Reviewing Old ChatGPT Sessions: Stuck Custom Instructions Trigger Classic Prompts

koltregaskes · x · 2026-08-09

A user reviewing old ChatGPT sessions noted that conversations retain the custom instructions active at their time of creation. When prompting an old session that used the o3 model, the AI unexpectedly echoed the classic optimization phrase "Take a deep breath and work on this problem step-by-step."

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