White House official says details on AI chip export rule coming soon The Biden administration could shed more light on a possible new rule for exporting high-performance artificial intelligence chips to China "relatively soon," a White House official said Friday. Tarun Chhabra, an official with the National Security Council who focuses on technology issues, said letters sent from the U.S. Department of Commerce to Nvidia Corp and Advanced Micro Devices Inc last month asking them to stop shipments of chips that can be used for applications like natural language processing and nuclear weapons research were likely precursors to further regulation. Speaking at an speaking at an event hosted by the Brookings Institution, he did not say what form that regulation might take.