Elon Musk's lawyers faced off with OpenAI in court Tuesday as a federal judge weighed the billionaire's request for a court order that would block the ChatGPT maker from converting itself to a for-profit company.

Musk’s request to block OpenAI’s conversion is the latest move in a grudge match between the world's richest person and OpenAI CEO Sam Altman.

Elon Musk’s move to immediately block Sam Altman from restructuring OpenAI faltered in federal court, with a judge saying she was reluctant to issue such an order in a case pitting “billionaires versus billionaires.

A preliminary injunction stopping OpenAI’s conversion to a for-profit company is unlikely in a case of “billionaires versus billionaires,” said the judge.

Elon Musk's lawsuit against OpenAI on its shift to a for-profit entity might go to trial, ruled a federal judge. Musk co-founded OpenAI, and his legal move highlights tensions over its corporate restructuring.

Elon Musk faces an uphill battle in his effort to win a court order blocking OpenAI Inc. and its CEO Sam Altman from converting the nonprofit AI firm into a for-profit company, a federal judge in Oakland,

The injunction Musk asked for would freeze OpenAI's transformation to a more conventional, public benefit for-profit company, just as it's in talks to raise as much as $40 billion in a funding round

Elon Musk's lawsuit against OpenAI's transition to a for-profit entity may go to trial, as ruled by U.S. District Judge Yvonne Gonzalez Rogers. Musk co-founded OpenAI with Sam Altman but left before its rise.

A federal judge weighed in Tuesday on a long-brewing legal feud between billionaires Elon Musk and Sam Altman over OpenAI, suggesting she’s unlikely to halt the company’s plan to restructure for now.

A federal judge said on Tuesday that parts of Elon Musk's lawsuit against OpenAI to halt its conversion to a for-profit entity might go to trial, adding that the Tesla CEO will have to appear in court and testify.

A federal judge signaled Tuesday that some parts of Elon Musk’s lawsuit attempting to block Sam Altman-led OpenAI from becoming a for-profit entity could go to trial – and said Musk would have to personally take the stand and testify.