Elon Musk’s xAI and X Corp said they resolved an antitrust lawsuit against Apple Inc that accused the iPhone maker of favoring OpenAI’s ChatGPT over other chatbot makers.

US District Judge Mark Pittman in Fort Worth, Texas granted a request by the companies to voluntarily dismiss their case against Apple on Monday. However, the case against OpenAI will continue.

The companies, both owned by Musk’s SpaceX, had also accused OpenAI of maintaining an unlawful monopoly over the chatbot market through anti-competitive conduct.

Musk’s companies filed the suit in August 2025, seeking billions of dollars over claims that Apple’s decision to integrate OpenAI into the iPhone’s operating system inhibits competition and innovation within the AI industry and harms consumers by depriving them of choice.

Representatives for Musk’s companies and Apple and OpenAI didn’t return requests for comment.

RELATED ARTICLES

• Musk accuses Apple of unfairly favoring OpenAI among iPhone apps
• xAI puts limits on Grok image editing after concerns from California, Europe
• Grok sexual images draw rebuke, France flags content as illegal
• X faces prospect of more advertisers fleeing

Apple and OpenAI have denied the claims, arguing that their arrangement — which let users access ChatGPT results within Siri and use the AI technology as part of certain iPhone features — was never exclusive. OpenAI also described the lawsuit as part of a pattern of harassment by Musk against the firm he co-founded and then left.

Musk has sparred repeatedly with OpenAI and its chief executive officer Sam Altman in the intervening years. In May, the pair faced off in an Oakland, California, courtroom in a separate case where Musk accused OpenAI of betraying its mission to benefit the public by morphing into a for-profit business. Jurors rejected his claims, finding that he waited too long to sue.

Apple and OpenAI’s relationship has soured significantly in the two years since it was first announced. In May, Bloomberg reported that OpenAI was exploring legal options against Apple after failing to see expected benefits from their arrangement.

In July, Apple sued OpenAI for trade secret theft and accused the company and its hardware chief of engaging in a coordinated campaign to steal information about upcoming products.

The case is X Corp et al v. Apple Inc, US District Court, Northern District of Texas (Fort Worth).