ChatGPT Custom Instructions Limit Raised
btibor91 · x · 2026-07-16
OpenAI has increased the character limit for ChatGPT's custom instructions from 1,500 characters to 5,000 characters.
This change applies to Plus, Pro, Enterprise, Business, and Education users, allowing them to input longer, more detailed long-term preferences and instructions.
Related event: ChatGPT Custom Instructions Limit Expanded to 5,000 Characters(3 posts)→
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