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Elon Musk and Sam Altman face off in OpenAI trial
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Elon Musk and Sam Altman face off in OpenAI trial

Apr 28, 2026

A month-long federal trial begins in Oakland, California between Elon Musk and OpenAI, the AI company he co-founded with Sam Altman in 2015 as a non-profit to ensure artificial general intelligence benefits humanity. Musk claims Altman swindled him out of approximately $40 million and betrayed OpenAI's original mission by transitioning to a for-profit structure focused on maximizing profits for Microsoft, now valued at $157 billion and approaching an $850 billion public listing after ChatGPT's explosive 2022 launch. Musk seeks billions in wrongful gains and Altman's removal, while OpenAI counters that Musk is motivated by jealousy and regret after leaving in 2018 following a power struggle, and is trying to derail a key competitor to his own lagging AI startup xAI. A nine-person jury will hear testimony from both tech billionaires, Microsoft CEO Satya Nadella, and former OpenAI scientists.

Origins and breakdown of the Musk-Altman partnership at OpenAI

  • ▪Elon Musk left OpenAI in 2018 following a reported power struggle with Sam Altman
  • ▪Elon Musk and Sam Altman were reportedly introduced by a Silicon Valley investor in 2012
  • ▪Elon Musk and Sam Altman co-founded OpenAI as a non-profit in 2015

Legal battle over OpenAI's shift from non-profit to for-profit

  • ▪Elon Musk alleged that OpenAI strayed from its core mission and was focused on maximising profits for Microsoft when Elon Musk sued in 2024
  • ▪Elon Musk said Elon Musk donated around $40 million to OpenAI after being manipulated by the defendants

Public feud and attempts to acquire or control OpenAI

  • ▪Sam Altman posted on X that OpenAI would buy Twitter for $9.74 billion in response to an offer from Elon Musk
  • ▪Sam Altman was briefly ousted as chief executive of OpenAI in late 2023 on concerns that Sam Altman misled members of the board
  • ▪OpenAI released ChatGPT in 2022, which reached 100 million monthly active users within months

Perspective of Elon Musk

  • ▪Elon Musk believes he was manipulated by OpenAI defendants into donating around $40 million to the organization

5 sources

Apnews
Elon Musk and OpenAI CEO Sam Altman head to court in high-stakes showdown over AI
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Npr
Musk vs. Altman: Tech CEOs head to court over the fate of OpenAI
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Edition
Elon Musk and Sam Altman are about to face off in court. Is an impartial jury even possible? | CNN Business
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Businesschief
Elon Musk and Sam Altman Head to Court Over OpenAI’s Future
View source article
Bbc
Elon Musk-Sam Altman trial: Tech billionaires take their toxic AI row to court
View source article

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