMessage.value = t('settings.pages.card.creation.errors.personality')
     return false
   }
-  else if (!(rawCard.scenario!.length > 0)) {
+  else if (!((rawCard.scenario?.length ?? 0) > 0)) {
     // No Scenario
     showError.value = true
     errorMessage.value = t('settings.pages.card.creation.errors.scenario')
     return false
   }
-  else if (!(rawCard.systemPrompt!.length > 0)) {
+  else if (!((rawCard.systemPrompt?.length ?? 0) > 0)) {
     // No sys prompt
     showError.value = true
     errorMessage.value = t('settings.pages.card.creation.errors.systemprompt')
     return false
   }
-  else if (!(rawCard.postHistoryInstructions!.length > 0)) {
+  else if (!((rawCard.postHistoryInstructions?.length ?? 0) > 0)) {
     // No post history prompt
     showError.value = true
     errorMessage.value = t('settings.pages.card.creation.errors.posthistoryinstructions')
@@ -254,6 +269,7 @@ function saveCard(card: Card): boolean {
             model: selectedSpeechModel.value || defaultSpeechModel.value,
             voice_id: selectedSpeechVoiceId.value || defaultSpeechVoiceId.value,
           },
+          displayModelId: selectedDisplayModelId.value || defaultDisplayModelId.value,
         },
         agents: {},
       } as AiriExtension,
@@ -287,6 +303,7 @@ function initializeCard(): Card {
   selectedSpeechProvider.value = airiExt?.modules?.speech?.provider || speechProvider.value
   selectedSpeechModel.value = airiExt?.modules?.speech?.model || defaultSpeechModel.value
   selectedSpeechVoiceId.value = airiExt?.modules?.speech?.voice_id || defaultSpeechVoiceId.value
+  selectedDisplayModelId.value = airiExt?.modules?.displayModelId || defaultDisplayModelId.value
 
