Update app.py

app.py

@@ -26,7 +26,7 @@ def respond(
     from llama_cpp_agent.chat_history.messages import Roles
     
     llm = Llama(
-        model_path="models/mixtral-8x7b-instruct-v0.1.Q6_K.gguf",
+        model_path="models/Mixtral-8x22B-v0.1-IQ4_XS.gguf",
         n_gpu_layers=79,
     )
     provider = LlamaCppPythonProvider(llm)