OpenAI· GPT / ChatGPT / APIModel update

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.

From the source

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

openai.com

Announced

29 Apr 2025 18:00 UTC

Detected

03 Aug 2026 21:11 UTC (+461d after)