Former OpenAI researcher says six Chinese AI models were built on banned Nvidia chips

Former OpenAI researcher Andrew Karpathy said six Chinese AI models were trained on Nvidia chips barred under U.S. export controls, pointing to possible gaps in enforcement. The claim covers models from Chinese developers built on restricted hardware, though the article did not specify which chips, token counts, or training costs were involved. The finding matters because export restrictions are a key lever in U.S.-China tech policy, and evidence of banned chips reaching Chinese AI labs could prompt tighter rules or audits. Watch for official responses from Nvidia and U.S. regulators, plus any clarification of which models and chip generations are affected.