Musk called Apple’s App Store rankings an “unequivocal antitrust violation” in a post on his social-media platform X on Monday night and threatened “immediate legal action.” “Apple is behaving in a manner that makes it impossible for any AI company besides OpenAI to reach #1 in the App Store,” he said in the post.

Elon Musk lashed out against Apple Inc.’s app store practices late on Monday, accusing the iPhone maker of favoring OpenAI.The billionaire founder of xAI Holdings, which now houses the Grok artificial intelligence team and X social network,

The billionaire said in posts on X that the consumer tech giant was violating antitrust laws by giving preferential treatment to OpenAI on the App Store.