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News/Elon Musk confirms xAI used OpenAI’s models to train Grok
theverge
PublishedApril 30, 2026 at 6:16 PM
—neutral

Elon Musk confirms xAI used OpenAI’s models to train Grok

Elon Musk confirms xAI used OpenAI’s models to train Grok
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In a federal courtroom in California on Thursday, Elon Musk testified that his own AI startup, xAI, has used OpenAI's models to improve its own. The matter at question is model distillation, a common industry practice by which one larger AI model acts as a "teacher" of sorts to pass on knowledge to

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