One of Silicon Valley's most dramatic splits is about to play out in a California courtroom, and the stakes couldn't be higher.
Elon Musk and Sam Altman, once allies in the race to develop artificial intelligence responsibly, are headed to trial over what Musk claims is a fundamental betrayal of OpenAI's original mission. Jury selection begins Monday in Oakland, with both billionaires expected to testify in what promises to be a high-stakes legal showdown with implications far beyond the two men involved.
From Nonprofit Ideals to $852 Billion Powerhouse
The case centres on OpenAI's dramatic transformation. When Musk helped found the company in 2015 as a nonprofit, backed by his own $38 million US investment, the vision was clear: develop artificial intelligence as a public good, free from profit motives.
That vision, Musk now argues, was abandoned. OpenAI evolved into a for-profit venture now valued at $852 billion US, with Microsoft as its largest investor. Musk claims this shift happened deceptively, behind the scenes, as Altman and other leaders pursued wealth over the company's founding principles.
"They promised one thing and did another," Musk's lawsuit effectively argues, seeking to have Altman removed from OpenAI's board and demanding unspecified damages directed toward the company's charitable arm.
Altman Fires Back: Sour Grapes and Rivalry
OpenAI's defence is straightforward: this is sour grapes from a billionaire trying to tank a competitor. After Musk stopped funding the company and their relationship deteriorated, OpenAI says Musk launched his own AI startup, xAI, in 2023—and now he's trying to cripple OpenAI out of jealousy and competitive rage.
The company also points to the fact that Musk's damages claim has shrunk dramatically. He initially sought over $100 billion US but, following unfavourable pre-trial rulings, has scaled back considerably to seek only charitable funding.
The Broader AI Debate at Stake
This trial isn't just about two billionaires arguing over contracts. The outcome could influence how artificial intelligence—a technology many fear could displace jobs and pose existential risks—gets developed and controlled by the world's most powerful companies.
Musk has long warned about AI risks and has positioned himself as a responsible steward of the technology. His lawsuit leans heavily on these concerns, suggesting OpenAI abandoned safety and ethics for profit. Altman, meanwhile, argues that a for-profit model actually accelerates responsible AI development by attracting top talent and resources.
Risks for Both Sides
While Musk has lost some pre-trial battles, the trial itself carries risks for him. Last month, another jury held him liable for fraud in Twitter's acquisition. Damaging testimony in the OpenAI trial could complicate SpaceX's planned initial public offering this summer—a critical step in Musk's quest to become the world's first trillionaire.
For Altman, the trial offers a chance to publicly defend OpenAI's business model and paint Musk as a vindictive tech titan trying to weaponize the courts against a successful rival.
A Trial That Could Reshape Tech
U.S. District Judge Yvonne Gonzalez Rogers will make the final ruling, with the jury in an advisory role. The judge has already indicated the case merits trial based on conflicting testimony from credible witnesses—and there's no question Musk and Altman qualify.
What unfolds in that Oakland courtroom over the coming weeks could reshape not just OpenAI's future, but how Silicon Valley's most powerful figures approach the development of transformative technologies.
This article is based on reporting from CBC Business and The Associated Press.