Update app/services/chat_service.py

app/services/chat_service.py

@@ -17,7 +17,7 @@ class ChatService:
         else:
             try:
                 genai.configure(api_key=api_key)
-                self.model = genai.GenerativeModel('gemini-2.0-flash')
+                self.model = genai.GenerativeModel('gemini-2.5-flash')
                 self.gemini_available = True
                 logger.info("🤖 Gemini chat service initialized")
             except Exception as e:
@@ -131,7 +131,7 @@ Your detailed markdown response:"""
                 'sources': sources,
                 'context_chunks_used': len(code_chunks),
                 'repository_name': repository_name,
-                'model_used': 'gemini-2.0-flash',
+                'model_used': 'gemini-2.5-flash',
                 'success': True
             }