Elon Musk Testifies in High-Stakes Trial Against OpenAI Leadership

Elon Musk opened his testimony on Wednesday in a California federal courtroom, marking the first day of a jury trial that could reshape the governance of one of the world’s most influential artificial‑intelligence firms. The lawsuit, filed by Musk against OpenAI, its chief executive Sam Altman, president Greg Brockman, Microsoft and OpenAI itself, accuses the nonprofit‑turned‑for‑profit hybrid of violating its founding mission to develop artificial general intelligence for the benefit of all humanity.

Musk, who helped launch OpenAI in 2015, invested up to $38 million in the fledgling organization. He and the other three original founders—Altman, Brockman and former CTO Ilya Sutskever—shared a vision of open, collaborative AI research. Disagreements soon emerged over whether OpenAI should be integrated into Musk’s Tesla empire, prompting Musk to walk away and later create his own AI venture, xAI, which now competes directly with OpenAI. Those early tensions resurfaced in court.

The complaint alleges that OpenAI’s shift to a for‑profit model sidestepped the charitable trust that underpinned its charter. According to the filing, Altman and Brockman extracted personal financial benefits from the restructuring, effectively turning a nonprofit into a lucrative private enterprise. The suit also cites potential fraud, unjust enrichment and a breach of the organization’s duty to the public.

“We ask the court to strip Sam Altman and Greg Brockman of their positions of authority and the personal financial benefits they extracted from OpenAI’s illicit for‑profit operations,” Musk’s legal team wrote. The plaintiffs seek an order to unwind the for‑profit conversion and restore OpenAI to its original nonprofit status.

OpenAI and Microsoft, which invested heavily in the company’s commercial products, are also named as defendants. The trial, now in front of a jury, is expected to draw testimony from several high‑profile figures in the tech industry. Microsoft chief executive Satya Nadella and chief technology officer Kevin Scott have been subpoenaed, as has former OpenAI chief technology officer Mira Murati, who left the company to launch her own AI startup, Thinking Machines Lab.

Legal analysts note that the case marks the latest in a series of lawsuits Musk has launched against OpenAI. Over the past few years, he has filed at least four separate actions, many of which were dismissed or settled. This suit, however, has survived early procedural challenges and progressed to a full trial, raising the stakes for both parties.

OpenAI’s legal counsel has defended the organization’s for‑profit arm as a necessary step to attract capital and accelerate development. They argue that the company remains committed to its original mission, pointing to open‑source releases and collaborations with academic institutions. The defense also contends that the charitable trust provisions were never intended to restrict the company’s ability to generate revenue.

The courtroom drama unfolds against a backdrop of rapid AI advancement and mounting public scrutiny. As generative AI tools become embedded in everyday applications, the question of who controls the technology—and who profits from it—has taken on heightened relevance. Musk’s lawsuit, if successful, could force a restructuring that limits private gains from AI breakthroughs, while a defeat might cement the current hybrid model as the industry’s default.

Observers will watch closely for the jury’s reaction to the complex financial and ethical arguments presented. The outcome could influence future governance frameworks for AI research, affect investor confidence in AI startups, and shape policy discussions about the balance between innovation and public benefit.

The trial is slated to continue over the next several weeks, with additional witnesses expected to take the stand. Both sides have signaled that they are prepared for a protracted legal battle, underscoring how deeply the dispute runs within the AI community.