Business

Elon Musk Lost His OpenAI Lawsuit in 90 Minutes

By Mike Harper · May 19, 2026

The most consequential AI lawsuit in history ended Monday afternoon in a federal courthouse in Oakland. The jury took 90 minutes. Their verdict did not answer the question at the center of the case.

A nine-person jury unanimously found that Elon Musk had waited too long to sue OpenAI CEO Sam Altman and company president Greg Brockman, determining that Musk knew or should have known about OpenAI’s transition to a for-profit model well before he filed his lawsuit in February 2024. Under applicable statutes of limitations, those claims were time-barred. U.S. District Judge Yvonne Gonzalez Rogers, who had indicated throughout the trial she was prepared to dismiss on exactly these grounds, accepted the advisory verdict immediately.

“I think there’s a substantial amount of evidence to support the jury’s finding,” she said.

The decision means Altman, Brockman, OpenAI, and Microsoft — which was also named as a defendant for its investments in OpenAI’s for-profit arm — are not liable on any of the claims Musk brought. None of the three-week trial’s most substantive questions — whether OpenAI betrayed its founding nonprofit mission, whether Altman and Brockman enriched themselves at the expense of the organization’s charitable purpose, whether the transition from nonprofit to hybrid for-profit constituted a breach of charitable trust — were ruled on. The jury sidestepped all of it on a calendar technicality.

That is what makes the verdict simultaneously decisive and deeply incomplete.

Musk’s attorney Marc Toberoff told reporters the verdict was a narrow decision on “technical legal issues” and that the core case about Altman and the others breaching their duty to OpenAI had been proved. He announced an appeal to the Ninth Circuit Court of Appeals immediately. Musk posted on X hours after the verdict: “The judge and jury never actually ruled on the merits of the case, just on a calendar technicality. There is no question to anyone following the case in detail that Altman and Brockman did in fact enrich themselves by stealing a charity.”

OpenAI’s attorney William Savitt was equally direct in the other direction: “The finding of the jury confirms that what this lawsuit was was a hypocritical attempt to sabotage a competitor.” Lawyers for OpenAI and Microsoft exchanged hugs in the courtroom. None of the principals — Musk, Altman, or Brockman — was present for the verdict.

The timeline that doomed Musk’s case is worth understanding. The jury found he knew about OpenAI’s for-profit transition as early as 2021, when Microsoft secured an exclusive license to GPT-3 and Musk posted on X: “This does seem like the opposite of open. OpenAI is essentially captured by Microsoft.” OpenAI’s lawyers argued that post demonstrated Musk had reason to sue then — three years before he did. Musk testified he was reassured by Altman at the time that the nonprofit mission was intact. The jury concluded that reassurance was insufficient to restart the limitations clock.

The practical consequence for OpenAI is significant. The company has been preparing a blockbuster IPO it expects will value it at more than $1 trillion. The lawsuit was the largest legal obstacle hanging over that process. With the verdict, OpenAI’s current corporate structure — a nonprofit foundation board overseeing a for-profit entity — is legally intact and no longer subject to imminent challenge. The IPO path is now clear.

The question of whether OpenAI actually betrayed its founding mission — whether Altman and Brockman actually “stole a charity,” as Musk’s filing alleged — was never answered. Musk says the appeal will force that question to be addressed on the merits. OpenAI says there is no merit to address.