Update agent.py

agent.py

@@ -54,7 +54,7 @@ class Agent:
             raise ValueError("BRAVE_SEARCH_API_KEY not found in environment variables.")
 
         llm = ChatGoogleGenerativeAI(
-            model="gemini-2.5-flash-preview-04-17",
+            model="gemini-1.5-pro",
             google_api_key=gemini_key,
             convert_system_message_to_human=True
         )