Update app.py

app.py

@@ -8,8 +8,7 @@ lock = threading.Lock()
 os.environ["LANGCHAIN_PROJECT"] = "langgraph-multi-agent"
 os.environ["LANGCHAIN_TRACING_V2"] = "true"
 
-LLM_MANAGER = "o1"
-LLM_AGENT = "gpt-4o"
+LLM = "gpt-4o"
 
 def invoke(openai_api_key, topic):
     if not openai_api_key:
@@ -19,7 +18,7 @@ def invoke(openai_api_key, topic):
         
     with lock:
         os.environ["OPENAI_API_KEY"] = openai_api_key
-        article = run_multi_agent(LLM_MANAGER, LLM_AGENT, topic)
+        article = run_multi_agent(LLM, topic)
         del os.environ["OPENAI_API_KEY"]
         return article