In happier times, OpenAI CEO Sam Altman and Tesla CEO Elon Musk were buddies and business partners, but their bromance notoriously turned sour a long time ago. For the past several years, the two have very publicly hated each other and taken every opportunity they can to dunk on one another’s business pursuits.

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.

O penAI 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.