By Stephen NellisSAN FRANCISCO, Jan 28 (Reuters) - U.S. chipmaker Nvidia helped China's DeepSeek hone artificial intelligence models that were later used by the Chinese military, the chairman of a U.S. House of Representatives committee said in a letter seen by Reuters ​on Wednesday. At the time Nvidia provided DeepSeek help, Moolenaar wrote, there was no public indication that DeepSeek's technology was being used by China's military. Just like it would be nonsensical for the American military to use Chinese technology, it makes no sense for the Chinese military to depend on American technology," Nvidia said in a statement. The H200 ⁠is more powerful than the H800 chips DeepSeek used. Advertisement AdvertisementAdvertisement Advertisement"Chips sales ‌to ostensibly non military end users in China will inevitably result in a violation of the military end use restrictions," ‌he added.