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.

Elon Musk threatened to sue Apple for allegedly burying his Grok AI app under competing offerings in its App Store.

Musk has not yet provided evidence that Apple has suppressed his apps. As of this writing, ChatGPT is the top app on the Apple App Store charts; Grok is in the fifth spot, lagging behind Threads.