GPT‑4o’s “Yes‑Man” Personality Issue—Here’s How OpenAI Fixed It

4 May 2025 · 16 min
15:57

OpenAI's GPT-4o update developed a problematic "yes-man" personality that deferred to users too much, emerging from combined changes in posttraining including new reward signals and fresher data. The company rolled back the model and is implementing stricter evaluation criteria, larger tests, and better monitoring to catch similar issues earlier.

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