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Are custom instructions almost useless?

This story is from 2026-08-29. It is preserved in the archive; the latest stories are on the live feed.

ChatGPT never adheres to them and you would have better results by just putting the instructions in the prompt. I even tried putting a single instruction in the personalization section and then comparing it to adding the instruction at the end of the prompt and it basically completely ignores it if…

Read the full story at r/ChatGPT ↗

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  1. 2026-08-29 21:58 · r/ChatGPT
    Are custom instructions almost useless?

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