In a federal courtroom in Oakland, California, Elon Musk raised his voice. “Without me, OpenAI wouldn’t exist!” The Tesla CEO’s outburst came during heated cross-examination on April 29, 2026, as OpenAI’s lawyer William Savitt pressed him on his early contributions to the company he helped launch. Musk didn’t stop there. “I contributed my reputation!” he shot back, insisting he named the outfit and that such efforts carried real weight. TechRadar captured the moment, which has since defined the personal edge to this sprawling trial.
The case, filed by Musk in 2024, accuses OpenAI CEO Sam Altman, president Greg Brockman, and Microsoft of breaching the lab’s founding nonprofit charter. Musk seeks $150 billion in damages—funneled to OpenAI’s charitable arm—plus Altman’s ouster and a forced return to nonprofit roots. A judge dismissed fraud claims last week but let breach of trust and unjust enrichment charges proceed before a nine-person jury under Yvonne Gonzalez Rogers. Proceedings, expected to last four weeks, kicked off April 27 with jury selection. No special treatment for the billionaires, the judge warned.
Musk took the stand first, testifying over three days—more than seven hours total. He called himself a “fool” for wiring $38 million in seed funding, far short of his pledged “up to $1 billion.” That cash paid rent at the Pioneer Building, a space Musk leased for Neuralink and sublet to OpenAI. “$38 million is still a lot of money,” he told the court, arguing his involvement jump-started everything. CNBC live updates detailed the sparring, where Savitt grilled Musk on unfulfilled promises, only for the plaintiff to counter that reputation and vision mattered more than checks alone.
But. OpenAI paints a different picture. Their opening salvos highlighted Musk’s 2017 exit, when he demanded majority equity control or a for-profit pivot under his lead—demands the board rejected. Brockman, testifying May 4, revealed his own stake now tops $30 billion. He claimed Musk backed commercialization but balked at not running the show, even floating $80 billion to fund a Mars city. OpenAI lawyers flashed a pre-trial email from Musk to Brockman, probing settlement just days before opening arguments. NBC Bay Area reported the exchange, underscoring Musk’s late olive branch amid escalating stakes.
Week two brought fresh drama. Brockman faced cross-examination on a 2017 equity grant worth $10 million, allegedly hidden from Musk while Altman courted his cash. Musk’s family fired off a baffled “???” email; Brockman shrugged it off as Musk being “very busy… hard to reach.” Shivon Zilis, Neuralink exec and Musk confidante, emerged as a flashpoint. Brockman named her a key proxy in 2017 talks over for-profit shifts, despite her ties to both sides dating back years. X posts dissected her role, with some calling her a “double agent” filtering info to sideline Musk. OpenAI plans $50 billion in compute spend for 2026, Brockman added—a scale Musk warns strays from safety-first origins.
Musk’s broader grievances echo Terminator fears. He testified OpenAI’s profit chase with Microsoft risks unchecked AGI, potentially dooming humanity. “It’s not OK to steal a charity,” he said simply on day one. CBS News noted his regrets over funding assurances from Altman that the lab would stay nonprofit. Emails and texts now flood exhibits: Musk’s ultimatums, Altman’s replies, Zilis’s “I’ll work it for ya.” The Verge catalogs them, painting a saga of fractured alliances.
OpenAI counters that nonprofit constraints stifled progress. ChatGPT’s 2022 launch demanded billions; a for-profit arm unlocked Microsoft billions. Altman sat stone-faced through Musk’s testimony, notebook in hand. His side argues Musk quit when he couldn’t dominate, later launching xAI to compete. A pre-trial text from Musk to Brockman surfaced late Sunday, ammo for defense claims of selective outrage. Wall Street Journal covered Musk’s wrap-up, with fixer Jared Birchall backing his boss on early deceptions.
So what now? Trial resumes May 5 after a weekend break, with audio streaming on YouTube. Witnesses like AI professor Stuart Russell loom. Musk wants OpenAI rewound; Altman eyes IPO dreams. Stakes tower over AI’s path—nonprofit guardrails or venture-fueled sprint? Musk’s $38 million bet birthed a titan valued at hundreds of billions. He claims betrayal. OpenAI calls it evolution. Jurors weigh egos, emails, and existential warnings. The verdict could redraw Silicon Valley’s power map.
One outburst lingers. Without Musk? No OpenAI. History’s verdict waits.


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