Employees at a data training center of Spirit AI at the company’s headquarters in Beijing last week. Artificial intelligence will be the dominant theme of several meetings at the U.N. General Assembly this week.

China’s National Supercomputing Center in Wuxi in 2020. LineShine, a supercomputer in Shenzhen, has been declared the world’s fastest.

The skyline of Beijing. A Chinese firm is working on products that use A.I. to examine location data and internet use to predict who could do or say something critical of the government.

China’s military has stepped up its efforts to acquire artificial intelligence chips despite U.S. restrictions, according to Wirescreen, a software platform.

Choi Seung-ho, right, head of the Samsung Electronics Labor Union, celebrated with a Samsung executive after signing a tentative agreement earlier this month in Suwon, a city south of Seoul.

Outside the Samsung Electronics semiconductor plant in Pyeongtaek, South Korea, on Thursday.

Jensen Huang, Nvidia’s chief executive, after a welcome ceremony at the Great Hall of the People in Beijing on Thursday.

A growing number of national security officials and analysts have begun to liken the intensifying competition between China and the United States over artificial intelligence to the Cold War’s nuclear arms race.

At the Beijing auto show in April, which featured hundreds of electric cars. Chinese electric vehicles are being exported in record numbers.