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, Venture Capital Investors Face Questions About Their A.I. Bets

Venture capitalists plowed money into A.I. start-ups like OpenAI and Anthropic. But the rise of the Chinese A.I. start-up DeepSeek has called that funding frenzy into question.

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.

Biden Targets China’s Chip Industry With Wider Trade Bans

New rules prohibit the sale of certain types of chips and equipment to China, in an effort to close loopholes and cement the Biden administration’s legacy in countering the U.S. rival.

TSMC Chips Ended Up in Devices Made by China’s Huawei Despite U.S. Controls

The U.S. government has tried to keep Chinese companies from obtaining certain advanced technologies, but concerns have been growing that some products may have been routed to Huawei.