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.

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.

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.

Elon Musk asked a judge to block OpenAI's attempt to transition from nonprofit to for-profit. It's not the first time he's feuded with CEO Sam Altman.

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.

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