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.

The response comes after Musk threatened to sue Apple via xAI, claiming the iPhone maker was “behaving in a manner that makes it impossible for any AI company besides OpenAI to reach #1 in the App Store.

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 on Monday, he wrote that Grok,