Elon Musk has lost his high-profile lawsuit against OpenAI after a federal jury found that he waited too long to bring the case. The ruling, delivered in Oakland on Monday, handed a major victory to the company behind ChatGPT and cut short one of Silicon Valley’s most closely watched legal fights.

Judge Yvonne Gonzalez Rogers had asked the jury to advise her on the issue and then accepted and confirmed its decision. That meant the case turned on timing, not on the deeper questions Musk had raised about OpenAI’s direction and internal decisions.

Core claims never reached the merits

Musk had argued that OpenAI’s move from a nonprofit research lab to a profit-driven giant betrayed its founding mission. He claimed that chief executive Sam Altman and president Greg Brockman misused a $38 million donation that was meant to support artificial intelligence research for the benefit of humanity.

But the jury never reached those central claims. Instead, it found that the case was barred by statutes of limitations because Musk filed suit in 2024, four years after his last contribution to the organisation. That threshold finding effectively shut the door on the rest of the case.

Musk reacted angrily, saying on X that he would appeal because the jury “never actually ruled on the merits of the case”. He also criticised the judge, although some of his posts were later deleted.

The verdict removes what had been a serious legal cloud hanging over OpenAI. Had Musk won, the company could have faced pressure to return to a nonprofit structure, a move that might have disrupted its reported IPO ambitions and complicated ties with heavyweight backers including Microsoft, Amazon and SoftBank.

OpenAI lawyer William Savitt said outside court that the verdict confirmed the case was an attempt to sabotage a competitor. Microsoft, OpenAI’s biggest backer, also emerged unscathed from the outcome.

Courtroom drama exposed deeper tensions

The three-week trial featured big names, bruising testimony and renewed scrutiny of Altman’s leadership. Much of the evidence focused on personal credibility, internal power struggles and the early days of OpenAI. That left the case feeling, at times, like a clash of billionaire narratives as much as a legal dispute over corporate purpose.

In the end, though, the jury settled the matter on a narrow legal ground. For OpenAI, that is enough. The company keeps its structure, its momentum and its path forward. For Musk, the fight is not over yet, but this round ended before his main argument could even be heard.