Update app.py

app.py

@@ -37,7 +37,7 @@ async def respond(
         "Content-Type": "application/json"
     }
     payload = {
-        "model": "meta-llama/Meta-Llama-3.1-70B-Instruct",
+        "model": "mistralai/Mistral-Nemo-Instruct-2407",
         "max_tokens": max_tokens,
         "temperature": temperature,
         "top_p": top_p,