Elon Musk acknowledges xAI used OpenAI models to train Grok

Elon Musk admitted under oath in California that his startup xAI used OpenAI's models to train its Grok AI assistant.

Published 14sem2 sources✓ ConfirmedMajor

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The fact

The revelation comes during Musk's lawsuit against OpenAI and its co-founders for breach of contract and mission diversion.

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Auto-synthesis from 2 media sources · identified on May 1, 2026