Forensic Report Claims Chinese AI Labs Trained Models on Nvidia Blackwell Chips

A forensic report by a former OpenAI engineer says Blackwell-generation Nvidia hardware left traces in models from DeepSeek, Moonshot AI, MiniMax and Ant Group, despite U.S. export controls. The claims come from a single report, so they have not been independently verified in the details provided. If confirmed, the findings would suggest that chip restrictions are not fully preventing access to the most advanced Nvidia hardware.

Why it matters: If the claims hold up, they bear directly on how effective U.S. chip export controls are and on the compliance and supply-chain risks for companies that depend on Nvidia hardware and Chinese model providers.