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BackMusk v Altman: Opening Arguments Begin in High-Stakes OpenAI Trial
Musk v Altman: Opening Arguments Begin in High-Stakes OpenAI Trial
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Guardian Business28.04.2026Business3 dk okumaUnited Kingdom

Musk v Altman: Opening Arguments Begin in High-Stakes OpenAI Trial

Billionaires square off in Oakland courtroom as Musk alleges co-founders 'stole a charity' and seeks $134bn in damages

L'essentiel

  • The highly anticipated trial between Elon Musk and OpenAI began Tuesday in Oakland federal court, with Musk accusing Sam Altman and Greg Brockman of breaching a founding agreement to benefit humanity by pivoting the non-profit toward a for-profit structure.
  • Musk, who co-founded OpenAI in 2015 and left in 2018, seeks to undo the company's restructuring, remove Altman as CEO, and obtain $134bn in damages for redistribution to OpenAI's non-profit.
  • OpenAI rejects all claims, characterizing the case as jealousy-motivated and noting Musk started rival company xAI.

Résumé généré par IA

Pourquoi c'est important

This trial represents the culmination of a years-long feud between Musk and Altman. Musk co-founded OpenAI in 2015 with a stated mission to benefit humanity unconstrained by financial returns. After leaving in 2018, he started rival company xAI. OpenAI has since grown into an AI behemoth planning a $1tn IPO.

Taille de police

The trial pitting Elon Musk against Sam Altman and OpenAI began in earnest on Tuesday with opening arguments, as lawyers for the two tech moguls seek to convince a California jury of their client's version of the AI company's history. The trial is set to feature testimony from both billionaires, as well as some of the most powerful executives in the tech industry.

Musk argues that Altman, OpenAI and its president, Greg Brockman, broke a foundational agreement to better humanity when the non-profit pivoted towards a for-profit structure. Musk, who left OpenAI in 2018 after co-founding it with Altman and Brockman three years earlier, also alleges that his co-founders unjustly enriched themselves as the company raised billions of dollars and grew into the AI behemoth it is today.

OpenAI rejects all of Musk's claims, stating his case is "motivated by jealousy" and characterizing him as an embittered co-founder seeking revenge after failing to take total control. OpenAI has also pointed out that Musk started his own rival AI company, xAI, alleging that "this lawsuit has always been a baseless and jealous bid to derail a competitor".

In the early hours of Tuesday morning, long lines snaked outside the Oakland federal courthouse as reporters, legal teams and court watchers waited to get inside. Altman and Brockman were present at the courthouse on Monday, while Musk was nowhere to be seen. The two tech leaders passed through security around 15 minutes apart on Tuesday morning.

Steven Molo, one of Musk's lawyers, kicked off his opening statements and introduced his client to the jurors. Musk stood up and nodded to the jury. Molo referenced the jurors' negative feelings about Musk that were brought up during jury selection and asked them to "put your feelings aside and decide this case on the law".

"This case isn't about Elon Musk, it's about the defense," Molo said. "It's about Sam Altman and Greg Brockman."

Molo quickly turned to the founding of OpenAI, saying its mission was "the benefit of mankind as a whole unconstrained by the need to generate a financial return … Not for the benefit of Sam Altman, not for the benefit of Greg Brockman, not for the benefit of Microsoft." Then he made his central claim: that Altman and Brockman "stole a charity".

The trial is a culmination of a years-long feud between Musk and Altman that has become increasingly vicious. As the trial started jury selection on Monday, Musk posted a stream of insults against Altman on X, the social media platform Musk owns, including repeatedly calling him "Scam Altman". Musk also used his power over the platform to boost a post to followers that featured the New Yorker magazine's unflattering investigation of Altman from earlier this month.

The outcome of the case carries potentially enormous stakes for OpenAI, which is seeking to go public later this year at a valuation of about $1tn. Musk is seeking to undo its corporate restructuring and force the removal of Altman as CEO and Brockman as president. He is also seeking about $134bn in damages, which he wants redistributed to OpenAI's non-profit, which still oversees the company.

On Monday, nine jurors were seated after a day-long selection process that included a questionnaire about their feelings towards AI and Musk. Many prospective jurors stated they had negative feelings about the Tesla CEO and thoughts about AI, while Judge Yvonne Gonzalez Rogers assured the court that the case would not focus on technical details.

"This is just a case about promises and breaches of promises, it won't get technical at all," Gonzalez Rogers said.

The trial is expected to last about three weeks. Other tech industry bigwigs who may testify include the Microsoft CEO, Satya Nadella, and Neuralink executive Shivon Zilis, who is also the mother of four of Musk's children.

À surveiller

Perspective IA — des possibilités, pas des certitudes

  • Trial likely to last full three weeks as scheduled

    Très probable · En quelques semaines

  • Musk may not prevail on all claims given OpenAI's strong rejection

    Probable · En quelques semaines

  • Settlement is unlikely given Musk's public stance and high damages sought

    Possible · En quelques semaines

Questions ouvertes

  • What specific terms of the founding agreement did Altman and Brockman allegedly breach?
  • How will the jury weigh the conflicting narratives about OpenAI's original mission?
  • Will testimony from Satya Nadella and Shivon Zilis significantly impact the case?

Sujets liés

This article was originally published by Guardian Business.

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