Finally properly working environment variables.

.gitignore

@@ -2,4 +2,4 @@
 /__pycache__
 /image
 
-start.sh
+start.*

app.py

@@ -123,7 +123,7 @@ class ConversationBot:
         return state, state, f'{txt} {image_filename} '
 
     def init_agent(self, openai_api_key):
-        self.llm = OpenAI(temperature=0, openai_api_key=openai_api_key)
+        self.llm = OpenAI(temperature=0.5, max_tokens=512, openai_api_key=openai_api_key)
         self.agent = initialize_agent(
             self.tools,
             self.llm,
@@ -171,7 +171,7 @@ with gr.Blocks(css="#chatbot {overflow:auto; height:500px;}") as demo:
     chatbot = gr.Chatbot(elem_id="chatbot", label="Visual ChatGPT")
     state = gr.State([])
 
-    with gr.Row(visible=bot.agent) as input_raws:
+    with gr.Row(visible=getattr(bot, 'agent', False)) as input_raws:
         with gr.Column(scale=0.7):
             txt = gr.Textbox(show_label=False, placeholder="Enter text and press enter, or upload an image").style(container=False)
         with gr.Column(scale=0.10, min_width=0):