Update app.py

app.py

@@ -12,7 +12,7 @@ from langchain.agents import create_react_agent
 from langchain.agents.agent import RunnableAgent
 from langchain.agents.tools import Tool
 from langchain_core.messages import HumanMessage
-from langchain_openai import ChatOpenAI
+from langchain_google_genai import ChatGoogleGenerativeAI
 
 
 # (Keep Constants as is)
@@ -30,7 +30,8 @@ class BasicAgent:
         if not OPENAI_API_KEY:
             raise ValueError("OPENAI_API_KEY environment variable not found.")
 
-        self.llm = ChatOpenAI(model="gpt-4o", api_key=OPENAI_API_KEY)
+        self.llm = ChatGoogleGenerativeAI(model="gemini-2.0-flash")
+
 
         # Example tools
         self.tools = [