diff --git a/packages/stage-pages/src/pages/settings/providers/speech/comet-api-speech.vue b/packages/stage-pages/src/pages/settings/providers/speech/comet-api-speech.vue
index d8a127a08..8eb3eda76 100644
--- a/packages/stage-pages/src/pages/settings/providers/speech/comet-api-speech.vue
+++ b/packages/stage-pages/src/pages/settings/providers/speech/comet-api-speech.vue
@@ -2,14 +2,16 @@
 import type { SpeechProvider } from '@xsai-ext/providers/utils'
 
 import {
-  SpeechPlayground,
+  Alert,
+  SpeechPlaygroundOpenAICompatible,
   SpeechProviderSettings,
 } from '@proj-airi/stage-ui/components'
+import { useProviderValidation } from '@proj-airi/stage-ui/composables/use-provider-validation'
 import { useSpeechStore } from '@proj-airi/stage-ui/stores/modules/speech'
 import { useProvidersStore } from '@proj-airi/stage-ui/stores/providers'
-import { FieldRange } from '@proj-airi/ui'
+import { FieldInput, FieldRange } from '@proj-airi/ui'
 import { storeToRefs } from 'pinia'
-import { computed, ref, watch } from 'vue'
+import { computed, onMounted, ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 
 const speechStore = useSpeechStore()
@@ -23,19 +25,77 @@ const defaultVoiceSettings = {
 
 // Get provider metadata
 const providerId = 'comet-api-speech'
-const defaultModel = 'gpt-4o-mini-tts'
+const defaultModel = 'tts' // https://www.cometapi.com/models/openai/tts/
 
-const speed = ref<number>(1.0)
+// Initialize speed from provider config or default
+const speed = ref<number>(
+  (providers.value[providerId] as any)?.voiceSettings?.speed
+  || (providers.value[providerId] as any)?.speed
+  || defaultVoiceSettings.speed,
+)
+
+// Model selection
+const model = computed({
+  get: () => providers.value[providerId]?.model as string | undefined || defaultModel,
+  set: (value) => {
+    if (!providers.value[providerId])
+      providers.value[providerId] = {}
+    providers.value[providerId].model = value
+  },
+})
+
+const voice = computed({
+  get: () => providers.value[providerId]?.voice || 'alloy',
+  set: (value) => {
+    if (!providers.value[providerId])
+      providers.value[providerId] = {}
+    providers.value[providerId].voice = value
+  },
+})
+
+// Watch provider config changes to sync local refs (for reset functionality)
+watch(
+  () => providers.value[providerId],
+  (newConfig) => {
+    if (newConfig) {
+      const config = newConfig as any
+      const newSpeed = config.voiceSettings?.speed || config.speed || defaultVoiceSettings.speed
+      if (Math.abs(speed.value - newSpeed) > 0.001)
+        speed.value = newSpeed
+
+      if (!config.model && model.value !== defaultModel)
+        model.value = defaultModel
+
+      if (!config.voice && voice.value !== 'alloy')
+        voice.value = 'alloy'
+    }
+    else {
+      speed.value = defaultVoiceSettings.speed
+      model.value = defaultModel
+      voice.value = 'alloy'
+    }
+  },
+  { deep: true, immediate: true },
+)
 
 // Check if API key is configured
 const apiKeyConfigured = computed(() => !!providers.value[providerId]?.apiKey)
 
-const availableVoices = computed(() => {
-  return speechStore.availableVoices[providerId] || []
+// Ensure provider config is initialized on mount
+onMounted(() => {
+  if (!providers.value[providerId]) {
+    providers.value[providerId] = {}
+  }
+  if (!providers.value[providerId].model) {
+    providers.value[providerId].model = defaultModel
+  }
+  if (!providers.value[providerId].voice) {
+    providers.value[providerId].voice = 'alloy'
+  }
 })
 
