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

Elon Musk testified that xAI has partly used other AI models, including OpenAI’s, to help train Grok.

He described it as standard practice for one AI system to validate or train another.

The case centers on model distillation, where rivals say using outputs from other models may be unauthorized copying.

OpenAI, Anthropic, and Google have increasingly pushed back against similar practices by competitors.