OpenAI accuses Chinese AI firm DeepSeek of stealing its content through "knowledge distillation," sparking concerns over security, ethics, and national interests.

Experts say AI model distillation is likely widespread and hard to detect, but DeepSeek has not admitted to using it on its full models.

David Sacks says OpenAI has evidence that Chinese company DeepSeek used a technique called "distillation" to build a rival model.