News
Musk-OpenAI Trial Turns to Leadership Stakes and Nonprofit Claims
- By John K. Waters
- 05/05/2026
Elon Musk’s lawsuit against OpenAI moved into a new phase this week as testimony from OpenAI President Greg Brockman shifted attention from Musk’s account of the company’s founding to questions about the financial interests of OpenAI’s current leadership.
Brockman, an OpenAI co-founder, testified on Monday that his stake in the ChatGPT maker is worth almost $30 billion. The disclosure came during questioning by a lawyer for Musk, who is suing OpenAI, Chief Executive Sam Altman, Brockman, and others over the company’s transformation from a nonprofit research lab into a business with a large for-profit arm.
Musk’s lawyers argued that Brockman’s independence may have been compromised by financial incentives that aligned him with Altman, who helped lead OpenAI’s commercial restructuring. OpenAI denies Musk’s claims and has argued that the lawsuit is shaped in part by Musk’s role as founder of xAI, a rival artificial intelligence company.
The trial began last week in federal court in Oakland before U.S. District Judge Yvonne Gonzalez Rogers. Musk testified for more than seven hours over three days, portraying the lawsuit as a defense of charitable giving and accusing OpenAI’s leaders of abandoning the organization’s original mission to develop AI for the benefit of humanity.
Brockman’s testimony has given Musk’s legal team a different line of attack. Brockman testified his OpenAI stake is worth nearly $30 billion, despite not having personally invested money in the company. Brockman also confirmed financial interests connected to other companies and to Altman’s family office.
Brockman's personal journal entries have also been entered into the trial. Brockman defended internal reservations about OpenAI’s nonprofit-to-for-profit transition after Musk’s lawyer showed the entries to the jury. Brockman testified that he had not committed to Musk that OpenAI would remain a nonprofit.
The court has also addressed a disputed pretrial settlement exchange. OpenAI’s lawyers said in a filing that Musk contacted Brockman two days before trial to discuss a possible settlement. After Brockman suggested both sides drop their claims, Musk allegedly responded that Brockman and Altman would become “the most hated men in America,” according to the filing. Judge Gonzalez Rogers ruled the exchange inadmissible.
The latest testimony keeps the case focused on OpenAI’s governance and incentives. Musk argues that OpenAI’s leaders converted an organization he helped fund as a nonprofit into a profit-seeking enterprise. OpenAI argues that the restructuring was necessary to raise capital, build advanced AI systems, and continue pursuing its mission.
No ruling was issued Tuesday. The case remains at trial, with the central question still unresolved: whether OpenAI’s corporate evolution violated its founding nonprofit purpose or was a lawful restructuring needed to finance its work.
About the Author
John K. Waters is the editor in chief of a number of Converge360.com sites, with a focus on high-end development, AI and future tech. He's been writing about cutting-edge technologies and culture of Silicon Valley for more than two decades, and he's written more than a dozen books. He also co-scripted the documentary film Silicon Valley: A 100 Year Renaissance, which aired on PBS. He can be reached at [email protected].