Added dropdown

app.py

@@ -14,14 +14,11 @@ model_choices = [
 key = os.environ['OPENAI_API_KEY']
 config = {
     "key": key,
-    "model": model_choices[0],
+    "model": "gpt-3.5-turbo",
     "role": "You are trying to give a short answer in less than 40 words.",
     "context_depth": 3,
     "max_tokens": 256,    
 }
-
-
-
 chatgpt = ChatGPT(config)
 
 
@@ -36,7 +33,7 @@ def ask(message, history, persona):
 demo = gr.ChatInterface(ask, 
     additional_inputs=[
         gr.Textbox(chatgpt.role, label="Persona"), 
-        #gr.Dropdown(choices=model_choices, value=model_choices[0], label="Model")
+        gr.Dropdown(choices=model_choices, value=model_choices[0], label="Model")
     ]
 )