Elon Musk said Apple is behaving anticompetitively by promoting OpenAI’s ChatGPT while suppressing his Grok AI chatbot in the App Store, renewing his criticism of the iPhone maker’s partnership with OpenAI.

Apple is behaving in a manner that makes it impossible for any AI company besides OpenAI to reach #1 in the App Store, which is an unequivocal antitrust violation,” Musk said. “Why do you refuse to put either X or Grok in your ‘Must Have’ section when X is the #1 news app in the world and Grok is #5 among all apps?

Elon Musk has threatened Apple with legal action for what he perceives as overt favoritism towards OpenAI's ChatGPT app in its App Store rankings. In a series of posts on X, he claimed that Grok, the chatbot created by his own company xAI, was being unfairly penalized by the iPhone maker.