One shared mission. One $800 billion company. And one very messy divorce.
One billionaire and one soon-to-be trillionaire walked into a federal courtroom in Oakland, California last week. No publicists. No carefully managed statements. Just Elon Musk, Sam Altman, a federal judge, and nine jurors watching two of the most powerful men in tech try to out-narrative each other under oath.
Musk is suing OpenAI for $134 billion. For context, that is only $20 billion short of what he made from Tesla last year. His case: Altman took a charity Musk built, turned it into an $800 billion empire, and pocketed the upside. Before a single witness took the stand, OpenAI had already summed up their entire defence: “a baseless and jealous bid to derail a competitor.”
Then came the detail everyone skipped over. Musk filed 26 claims. The night before trial, he quietly dropped 24. No press release. No explanation. He arrived with two claims left, a live audience of 240 million followers on his own social media platform, and no intention of staying offline. He spent the week posting from inside the courthouse, calling Altman “Scam Altman” and Brockman “Greg Stockman” in real time. The judge threatened a gag order before the jury even sat down. “How can we get things done without you making things worse outside the courtroom?” Both sides agreed to dial it back. That same morning, Musk posted: “Scam Altman and Greg Stockman stole a charity.”
To understand why any of this happened, you need to go back to 2015.
A Dinner, A Dream, and Google as the Villain:
Musk and Altman met at the Rosewood Hotel in Silicon Valley over one shared obsession: keeping AI out of Google’s hands. They co-founded OpenAI as a nonprofit, open, safe, and answerable to humanity. Musk pledged up to $1 billion. He donated $38 million. He would later call himself “a fool” for it on the witness stand.
The Power Grab That Ended Everything:
By 2017, the math stopped working. Building AGI costs billions a year and a nonprofit cannot sustain that. Musk wanted majority equity, board control, and the CEO title. When rejected, he proposed folding OpenAI into Tesla. Also rejected. In early 2018 Musk lost the power struggle and left. OpenAI’s attorney later described it as Musk “taking his marbles” and going home.
The Billion Dollar Offer He Walked Away From:
When OpenAI restructured, Altman offered Musk equity. The texts were shown to the jury. Altman wrote: “I agree this feels bad. We offered you equity which you didn’t want at the time. We are still very happy to do so.” Musk turned it down. Said it felt like a bribe. That equity is now worth billions. Whether that makes him principled or the most expensive kind of stubborn is a matter of perspective.
Musk did not move on. In 2023 he founded xAI and built Grok. In February 2025 he led a $97.4 billion bid with for-profit investors to buy OpenAI’s nonprofit assets. Altman said no. So Musk sued.
OpenAI’s Attorney Said the Quiet Part Out Loud:
William Savitt walked up to that jury and said what everyone was thinking. “We are here because Mr. Musk didn’t get his way at OpenAI. He quit, saying they would fail. But my clients had the nerve to go on and succeed without him.” Not a betrayed founder. A disgruntled gambler who bet wrong and spent years trying to flip the table.
Three Days on the Stand and Nothing Went to Plan:
Musk clashed with Savitt at every turn, accusing him of asking questions “designed to trick.” He tried to correct the attorney on courtroom procedure. The judge reminded the jury Musk is not a lawyer. Musk shot back that he had “technically” taken law 101. The courtroom laughed.
Day three opened with Musk’s attorney declaring AI could kill us all. The judge cut him off, then noted the irony: the man warning about AI extinction is building an AI company. “I suspect a lot of people don’t want to put the future of humanity in Mr. Musk’s hands. But it doesn’t matter.”
It also came out that xAI used OpenAI’s own models to train its technology. The man suing OpenAI for stealing a charity was using OpenAI’s work to build his competitor. He sees no contradiction. The courtroom did.
Savitt’s cleanest question: Musk’s $97.4 billion bid was backed by for-profit investors. If going for-profit was theft, what exactly was he trying to buy? Musk: “There’s nothing wrong with a for-profit organisation. You just can’t steal a charity.” Asked why he never started a new nonprofit, he said: “I thought I had. But they stole it.”
The Word That Sank the Whole Case:
Reuters noted that the word “charity” does not appear once in OpenAI’s 2015 founding blog post. The document says nonprofit. Musk said charity dozens of times on the stand. His entire case rests on a legal distinction built around a word the founders never used.
What Happens Next:
If Musk wins, OpenAI reverts to nonprofit status, Altman and Brockman are out, and the most anticipated tech IPO in years disappears overnight.
If Musk loses, OpenAI keeps its structure, its IPO, and its $800 billion valuation. Musk walks away from a decade of feuding and a failed $97.4 billion takeover with nothing but a very expensive lesson in the difference between a nonprofit and a charity. The kind of lesson that costs $134 billion to learn and still does not guarantee you pass.
The judge decides. Not the tweets. Not the 240 million followers. Not the Terminator references.
Two men. One company. One word that was never written down. And nine jurors in Oakland who get to decide what any of it means.
