Fix

app.py

@@ -8,7 +8,7 @@ engine = os.environ["engine"]
 
 
 def happytt(temperature,max_tokens,text,stop): 
-
+  stop = stop.split(';')
   response = openai.Completion.create(
     engine=engine,
     prompt=text,
@@ -17,7 +17,7 @@ def happytt(temperature,max_tokens,text,stop):
     top_p=1,
     frequency_penalty=0,
     presence_penalty=0,
-    stop=[stop]
+    stop=stop
 )
 
   return response.choices[0].text
@@ -42,5 +42,5 @@ iface = gr.Interface( happytt,[ gr.inputs.Slider(0, 1, step=0.1),gr.inputs.Slide
                                gr.inputs.Textbox(type='str',   
                                                  label="input prompt"),
                                gr.inputs.Textbox(type='str', 
-                                                 label='Token that indicate the end of the generation.')],"text", title = title, description = description )
+                                                 label='Tokens that indicate the end of the generation. (use ";" for several)')],"text", title = title, description = description )
 iface.launch(debug=True)