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 has denied Elon Musk's accusation that it's favoring OpenAI in its App Store rankings and making it impossible for other AI companies to reach the top. In a statement sent to Bloomberg, Apple said the App Store is "designed to be fair and free of bias.

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?