Elon Musk concluded his courtroom testimony on Thursday, April 30, 2026, in his civil lawsuit against OpenAI [1].
The outcome of the trial could establish a legal precedent for how artificial intelligence companies manage the transition from nonprofit missions to commercial enterprises. It also highlights the fractured relationship between one of the world's wealthiest individuals and the leading AI laboratory.
Musk filed the lawsuit in 2024 [1]. He alleges that OpenAI reneged on its original promise to operate as a nonprofit organization dedicated to the benefit of humanity [1, 2]. The legal battle names OpenAI, CEO Sam Altman, and President Greg Brockman as defendants [1, 2].
Thursday marked the third day of testimony during the trial [3]. During the proceedings, Musk faced questioning from OpenAI attorneys regarding the company's evolution and its shift away from its founding principles [2].
Musk has been vocal about his regrets regarding his early involvement with the organization. "I was a fool to invest with a disingenuous OpenAI CEO," Musk said in a statement provided to the New York Post [4].
The proceedings focused on whether the company's current structure violates the agreements made during its inception. Musk argues that the shift toward a profit-driven model contradicts the core mission he helped establish. OpenAI has defended its evolution as necessary for the computing power and capital required to develop advanced AI models [2].
“"I was a fool to invest with a disingenuous OpenAI CEO."”
This case tests the legal enforceability of a nonprofit's 'founding mission' when it scales into a multi-billion dollar commercial entity. If the court finds that OpenAI breached its original charter, it could force a restructuring of the company's governance or result in significant financial penalties, potentially altering how AI startups balance public-interest goals with private investment.
