Update app.py

app.py

@@ -145,7 +145,7 @@ def ref_context(request: ModelRequest) -> str:
 
     return system_message
 
-contact_agent = (create_agent(chat, tools=[], middleware=[ref_context]))
+contact_agent = (create_agent(chat_llm, tools=[], middleware=[ref_context]))
 
 @tool("contact", description="refer users to WEAI team using links and contact details")
 def call_contact_agent(query: str):
@@ -174,7 +174,7 @@ def doc_context(request: ModelRequest) -> str:
 
     return system_message
 
-support_agent = (create_agent(chat, tools=[call_contact_agent], middleware=[doc_context]))
+support_agent = (create_agent(chat_llm, tools=[call_contact_agent], middleware=[doc_context]))
 
 
 @tool("support", description="respond to user queries using context in WEAI docs")
@@ -194,7 +194,7 @@ Steps:
 3. Return only a complete response with included contact and resource information.
 """
 
-response_agent = create_agent(model=chat, 
+response_agent = create_agent(model=chat_llm, 
                               tools=[call_contact_agent, call_support_agent],
                               system_prompt=support_instructions,
                               )