Full Breakdown
Musk vs. Altman: Trial Over OpenAI’s Nonprofit Mission
4/28/2026, 7:51:43 PM
Opening Arguments: Trial Begins in Oakland
On April 28 2026, U.S. District Judge Yvonne Gonzalez Rogers heard opening arguments in Elon Musk’s civil suit against OpenAI, CEO Sam Altman, president Greg Brockman and Microsoft. Musk seeks to unwind OpenAI’s 2019 for-profit conversion, remove Altman and Brockman, and award up to $150 billion—directed to OpenAI’s charitable arm.
Background & Context: From Charity to Corporate Giant
OpenAI was launched in 2015 as a nonprofit research lab by Musk, Altman, Brockman and others, promising AI for humanity. In March 2019 it created a for-profit subsidiary to fund compute, later becoming a public-benefit corporation in 2025 while the nonprofit retained a 26 % stake.
Key Figures & Groups
Elon Musk (Tesla, SpaceX, xAI founder) contributed $38-44 million early on; Sam Altman leads OpenAI; Greg Brockman serves as president; Microsoft is a major investor; Judge Gonzalez Rogers presides; a nine-person advisory jury was selected.
Timeline of Key Milestones
2015 – OpenAI founded; 2018 – Musk leaves board; 2019 – for-profit arm created; 2023 – Musk launches xAI; Jan 2024 – lawsuit filed; Apr 27 2026 – jury selection; Apr 28 2026 – trial opens; May 12 2026 – advisory verdict expected.
Data & Statistics
OpenAI’s valuation is $852 billion; weekly active users approach 1 billion. Musk’s seed funding totals $38 million (some reports $44 million). Proposed damages range $130-$150 billion. The nonprofit holds a 26 % equity stake.
Why It Matters / Impact
The ruling could force OpenAI back to a pure nonprofit, alter its governance, and affect a planned IPO valued near $1 trillion. It may also set precedent for donor rights in charitable-trust disputes.
Official Statements & Responses
OpenAI called the suit “baseless and jealous,” saying Musk aims to hinder a competitor. Musk’s filings describe Altman and Brockman’s actions as a “long con” turning a charity into a “wealth machine.” The judge warned Musk to limit X posts.
Criticism & Opposition
Legal scholars note donors lack standing to sue charities without fraud, making Musk’s claim difficult. Critics view the case as a personal vendetta intertwined with competition between OpenAI and xAI.
Conflicting Reports & Gaps
Sources differ on the exact damages sought ($130-$150 billion) and Musk’s total contribution ($38 million vs. $44 million). Whether Musk knew of the for-profit plan before leaving remains disputed.
Verbatim Quotes
- “Scam Altman and Greg Stockman stole a charity. Full stop.” — Elon Musk, X post
- “The truth and the law are on our side. This lawsuit has always been a baseless and jealous bid to derail a competitor.” — OpenAI, X post
- “Can’t wait to start the trial. The discovery and testimony will blow your mind,” — Elon Musk, X post
- “This is just a case about promises and breaches of promises, it won’t get technical at all,” — Judge Yvonne Gonzalez Rogers
What’s Next
Judge Rogers will review the advisory jury’s liability findings and issue a final ruling on remedies, likely by mid-May. Settlement remains on the table, but any decision will reshape OpenAI’s structure and AI market dynamics.
