Update app.py

app.py

@@ -44,9 +44,9 @@ class BasicAgent:
             read_file,
             transcribe_audio
         ]        
-        self.google_llm = ChatGoogleGenerativeAI(model='gemini-2.5-flash')
-        self.llm_with_tools = self.google_llm.bind_tools(self.tools)
-        self.graph = self.create_graph()     
+        self.llm = ChatOpenAI(model="gpt-4o-mini")
+        self.llm_with_tools = self.llm.bind_tools(self.tools)
+        self.google_llm = ChatGoogleGenerativeAI(model='gemini-2.0-flash-lite')    
 
     def __call__(self, task_id: str, question: str, file_name: str = None, local_file_name: str = None) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")