   // Return existing card data or defaults
   if (existingCard) {
@@ -505,6 +522,20 @@ function getDefaultPlaceholder(defaultValue: string | undefined): string {
                   class="w-full"
                 />
               </div>
+
+              <!-- Display Model (Body) -->
+              <div :class="['flex', 'flex-col', 'gap-2', 'sm:col-span-2']">
+                <label :class="['flex', 'flex-row', 'items-center', 'gap-2', 'text-sm', 'text-neutral-500', 'dark:text-neutral-400']">
+                  <div i-solar:ghost-bold-duotone />
+                  {{ t('settings.pages.card.body-model') }}
+                </label>
+                <Select
+                  v-model="selectedDisplayModelId"
+                  :options="displayModelOptions"
+                  :placeholder="getDefaultPlaceholder(defaultDisplayModelId)"
+                  class="w-full"
+                />
+              </div>
             </div>
           </div>
           <!-- Settings -->
diff --git a/packages/stage-ui/src/components/misc/index.ts b/packages/stage-ui/src/components/misc/index.ts
index 6c2982f33..78a9b1204 100644
--- a/packages/stage-ui/src/components/misc/index.ts
+++ b/packages/stage-ui/src/components/misc/index.ts
@@ -1,4 +1,5 @@
 export { default as Alert } from './alert.vue'
 export { default as ErrorContainer } from './error-container.vue'
+export { default as ProfileSwitcherPopover } from './profile-switcher-popover.vue'
 export * from './steppers'
 export { default as WIP } from './wip.vue'
diff --git a/packages/stage-ui/src/components/misc/profile-switcher-popover.vue b/packages/stage-ui/src/components/misc/profile-switcher-popover.vue
new file mode 100644
index 000000000..8621dcb7c
--- /dev/null
+++ b/packages/stage-ui/src/components/misc/profile-switcher-popover.vue
@@ -0,0 +1,162 @@
+<script setup lang="ts">
+import { onClickOutside } from '@vueuse/core'
+import { storeToRefs } from 'pinia'
+import { computed, ref } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+import { useAiriCardStore } from '../../stores/modules/airi-card'
+
+interface Props {
+  // 'down': opens below the trigger (for elements near the top, e.g. header)
+  // 'up': opens above the trigger (for elements near the bottom, e.g. floating island)
+  placement?: 'down' | 'up'
+}
+
+const props = withDefaults(defineProps<Props>(), { placement: 'down' })
+
+const emit = defineEmits<{
+  (e: 'create'): void
+  (e: 'manage'): void
+}>()
+
+const { t } = useI18n()
+const cardStore = useAiriCardStore()
+const { cards, activeCardId, activeCard } = storeToRefs(cardStore)
+
+const open = ref(false)
+const popoverRef = ref<HTMLElement>()
+
+onClickOutside(popoverRef, () => {
+  open.value = false
+})
+
+const cardsList = computed(() =>
+  Array.from(cards.value.entries()).map(([id, card]) => ({ id, name: card.name })),
+)
+
+function activateCard(id: string) {
+  activeCardId.value = id
+  open.value = false
+}
+
+function handleCreate() {
+  open.value = false
+  emit('create')
+}
+
+function handleManage() {
+  open.value = false
+  emit('manage')
+}
+</script>
+
+<template>
+  <div ref="popoverRef" class="relative">
+    <!-- Trigger button -->
+    <slot :open="open" :toggle="() => open = !open" :active-card="activeCard">
+      <button
+        :class="[
+          'flex items-center gap-1.5 rounded-xl px-2 py-1.5 text-sm transition-all',
+          'border border-neutral-200/60 dark:border-neutral-800/60',
+          'bg-neutral-50/70 dark:bg-neutral-800/70 backdrop-blur-md',
+          'hover:bg-neutral-100 dark:hover:bg-neutral-700',
+          open ? 'ring-2 ring-primary-500/20' : '',
+        ]"
+        type="button"
+        @click="open = !open"
+      >
+        <div class="i-solar:emoji-funny-square-broken size-4 text-neutral-500 dark:text-neutral-400" />
+        <span class="max-w-28 truncate text-neutral-700 dark:text-neutral-200">
+          {{ activeCard?.name ?? t('stage.profile-switcher.no-profile') }}
+        </span>
+        <div
+          class="i-solar:alt-arrow-down-linear size-3 text-neutral-400 transition-transform duration-200"
+          :class="open === (placement === 'down') ? 'rotate-180' : ''"
+        />
+      </button>
+    </slot>
+
+    <!-- Popover panel -->
+    <Transition
+      enter-active-class="transition duration-150 ease-out"
+      :enter-from-class="placement === 'up' ? 'translate-y-1 opacity-0 scale-95' : '-translate-y-1 opacity-0 scale-95'"
+      enter-to-class="translate-y-0 opacity-100 scale-100"
+      leave-active-class="transition duration-100 ease-in"
+      leave-from-class="translate-y-0 opacity-100 scale-100"
+      :leave-to-class="placement === 'up' ? 'translate-y-1 opacity-0 scale-95' : '-translate-y-1 opacity-0 scale-95'"
+    >
+      <div
+        v-if="open"
+        :class="[
+          'absolute right-0 z-50 min-w-48',
+          placement === 'up'
+            ? 'bottom-full mb-2 origin-bottom-right'
+            : 'top-full mt-2 origin-top-right',
+          'border border-neutral-200/60 dark:border-neutral-800/60 rounded-xl',
+          'bg-white/90 dark:bg-neutral-900/90 backdrop-blur-xl shadow-xl',
+          'divide-y divide-neutral-100 dark:divide-neutral-800',
+        ]"
+      >
+        <!-- Profile list -->
+        <div class="max-h-60 overflow-y-auto p-1">
+          <button
+            v-for="card in cardsList"
+            :key="card.id"
+            :class="[
+              'group w-full flex items-center gap-2.5 rounded-lg px-3 py-2 text-sm transition',
+              card.id === activeCardId
+                ? 'bg-primary-50 text-primary-700 dark:bg-primary-900/30 dark:text-primary-300'
+                : 'text-neutral-700 dark:text-neutral-200 hover:bg-neutral-100 dark:hover:bg-neutral-800',
+            ]"
+            type="button"
+            @click="activateCard(card.id)"
+          >
+            <div
+              :class="[
+                'size-4 shrink-0',
+                card.id === activeCardId
+                  ? 'i-solar:check-circle-bold-duotone text-primary-500'
+                  : 'i-solar:emoji-funny-square-broken text-neutral-400',
+              ]"
+            />
+            <span class="truncate">{{ card.name }}</span>
+          </button>
+
+          <div
+            v-if="cardsList.length === 0"
+            class="px-3 py-2 text-sm text-neutral-400 dark:text-neutral-500"
+          >
+            {{ t('stage.profile-switcher.no-profiles') }}
+          </div>
+        </div>
+
+        <!-- Actions -->
+        <div class="p-1">
+          <button
+            :class="[
+              'group w-full flex items-center gap-2.5 rounded-lg px-3 py-2 text-sm transition',
+              'text-neutral-700 dark:text-neutral-200 hover:bg-neutral-100 dark:hover:bg-neutral-800',
+            ]"
+            type="button"
+            @click="handleCreate"
+          >
+            <div class="i-solar:add-circle-bold-duotone size-4 text-neutral-400 transition group-hover:text-primary-500" />
+            {{ t('stage.profile-switcher.save-as-new') }}
+          </button>
+
+          <button
+            :class="[
+              'group w-full flex items-center gap-2.5 rounded-lg px-3 py-2 text-sm transition',
+              'text-neutral-700 dark:text-neutral-200 hover:bg-neutral-100 dark:hover:bg-neutral-800',
+            ]"
+            type="button"
+            @click="handleManage"
+          >
+            <div class="i-solar:settings-minimalistic-bold-duotone size-4 text-neutral-400 transition group-hover:text-primary-500" />
+            {{ t('stage.profile-switcher.manage') }}
+          </button>
+        </div>
+      </div>
+    </Transition>
+  </div>
+</template>
diff --git a/packages/stage-ui/src/stores/modules/airi-card.ts b/packages/stage-ui/src/stores/modules/airi-card.ts
index 8ad99f302..1d4d96871 100644
--- a/packages/stage-ui/src/stores/modules/airi-card.ts
+++ b/packages/stage-ui/src/stores/modules/airi-card.ts
@@ -8,6 +8,7 @@ import { useI18n } from 'vue-i18n'
 
