OpenAI’s Altman ‘stole a charity’, Musk claims as trial begins

April 28, 2026

```json { "title": "Musk vs. Altman Trial Begins: OpenAI's Future on Trial", "metaDescription": "The Musk v. Altman trial opened April 28, 2026, in Oakland. Here's what's at stake for OpenAI, AI's future, and an $850B company's nonprofit roots.", "content": "<h2>Opening Arguments Begin in Musk v. Altman, the Trial That Could Reshape OpenAI</h2>The most consequential courtroom battle in artificial intelligence history officially got underway on Tuesday, April 28, 2026, in a federal courthouse in Oakland, California. Elon Musk, plaintiff and CEO of Tesla and SpaceX, squared off against OpenAI CEO Sam Altman and President Greg Brockman in a trial that will determine whether a company now valued at over $850 billion betrayed the charitable mission on which it was founded. Presided over by U.S. District Judge Yvonne Gonzalez Rogers, the trial is scheduled to run approximately four weeks, with jurors expected to begin deliberating on liability by May 12.A nine-person jury was seated on Monday, April 27, 2026, after five hours of questioning. Opening arguments began the following morning — but not before the proceedings generated controversy even before a single witness took the stand.<h2>A Rocky Start: Social Media, a Judicial Warning, and a Founding Myth on Trial</h2>On the day of jury selection, Musk posted on X: "Scam Altman and Greg Stockman stole a charity. Full stop." The post drew an immediate rebuke from Judge Gonzalez Rogers, who scolded Musk on Tuesday for his social media activity about the trial and threatened to impose a gag order before the jury entered the courtroom. Both Musk and Altman subsequently agreed to limit their posts about the case.The outburst underscored the deeply personal dimension of a legal dispute that traces its roots to 2015, when Musk co-founded OpenAI alongside Altman, Brockman, and others as a nonprofit organization dedicated to developing artificial intelligence "to benefit humanity." Musk provided approximately $38 million in seed funding between December 2015 and May 2017, before departing the board in 2018 — a departure OpenAI attributed to potential future conflicts with Tesla's own AI and autonomous vehicle work.OpenAI created a for-profit subsidiary in March 2019, roughly one year after Musk's departure. In late 2025, the company completed a full conversion to a public benefit corporation, a structure approved by the attorneys general of California and Delaware under a series of conditions. The nonprofit foundation retained a 26% stake in the new for-profit entity, plus warrants tied to certain valuation targets.Musk filed suit against OpenAI, Altman, Brockman, and Microsoft in August 2024, originally asserting 26 claims. By the time trial commenced, only two remained: breach of charitable trust and unjust enrichment. He is seeking $150 billion in damages from OpenAI and Microsoft — with proceeds designated for OpenAI's charitable arm — and is also requesting that OpenAI revert to a nonprofit structure with Altman and Brockman removed as officers.<h2>What Each Side Is Arguing — and What the Court Has Already Found</h2>Musk's legal team is arguing that he was deceived into believing OpenAI would remain a nonprofit, open-source enterprise, and that its transformation into a for-profit juggernaut constitutes a fundamental betrayal of that founding promise. Their court filings deploy vivid language: "The perfidy and deceit are of Shakespearean proportions," reads one filing. Another states: "Never before has a corporation gone from tax-exempt charity to a $157 billion for-profit, market-paralyzing gorgon — and in just eight years."Musk's lawyers estimated damages by claiming that 50% to 75% of the OpenAI nonprofit's stake can be attributed to his contributions, multiplied against the company's current valuation. In January 2026, his legal team stated he should receive up to $134 billion in wrongful gains from OpenAI and Microsoft, though Musk has since directed that any potential award go to OpenAI's charitable arm rather than to himself personally.OpenAI's defense is equally forceful. In an official statement, the company said: "This lawsuit has always been a baseless and jealous bid to derail a competitor." OpenAI added: "We can't wait to make our case in court where both the truth and the law are on our side." OpenAI and Microsoft have argued that Musk was himself involved in early discussions about a for-profit structure — the court has already found that in 2017, Altman and Brockman wanted to establish a for-profit arm, while Musk at the same time proposed merging OpenAI with Tesla — and that he departed only after failing to seize control of the organization. They contend his lawsuit is driven by competitive jealousy, given that he launched his own rival AI company, xAI, in 2023, shortly after OpenAI launched ChatGPT.A 2023 email submitted as a court exhibit adds a striking human dimension to the dispute. In it, Altman tells Musk he is his "hero" but that he is hurt by Musk's public attacks on OpenAI. Musk's reply: "I hear you and it is certainly not my intention to be hurtful, for which I apologize, but the fate of civilization is at stake."In February 2025, Musk via xAI made an unsolicited bid to acquire OpenAI for $97.4 billion, which the OpenAI board unanimously rejected.