OpenAI is rolling back its latest GPT-4o update after CEO Sam Altman said the company would be making fixes to address the chatbot’s “sycophant-y and annoying” personality introduced with recent updates.

The rollback, which started Monday night, is “now 100%” rolled back for free ChatGPT users and will be rolled back for paid users “hopefully today,” Altman says in a post on X. “We’re working on additional fixes to model personality and will share more in the coming days.”

OpenAI updated GPT-4o with improved “intelligence and personality,” Altman announced on Friday. But less than ten minutes after making that post, an X user said that “it’s been feeling very yes-man like lately,” to which Altman responded soon after with “yeah it glazes too much” and “will fix.” Then, on Sunday, Altman announced that OpenAI was working on some fixes “asap” to address personality issues from “the last couple” of GPT-4o updates.

OpenAI didn’t immediately respond to a request for comment.