feat: add new OpenAI models with proper temperature parameter handling

- Add GPT 4.1 series and o1/o3/o4 models with temperature compatibility fixes

- Remove gpt-5/gpt-5-mini models due to organization verification restrictions

- Fix 400 errors for models that only support default temperature values

src/lib/providers/index.ts

@@ -120,7 +120,11 @@ export const getAvailableChatModelProviders = async () => {
             model: new ChatOpenAI({
               apiKey: customOpenAiApiKey,
               modelName: customOpenAiModelName,
-              temperature: 0.7,
+              ...((() => {
+                const temperatureRestrictedModels = ['gpt-5-nano', 'o1', 'o3-mini', 'o4-mini'];
+                const isTemperatureRestricted = temperatureRestrictedModels.some(restrictedModel => customOpenAiModelName.includes(restrictedModel));
+                return isTemperatureRestricted ? {} : { temperature: 0.7 };
+              })()),
               configuration: {
                 baseURL: customOpenAiApiUrl,
               },

src/lib/providers/openai.ts

@@ -26,6 +26,10 @@ const openaiChatModels: Record<string, string>[] = [
     displayName: 'GPT-4 omni',
     key: 'gpt-4o',
   },
+  {
+    displayName: 'GPT-4o (2024-05-13)',
+    key: 'gpt-4o-2024-05-13',
+  },
   {
     displayName: 'GPT-4 omni mini',
     key: 'gpt-4o-mini',
@@ -47,12 +51,20 @@ const openaiChatModels: Record<string, string>[] = [
     key: 'gpt-5-nano',
   },
   {
-    displayName: 'GPT 5 mini',
+    displayName: 'GPT 5 Chat Latest',
-    key: 'gpt-5-mini',
+    key: 'gpt-5-chat-latest',
   },
   {
-    displayName: 'GPT 5',
+    displayName: 'o1',
-    key: 'gpt-5',
+    key: 'o1',
+  },
+  {
+    displayName: 'o3 Mini',
+    key: 'o3-mini',
+  },
+  {
+    displayName: 'o4 Mini',
+    key: 'o4-mini',
   },
 ];
 
@@ -76,13 +88,23 @@ export const loadOpenAIChatModels = async () => {
     const chatModels: Record<string, ChatModel> = {};
 
     openaiChatModels.forEach((model) => {
-      chatModels[model.key] = {
+      // Models that only support temperature = 1
-        displayName: model.displayName,
+      const temperatureRestrictedModels = ['gpt-5-nano', 'o1', 'o3-mini', 'o4-mini'];
-        model: new ChatOpenAI({
+      const isTemperatureRestricted = temperatureRestrictedModels.some(restrictedModel => model.key.includes(restrictedModel));
+
+      const modelConfig: any = {
         apiKey: openaiApiKey,
         modelName: model.key,
-          temperature: model.key.includes('gpt-5') ? 1 : 0.7,
+      };
-        }) as unknown as BaseChatModel,
+
+      // Only add temperature if the model supports it
+      if (!isTemperatureRestricted) {
+        modelConfig.temperature = 0.7;
+      }
+
+      chatModels[model.key] = {
+        displayName: model.displayName,
+        model: new ChatOpenAI(modelConfig) as unknown as BaseChatModel,
       };
     });