Update app.py

app.py

@@ -42,7 +42,7 @@ def invoke(openai_api_key, prompt, agent_option):
     
             completion = client.chat.completions.create(
                 messages = [{"role": "user", "content": prompt}],
-                model = config["model"],
+                model = config["model_name"],
                 temperature = config["temperature"],)
     
             output = completion.choices[0].message.content