Upload agent.py

agent.py

@@ -177,11 +177,11 @@ tools = [
 ]
 
 # Build graph function
-def build_graph(provider: str = "groq"):
+def build_graph(provider: str = "openai"):
     """Build the graph"""
     # Load environment variables from .env file
     if provider == "openai":
-        llm = ChatOpenAI(model_name="gpt-4", temperature=0)
+        llm = ChatOpenAI(model_name="gpt-3.5-turbo", temperature=0)
     elif provider == "anthropic":
         llm = ChatAnthropic(model="claude-v1", temperature=0)
     elif provider == "google":