Microsoft and Nvidia Take a Quieter Approach to Trump

Other big technology companies have been boisterous in their courtship of the new administration. But Nvidia and Microsoft have avoided the Washington spotlight.

What is DeepSeek? And How Is It Upending A.I.?

How did a little-known Chinese start-up cause the markets and U.S. tech giants to quake? Here’s what to know.

Biden Administration Adopts Rules to Guide A.I.’s Global Spread

New rules aim to keep advanced technology out of China and to ensure that cutting-edge artificial intelligence is developed by the United States and its allies.

Three Mile Island Is at the Center of Efforts to Expand Nuclear Capacity to Meet Rising Power Demand

The Pennsylvania plant, site of the worst U.S. nuclear energy accident, is at the forefront of efforts to expand nuclear capacity to meet rising electricity demand.

Behind OpenAI’s Audacious Plan to Make A.I. Flow Like Electricity

Sam Altman, OpenAI’s chief executive, is talking to the United Arab Emirates, Asian chipmakers and U.S. officials to expand the computing power needed to build artificial intelligence.