A United States federal judge has said 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.

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 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.

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.

At the heart of the dispute is a 2017 internal power struggle at the fledgling startup that led to Altman becoming OpenAI’s CEO.

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.

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.