Graphic photo collage of Sam Altman and Elon Musk.

Sam Altman and Elon Musk are facing off in a high-stakes trial that could alter the future of OpenAI and its most well-known product, ChatGPT. In 2024, Musk filed a lawsuit accusing OpenAI of abandoning its founding mission of developing AI to benefit humanity and shifting focus to boosting profits instead.

Elon Musk, his financial manager and Neuralink CEO, Jared Birchall, and OpenAI cofounder Greg Brockman have already testified before the jury. Shivon Zilis, a former OpenAI board member who shares four children with Musk, took the stand on Wednesday, and the courtroom also watched former OpenAI CTO Mura Murati’s videotaped deposition.

Microsoft CEO Satya Nadella is scheduled to appear on Monday, May 11th, with OpenAI cofounder and former chief scientist Ilya Sutskever lined up to testify after that.

Musk was a cofounder of OpenAI and claims that Altman and Brockman tricked him into giving the company money, only to turn their backs on their original goal. However, OpenAI says that “This lawsuit has always been a baseless and jealous bid to derail a competitor” in a bid to boost Musk’s own SpaceX / xAI / X companies that have launched Grok as a competitor to ChatGPT.

In his lawsuit, Musk is asking for the removal of Altman and Brockman, and for OpenAI to stop operating as a public benefit corporation. Musk has also demanded that OpenAI’s nonprofit receive up to $150 billion in damages he’s asking for if he wins the case.

People to Know

Plaintiff

Elon Musk — plaintiff, OpenAI cofounder and now CEO of rival xAI

Steven Molo — lead counsel for plaintiff

Jared Birchall — manager of Musk’s family office

Shivon Zilis — former OpenAI board member who shares multiple children with Musk

Defendant

Sam Altman — defendant, CEO of OpenAI

William Savitt — lead counsel for defendant

Greg Brockman — president of OpenAI as well as a cofounder

Ilya Sutskever — former chief scientist at OpenAI and a cofounder

Judge

Yvonne Gonzalez Rogers — aka YGR, trial judge

Here’s all the latest on the trial between Musk and Altman: