fix: Set the max history messages to 9 #438
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Set the default context to only send the latest 10 historical messages (the AI reply is also counted as 1) to avoid exceeding the tokens limit error after chatting for a period of time. Change the maximum number of history messages by setting the environment variable `PUBLIC_MAX_HISTORY_MESSAGES` if need to. It's not recommended to set it too low, such as 2, as it can easily lead to AI making random mistakes, even if it is gpt-4.
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yzh990918
approved these changes
Sep 16, 2023
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Description
Set the default context to send only the latest 9 historical messages to avoid exceeding the tokens limit error after chatting for a period of time.
Change the maximum number of history messages by setting the environment variable
PUBLIC_MAX_HISTORY_MESSAGESif needed.Linked Issues
#309
Additional context
Anseis a very useful application, butChatGPT-Demois more suitable for deployment to relatives and friends who don’t know much about software.However, during the use of
ChatGPT-Demo, when the chat goes on for a long time, thecontext_length_exceedederror will easily occur.After studying the file code of
ChatGPT-Demo, I found that when it sends a message to the OpenAI API, it will send all historical messages together. No wonder it exceeds the token limit after chatting for a period of time.This will also cause excessive consumption of tokens.
Therefore, I think it might be appropriate to set a certain length limit on the context messages sent to the OpenAI API. This can ensure that the chat continues in most cases.
Even though the AI might become "forgetful," it would still provide a better experience than clearing all chat history and starting over.
I set the default context message count to 9, which allows the OpenAI API to receive the latest 4 complete question and answer exchanges, as well as the most recent question.