Update app/api/chat/route.ts

app/api/chat/route.ts

@@ -25,7 +25,7 @@ export async function POST(req: Request) {
   const { messages, function_call } = await req.json()
 
   const response = await openai.chat.completions.create({
-    model: 'gpt-3.5-turbo',
+    model: 'gpt-4o',
     stream: true,
     messages,
     functions,