TechCheck Final Full Day of Testimony in Musk vs. OpenAI Trial 5/13/26
May 13, 2026
A fast-paced rundown of the final day in the high-stakes Musk vs. OpenAI court fight. Discussions cover Altman’s defense narrative and tense cross-examination moments. Financial disclosures and massive potential remedies get unpacked. Conversation on how the trial could reshape OpenAI’s IPO timeline and competitive focus rounds out the show.
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Altman Says Musk Tried To Control Then Abandoned OpenAI
- Sam Altman framed Musk as attempting control and then abandoning OpenAI rather than rescuing it.
- Altman said Musk wanted a 90 percent stake, predicted zero percent chance of success, then left to start Tesla's AI effort and XAI.
Altman Says OpenAI Was Left For Dead
- Altman testified Musk thought OpenAI would fail and gave it a zero percent chance of success.
- Altman described being "left for dead" as Musk pursued an AI effort inside Tesla and later XAI at SpaceX.
Altman's Financial Ties Revealed During Cross Examination
- Cross-examination focused on Altman's character and past statements about equity and honesty.
- Altman admitted exposure through Y Combinator investments worth about $2 billion in companies doing business with OpenAI.