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.

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?