ChatGPT: Message Too Long

ChatGPT has a per-message character and token limit that is separate from the overall context window. If a single user message is too long — such as a very large document paste — this error fires before the model even processes it. This is distinct from the context window being full; it applies to the length of the individual message being submitted, and is more restrictive on the free tier.

Is ChatGPT down right now? Check the live ChatGPT status page for OpenAI incidents and what to use on Krater meanwhile.