Users have been complaining the GPT-4o has become so enthusiastic that it's verging on sycophantic. The change appears to be the unintentional result of a series of updates, which OpenAI is now attempting to resolve "asap.

OpenAI's CEO, Sam Altman, announced the complete replacement of GPT-4 within ChatGPT by its successor, GPT-4o. This transition follows a recent rollback of a GPT-4o update criticized for overly agreeable responses.

Sam Altman, in a farewell post on X (formerly Twitter), offered a tongue-in-cheek tribute to the now-replaced model