 import SystemPromptV2 from '../../constants/prompts/system-v2'
 
+import { useSettingsStageModel } from '../settings/stage-model'
 import { useConsciousnessStore } from './consciousness'
 import { useSpeechStore } from './speech'
 
@@ -40,6 +41,9 @@ export interface AiriExtension {
       file?: string // Example: "live2d/model.json"
       url?: string // Example: "https://example.com/live2d/model.json"
     }
+
+    // ID from display-models store (e.g. 'preset-live2d-1', 'display-model-<nanoid>')
+    displayModelId?: string
   }
 
   agents: {
@@ -66,6 +70,7 @@ export const useAiriCardStore = defineStore('airi-card', () => {
 
   const consciousnessStore = useConsciousnessStore()
   const speechStore = useSpeechStore()
+  const stageModelStore = useSettingsStageModel()
 
   const {
     activeProvider: activeConsciousnessProvider,
@@ -123,6 +128,7 @@ export const useAiriCardStore = defineStore('airi-card', () => {
         model: activeSpeechModel.value,
         voice_id: activeSpeechVoiceId.value,
       },
+      displayModelId: stageModelStore.stageModelSelected,
     }
 
     // Return default if no extension exists
@@ -151,6 +157,7 @@ export const useAiriCardStore = defineStore('airi-card', () => {
         },
         vrm: existingExtension.modules?.vrm,
         live2d: existingExtension.modules?.live2d,
+        displayModelId: existingExtension.modules?.displayModelId ?? defaultModules.displayModelId,
       },
       agents: existingExtension.agents ?? {},
     }
@@ -223,7 +230,6 @@ export const useAiriCardStore = defineStore('airi-card', () => {
     if (!newCard)
       return
 
-    // TODO: live2d, vrm
     // TODO: Minecraft Agent, etc
     const extension = resolveAiriExtension(newCard)
     if (!extension)
@@ -235,6 +241,13 @@ export const useAiriCardStore = defineStore('airi-card', () => {
     activeSpeechProvider.value = extension?.modules?.speech?.provider
     activeSpeechModel.value = extension?.modules?.speech?.model
     activeSpeechVoiceId.value = extension?.modules?.speech?.voice_id
+
+    // Apply body model if the card has a display model configured.
+    // NOTICE: must set via store property directly (not storeToRefs .value) so Pinia's
+    // proxy correctly calls the writable computed setter → stageModelSelectedState → updateStageModel().
+    if (extension.modules?.displayModelId) {
+      stageModelStore.stageModelSelected = extension.modules.displayModelId
+    }
   })
 
   function resetState() {
@@ -264,6 +277,7 @@ export const useAiriCardStore = defineStore('airi-card', () => {
           model: activeSpeechModel.value,
           voice_id: activeSpeechVoiceId.value,
         },
+        displayModelId: stageModelStore.stageModelSelected,
       } satisfies AiriExtension['modules']
     }),