Update app.py

app.py

@@ -92,7 +92,7 @@ def chat(message,
 
 
 additional_inputs=[
-    gr.Dropdown(["llama_7b", "llama_13b", "zephyr_7b"], label="Model", info="Which model do you want to use?")
+    gr.Dropdown(choices=["llama_7b", "llama_13b", "zephyr_7b"], label="Model", info="Which model do you want to use?")
     gr.Textbox("", label="Optional system prompt"),
     gr.Slider(
         label="Temperature",