Elon Musk called Sam Altman a "liar." Altman accused him of manipulating X for his own benefit. The two tech billionaires are at it again.

OpenAI CEO Sam Altman called out Elon Musk after the chief executive of X threatened to sue Apple, accusing the tech company of “relentlessly promoting” the owner of the popular platform ChatGPT at the expense of his xAI company.

These attacks allegedly culminated in Musk's seemingly fake OpenAI takeover attempt in 2025, which OpenAI claimed a Musk ally, Ron Baron, admitted on CNBC was "pitched to him" as not an attempt to actually buy OpenAI’s assets, "but instead to obtain 'discovery' and get 'behind the wall' at OpenAI."