Export controls need to be tightened after revelations the Chinese company used Nvidia technology, the leaders of a congressional committee said.

Two U.S. Congress members are calling on President Donald Trump's administration to consider restricting the export of artificial intelligence chips made by Nvidia, alleging Chinese AI firm DeepSeek has relied on them.

Two US lawmakers are urging tighter export controls on Nvidia's AI chips, fearing China's growing AI capabilities. Their concerns stem from reports that a Chinese firm used these chips — currently outside the scope of U.