-// Generate speech with ElevenLabs-specific parameters
-async function handleGenerateSpeech(input: string, voiceId: string, _useSSML: boolean) {
+// Generate speech with OpenAI-compatible parameters
+async function handleGenerateSpeech(input: string, voiceId: string, _useSSML: boolean, modelId?: string) {
   const provider = await providersStore.getProviderInstance<SpeechProvider<string>>(providerId)
   if (!provider) {
     throw new Error('Failed to initialize speech provider')
@@ -44,26 +104,47 @@ async function handleGenerateSpeech(input: string, voiceId: string, _useSSML: bo
   // Get provider configuration
   const providerConfig = providersStore.getProviderConfig(providerId)
 
-  // Get model from configuration or use default
-  const model = providerConfig.model as string | undefined || defaultModel
+  // Use the reactive model computed property (not a local variable)
+  const modelToUse = modelId || model.value || defaultModel
 
-  // ElevenLabs doesn't need SSML conversion, but if SSML is provided, use it directly
   return await speechStore.speech(
     provider,
-    model,
+    modelToUse,
     input,
-    voiceId,
+    voiceId || (voice.value as string),
     {
       ...providerConfig,
       ...defaultVoiceSettings,
+      speed: speed.value,
     },
   )
 }
 
 watch(speed, async () => {
-  const providerConfig = providersStore.getProviderConfig(providerId)
-  providerConfig.speed = speed.value
+  if (!providers.value[providerId])
+    providers.value[providerId] = {}
+  providers.value[providerId].speed = speed.value
 })
+
+watch(model, () => {
+  if (!providers.value[providerId])
+    providers.value[providerId] = {}
+  providers.value[providerId].model = model.value
+})
+
+watch(voice, () => {
+  if (!providers.value[providerId])
+    providers.value[providerId] = {}
+  providers.value[providerId].voice = voice.value
+})
+
+// Use the composable to get validation logic and state
+const {
+  isValidating,
+  isValid,
+  validationMessage,
+  forceValid,
+} = useProviderValidation(providerId)
 </script>
 
 <template>
@@ -72,8 +153,15 @@ watch(speed, async () => {
     :default-model="defaultModel"
     :additional-settings="defaultVoiceSettings"
   >
-    <!-- Voice settings specific to ElevenLabs -->
+    <!-- Voice settings specific to Comet API -->
     <template #voice-settings>
+      <!-- Model input -->
+      <FieldInput
+        v-model="model"
+        label="Model"
+        description="Enter the TTS model to use for speech generation"
+        placeholder="gpt-4o-mini-tts"
+      />
       <!-- Speed control - common to most providers -->
       <FieldRange
         v-model="speed"
@@ -85,13 +173,42 @@ watch(speed, async () => {
     </template>
 
     <template #playground>
-      <SpeechPlayground
-        :available-voices="availableVoices"
+      <SpeechPlaygroundOpenAICompatible
+        v-model:model-value="model"
+        v-model:voice="voice as any"
         :generate-speech="handleGenerateSpeech"
         :api-key-configured="apiKeyConfigured"
-        default-text="Hello! This is a test of the OpenAI Speech."
+        default-text="Hello! This is a test of the CometAPI Speech."
       />
     </template>
+
+    <!-- Validation Status -->
+    <template #advanced-settings>
+      <Alert v-if="!isValid && isValidating === 0 && validationMessage" type="error">
+        <template #title>
+          <div class="w-full flex items-center justify-between">
+            <span>{{ t('settings.dialogs.onboarding.validationFailed') }}</span>
+            <button
+              type="button"
+              class="ml-2 rounded bg-red-100 px-2 py-0.5 text-xs text-red-600 font-medium transition-colors dark:bg-red-800/30 hover:bg-red-200 dark:text-red-300 dark:hover:bg-red-700/40"
+              @click="forceValid"
+            >
+              {{ t('settings.pages.providers.common.continueAnyway') }}
+            </button>
+          </div>
+        </template>
+        <template v-if="validationMessage" #content>
+          <div class="whitespace-pre-wrap break-all">
+            {{ validationMessage }}
+          </div>
+        </template>
+      </Alert>
+      <Alert v-if="isValid && isValidating === 0" type="success">
+        <template #title>
+          {{ t('settings.dialogs.onboarding.validationSuccess') }}
+        </template>
+      </Alert>
+    </template>
   </SpeechProviderSettings>
 </template>