In his first week back in office, Donald Trump gathered tech leaders to announce a half-trillion-dollar project called Stargate. The flashy price tag caught plenty of attention, but Stargate also has spurred controversies about Trump’s relationship with Silicon Valley and raised questions about the value of energy-guzzling data centers in the age of AI.

DeepSeek is a new artificial intelligence chatbot that’s sending shock waves through Wall Street, Silicon Valley and Washington. The app, name after the Chinese start-up that built it, rocketed to the top of Apple’s App Store in the United States over the weekend.