“X is the number one news app in the world and Grok is number five among all apps”, Musk wrote.

Elon Musk has threatened to sue Apple, accusing the iPhone maker of unfairly favouring ChatGPT developer OpenAI in its App Store rankings and listings.

In a series of posts on X, formerly Twitter, the Tesla and SpaceX chief claimed Apple was making it “impossible” for any other AI company to reach the number one position in the App Store, calling the move an “unequivocal antitrust violation”.

He added that his social media platform X, and his AI chatbot Grok, were excluded from Apple’s “must have” section.

“X is the number one news app in the world and Grok is number five among all apps”, Musk wrote.

ChatGPT currently tops Apple’s “Top Free Apps” chart in the UK, with Grok in third place,

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