The return of GPT-4o comes after what Altman described as OpenAI underestimating "how much some of the things that people like in GPT-4o matter to them." In an attempt to simplify its offerings, OpenAI had initially removed all previous AI models from ChatGPT when GPT-5 launched on August 7,

OpenAI has spent much of the past week since launching GPT-5 trying to address a user backlash. Plus: An interview with AI “godfather” and Nobel laureate Geoffrey Hinton. But

OpenAI has brought GPT-4o back to ChatGPT after users complained about the large language model’s removal. OpenAI Chief Executive Officer Sam Altman announced the move in a Tuesday post on X. He also detailed several other changes to ChatGPT,

The ruling is the latest twist in a court fight that has played out since last year, when Musk accused OpenAI of abandoning its founding purpose as a charity by accepting billions of dollars in

The long and short of it: The fight between the tech bros will continue apace. Nothing has been decided in the case, but, as Reuters reported, U.S. District Judge Yvonne Gonzalez Rogers ruled that Musk has to face harassment claims from OpenAI, which accuses the xAI chief of engaging in a years-long campaign to harm the AI company.

In March 2026, a jury will hear OpenAI's claims of a "years-long harassment campaign" by Musk via social media, press, and legal moves.

OpenAI CEO Sam Altman said that he has taken notice of how attached some users have become to specific AI models.

Artificial Intelligence is dominating the news cycle and it’s only getting more powerful, as demonstrated by the release of OpenAI’s GPT-5, one of the smartest AI models ever. Previously running on GPT-4,

Users want their customizations and their old models back There has been more furious backpedalling from OpenAI following the company's ill-judged launch of GPT-5 and the removal of previous model selection.