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.

After DeepSeek Upended the Market, Is It Worth Investing in A.I.?

After the arrival of a less costly A.I. model from China, U.S. markets and academics are wrestling with the ultimate economic value of the technology.

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.

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.