fix: openrouter 和 local 切换后加载成了 fallback model list

src/components/SearchableModelPicker.tsx

@@ -47,6 +47,7 @@ export function SearchableModelPicker({
   const [focusedModel, setFocusedModel] = useState<string | undefined>(initialValue)
 
   const isFastMode = useAppState(s => isFastModeEnabled() ? s.fastMode : false)
+  const authVersion = useAppState(s => s.authVersion)
   const [hasToggledEffort, setHasToggledEffort] = useState(false)
   const effortValue = useAppState(s => s.effortValue)
   const [effort, setEffort] = useState<EffortLevel | undefined>(
@@ -62,7 +63,7 @@ export function SearchableModelPicker({
     console.error('Error getting model options:', error)
     return []
   }
-}, [isFastMode])
+}, [isFastMode, authVersion])
 
   // Filter options based on search query
   const filteredOptions = React.useMemo(() => {

src/utils/auth.ts

@@ -446,14 +446,6 @@ export async function saveLocalModelConfig(baseUrl: string, modelName: string):
   // Clear provider cache so it will be re-read on next access
   const { clearStoredProviderCache } = await import('./model/providers.js')
   clearStoredProviderCache()
-  
-  // Clear OpenRouter models cache so it will be refetched with new API key
-  try {
-    const { clearOpenRouterModelsCache } = await import('./model/openRouterModels.js')
-    clearOpenRouterModelsCache()
-  } catch (error) {
-    // Ignore errors from clearing cache
-  }
 }
 
 export function getLocalModelName(): string | null {

src/utils/model/modelOptions.ts

@@ -488,46 +488,9 @@ function getModelOptionsBase(fastMode = false): ModelOption[] {
       ]
     }
 
-    // Fallback: show some popular OpenRouter models
-    const fallbackModels = [
-      {
-        value: 'anthropic/claude-sonnet-4.6',
-        label: 'Anthropic: Claude Sonnet 4.6',
-        description: 'Best for everyday tasks',
-      },
-      {
-        value: 'anthropic/claude-opus-4.6',
-        label: 'Anthropic: Claude Opus 4.6',
-        description: 'Most capable for complex work',
-      },
-      {
-        value: 'anthropic/claude-haiku-4.5',
-        label: 'Anthropic: Claude Haiku 4.5',
-        description: 'Fastest for quick answers',
-      },
-      {
-        value: 'openai/gpt-5.4',
-        label: 'OpenAI: GPT-5.4',
-        description: 'Most capable OpenAI model',
-      },
-      {
-        value: 'openai/gpt-5.4-mini',
-        label: 'OpenAI: GPT-5.4 Mini',
-        description: 'Faster, more efficient option',
-      },
-      {
-        value: 'google/gemini-2.5-pro',
-        label: 'Google: Gemini 2.5 Pro',
-        description: 'Advanced reasoning and coding',
-      },
-      {
-        value: 'meta-llama/llama-4-400b',
-        label: 'Meta: Llama 4 400B',
-        description: 'Open-source flagship model',
-      },
-    ]
-
-    return [getDefaultOptionForUser(fastMode), ...fallbackModels]
+    // No cached models yet, just show Default option
+    // The background fetch will populate the cache for next time
+    return [getDefaultOptionForUser(fastMode)]
   }
 
   // PAYG 3P: Default (Sonnet 4.5) + Sonnet (3P custom) or Sonnet 4.6/1M + Opus (3P custom) or Opus 4.1/Opus 4.6/Opus1M + Haiku + Opus 4.1