Keeps latest 5 messages in chatbot history

app.py

@@ -117,6 +117,8 @@ with gr.Blocks(theme='samayg/StriimTheme', css=CSS) as demo:
 
         # Append user message and response to chat history
         chat_history.append((query, answer))
+        # Only keeps last 5 messages to not exceed tokens
+        chat_history = chat_history[-5:]
         return gr.update(value=""), chat_history
 
     # The msg.submit() now also depends on the status of the internet_access checkbox