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Elon Musk tells his side of OpenAI's beginnings in trial pitting him against CEO Sam Altman

Elon Musk took the stand for the second day Wednesday in the landmark trial that pits the world's richest person against Sam Altman, a fellow OpenAI co-founder he accuses of betraying promises to keep the company as a nonprofit dedicated to humanity's benefit.

Elon Musk and Sam Altman face off in court over OpenAI’s founding mission

Musk’s lawsuit accuses Altman of fraud, while OpenAI says that Musk is ‘motivated by jealousy’

What Musk's lawsuit against Altman could change about the AI industry

A highly anticipated lawsuit filed by billionaire Elon Musk against OpenAI CEO Sam Altman is set to go to trial this week, starting with jury selection on Monday, as the artificial intelligence firm’s future hangs in the balance.

Musk faces harsh grilling under oath in courtroom showdown with Sam Altman

Lawyers for Musk, the world’s richest person, sought to paint him as a tech pioneer who wanted to aid humanity. A judge cut off his long-winded answers

The legal showdown between Elon Musk and Sam Altman begins today. Here's what to know.

Updated on: April 27, 2026 / 12:49 PM EDT / CBS News

Judge in Musk v. Altman Seats Nine-Person Jury. Opening Arguments Start Tuesday

The Musk v. Altman trial kicked off at a federal courthouse in Oakland, California, with jury selection followed by opening arguments.

Elon Musk and OpenAI CEO Sam Altman head to court in high-stakes showdown over AI

Technology tycoons Elon Musk and Sam Altman are poised to face off in a high-stakes trial revolving around the alleged betrayal, deceit and unbridled ambition that blurred the bickering billionaires' once-shared vision for the development of artificial intelligence.