Full Breakdown
Musk v. OpenAI: Trial Over Alleged Charity Breach
5/13/2026, 5:28:55 AM
Trial Overview
A federal civil lawsuit filed by Elon Musk against OpenAI, its chief executive Sam Altman, and president Greg Brockman is being heard in the U.S. District Court for the Northern District of California, Oakland. Musk alleges that OpenAI breached its original charitable mission by converting the 2015 nonprofit into a for-profit subsidiary, enriching its leaders and “stealing a charity.” He seeks damages of up to $150 billion, the unwinding of the for-profit arm, and the removal of Altman and Brockman. Altman testified on May 12, 2026, denying the accusations and framing the suit as retaliation after Musk failed to obtain control of the company.
Background & Context
OpenAI was founded in 2015 as a nonprofit research institute by Altman, Musk, Ilya Sutskever, Brockman and others. In 2019 the organization created a capped-profit subsidiary to attract large-scale investment, notably from Microsoft. Musk left the board in 2018, later launching his own AI venture xAI. A brief five-day ouster of Altman in 2023—referred internally as “the blip”—highlighted internal governance tensions. The lawsuit, filed in 2024, revived those disputes amid OpenAI’s preparation for a potential $1 trillion IPO.
Key Figures
- Elon Musk – Founder, Tesla and SpaceX CEO, early OpenAI donor, plaintiff.
- Sam Altman – OpenAI CEO, defendant, former Y Combinator president.
- Greg Brockman – OpenAI president, defendant.
- Ilya Sutskever – Co-founder, former board member, witness.
- Helen Toner, Tasha McCauley, Mira Murati – Former board members and executives, witnesses on Altman’s conduct.
- Steven Molo – Musk’s lead attorney.
- Yvonne Gonzalez Rogers – Presiding judge.
Timeline
- 2015 – OpenAI founded as nonprofit.
- 2018 – Musk resigns from board.
- 2019 – For-profit subsidiary created.
- 2023 – Altman briefly removed, then reinstated.
- 2024 – Musk files lawsuit alleging breach of charitable trust.
- Late April 2026 – Trial begins.
- May 12 2026 – Altman takes the stand.
- May 15 2026 – Closing arguments.
- Week of May 18 2026 – Advisory jury deliberates.
Data & Statistics
- Musk’s early contribution reported as $38 million (AP) versus $38 billion (Al Jazeera).
- OpenAI’s for-profit valuation cited at $852 billion (AP) and $850 billion (DW).
- Damages sought: $150 billion (multiple sources) and $134 billion (Guardian).
- Microsoft named as co-defendant; its investment exceeds $10 billion.
- Potential IPO valuation projected at $1 trillion.
Official Statements & Responses
OpenAI argues that Musk was aware of the for-profit plan and that the nonprofit still controls the commercial entity. Altman testified that Musk initially demanded a 90 percent equity stake, later reduced but still a majority, and that Musk’s departure improved employee morale. Musk’s complaint frames the restructuring as “unjust enrichment” and a violation of the charitable trust.
Criticism & Opposition
Former board members Helen Toner and Ilya Sutskever described a “pattern of behavior” involving dishonesty and a “culture of lying” at OpenAI. Mira Murati testified that Altman’s leadership created “chaos” and undermined trust. Critics suggest Musk’s lawsuit may be driven by personal rivalry after his own AI venture failed to secure control.
Conflicting Reports & Gaps
Sources differ on the size of Musk’s original donation ($38 million vs $38 billion) and the exact damages sought ($150 billion vs $134 billion). Valuation figures for the for-profit arm also vary. The court has not yet ruled on the statute of limitations for Musk’s claims.
Verbatim Quotes
- “Mr. Musk did try to kill it,” — Sam Altman, OpenAI CEO
- “I believe I am an honest and trustworthy businessperson,” — Sam Altman
- “If you have someone who is not trustworthy in charge of AI, I think that’s a very big danger for the whole world,” — Elon Musk
- “An early number that Mr Musk threw out was that he should have 90 percent of the equity to start,” — Sam Altman
- “I was extremely uncomfortable with it,” — Sam Altman
- “particularly hair-raising moment” — Sam Altman
Why It Matters
A ruling could force OpenAI to revert to a pure nonprofit model, jeopardizing its $1 trillion IPO and altering competitive dynamics with rivals such as Anthropic, Google DeepMind and China’s DeepSeek. The case also highlights governance challenges for AI firms that blend public-interest missions with massive private capital.
What’s Next
Closing arguments are scheduled for Thursday, May 15. An advisory jury is expected to deliver a verdict the week of May 18, with Judge Rogers likely to issue a final decision shortly thereafter. The outcome will shape OpenAI’s corporate structure, leadership, and its role in the rapidly evolving AI ecosystem.
