Update app.py

app.py

@@ -276,8 +276,8 @@ import gradio as gr
 from threading import Thread
 
 MODEL_LIST = ["meta-llama/Meta-Llama-3.1-8B-Instruct"]
-HF_TOKEN = os.environ.get("HF_API_TOKEN", None)
-MODEL = os.environ.get("MODEL_ID")
+HF_TOKEN = os.environ.get("HF_API_TOKEN")
+MODEL = os.environ.get("MODEL_ID","meta-llama/Meta-Llama-3.1-8B-Instruct")
 
 TITLE = "<h1><center>Meta-Llama3.1-8B</center></h1>"