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

A former researcher has identified traces of restricted Nvidia Blackwell chips within the software architecture of six Chinese artificial intelligence models, including those from DeepSeek and Ant Group. These findings suggest that developers in China are accessing high-end hardware despite strict United States export controls aimed at limiting the country's access to advanced computing power. This development highlights ongoing challenges in enforcing chip sanctions and raises questions about how restricted technology is being integrated into international AI development.