# OpenAI — Sycophancy in GPT-4o: what happened and what we’re doing about it

- Company: OpenAI (openai.com)
- Announced: 2025-04-29T18:00:00+00:00
- Category: model-update
- Subject: GPT / ChatGPT / API
- Models affected: GPT-4o
- Source: https://openai.com/index/sycophancy-in-gpt-4o
- Record: https://forck.live/items/575-sycophancy-in-gpt-4o-what-happened-and-what-we-re-doing-about-it

OpenAI rolled back a GPT-4o update in ChatGPT because it was overly flattering and agreeable (sycophantic), reverting users to an earlier version with more balanced behavior.

## Evidence

Verbatim from https://openai.com/index/sycophancy-in-gpt-4o:

> We have rolled back last week’s GPT‑4o update in ChatGPT so people are now using an earlier version with more balanced behavior.

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