Update app.py

app.py

@@ -17,7 +17,7 @@ install()  # Enable rich tracebacks for easier debugging
 # --- Constants ---
 
 API_URL = "https://api-inference.huggingface.co/models/"
-MODEL_NAME = "mistralai/Mixtral-8x7B-Instruct-v0.1"  # Replace with your desired model
+MODEL_NAME = "meta-llama/Meta-Llama-3.1-8B"  # Replace with your desired model
 
 # Chat Interface Parameters
 DEFAULT_TEMPERATURE = 0.9