AdvertisementSKIP ADVERTISEMENTYou have a preview view of this article while we are checking your access. When we have confirmed access, the full article content will load.How Chinese A.I. Start-Up DeepSeek Is Competing With Silicon Valley GiantsThe company built a cheaper, competitive chatbot with fewer high-end computer chips than U.S. behemoths like Google and OpenAI, showing the limits of chip export control.DeepSeek’s engineers said they needed only about 2,000 specialized computer chips fr...