<h2>The Jury's Role — and Why It's More Limited Than It Appears</h2>The trial has been split into two phases by Judge Gonzalez Rogers: a liability phase to determine if any wrongdoing occurred, and a remedies phase to determine appropriate damages and next steps. Notably, the nine-person jury will deliver an advisory verdict only — a non-binding recommendation — to guide the judge in deciding Musk's claims. Final authority over remedies rests with Judge Gonzalez Rogers herself.Expected witnesses include Musk, Altman, Brockman, Microsoft CEO Satya Nadella, former OpenAI chief scientist Ilya Sutskever, and former OpenAI CTO Mira Murati — a roster that reads like a who's who of the AI industry's formative decade.<h2>Context: Why This Trial Matters Beyond Silicon Valley</h2>The stakes extend well beyond a personal feud between two of the world's most prominent technology figures. OpenAI's products, led by ChatGPT, now serve more than 700 million weekly users, according to the company. Its valuation of over $850 billion makes it one of the most valuable private companies in history. Any court-ordered reversion to nonprofit status or removal of current leadership would carry enormous consequences for OpenAI's anticipated IPO and its competitive position in a rapidly evolving AI market.The case also raises foundational questions about corporate law and the obligations of nonprofit organizations when they transform into for-profit entities — questions that have rarely, if ever, been tested at this scale. The state attorneys general of California and Delaware struck a deal with OpenAI in October 2025 to approve its new corporate structure, but that approval came with conditions, and the trial adds a layer of judicial scrutiny that regulators could not fully provide.Meanwhile, Musk's own AI venture, xAI, in combination with SpaceX, is valued at $1.25 trillion, according to MIT Technology Review — making the plaintiff himself one of the most formidable competitors to the company he is suing.<h2>Expert Reactions: Legal Uncertainty and High Drama</h2>Legal scholars and market observers are watching closely, though with varying degrees of confidence about the outcome. Jill Horwitz, a law professor who studies nonprofit law at Northwestern University, questioned the fundamental premise of the suit: "The idea that Elon Musk can sue because he was a donor or used to be on the board is pretty puzzling."David Tuffley, a lecturer at Griffith University's School of Information and Communication Technology, framed the case as a potential turning point for how corporations are held accountable: "I think this current lawsuit is going to be a very interesting step in the direction of clarifying just how responsible a corporation is."Dan Ives, analyst at Wedbush, captured the spectacle more bluntly: "This is a tech soap opera that all investors will be watching as Musk vs Altman enters the MMA ring."<h2>What's Next: A Four-Week Trial With Civilization-Scale Claims</h2>With opening arguments now underway, the court schedule calls for jurors to begin deliberating on liability by May 12. If the jury delivers an advisory finding in Musk's favor, Judge Gonzalez Rogers would then move to a remedies phase to determine what, if anything, OpenAI and Microsoft must do — whether that means financial damages directed to the nonprofit, structural changes to the company, or removal of Altman and Brockman from their leadership roles.If OpenAI prevails, it would effectively validate its decade-long transformation and clear a significant legal cloud ahead of any potential public offering. Either outcome is likely to set precedents for how nonprofit-to-for-profit conversions in the technology sector are scrutinized — and how much standing former donors and board members have to challenge them.What is certain is that the testimony of Musk, Altman, Nadella, Sutskever, and Murati will generate extraordinary scrutiny of decisions made in the early, formative years of what has become one of the most influential technology companies ever built. The trial is expected to conclude in late May 2026.For more tech news, visit our <a href="/news">news section</a>.<h2>How This Affects You</h2>The outcome of Musk v. Altman will shape the trajectory of the AI tools — from productivity assistants to health platforms — that hundreds of millions of people rely on every day. At Moccet, we track the developments reshaping how technology intersects with your health, focus, and performance. Whether this trial restructures OpenAI or vindicates its current path, the AI landscape you navigate is being decided in real time. <a href=\"/#waitlist\">Join the Moccet waitlist to stay ahead of the curve.</a>", "excerpt": "The Musk v. Altman trial opened April 28, 2026, in Oakland federal court, putting OpenAI's $850 billion valuation and its founding nonprofit mission under judicial scrutiny. Elon Musk is seeking $150 billion in damages and demanding OpenAI revert to a nonprofit structure, while OpenAI calls the suit 'a baseless and jealous bid to derail a competitor.' The four-week trial could reshape the future of artificial intelligence — and corporate accountability in tech.", "keywords": ["Musk vs Altman trial", "OpenAI lawsuit", "OpenAI nonprofit conversion", "Elon Musk OpenAI", "AI corporate accountability"], "slug": "musk-vs-altman-trial-openai-future-2026" } ```

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