General Motors and a few other companies make as much as 40 percent of their North American cars and trucks in Canada and Mexico, leaving them vulnerable to tariffs.

Operator, a new computer-using tool from OpenAI, is brittle and occasionally erratic, but it points to a future of powerful A.I. agents.

The owner of Facebook and Instagram is incorporated in Delaware, but is considering a change. Its corporate headquarters would remain in Silicon Valley, people with knowledge of the matter said.

Since the Chinese company’s chatbot surged in popularity, researchers have documented how its answers reflect China’s view of the world. Some of its responses amplify propaganda Beijing uses to discredit critics.

“DeepSeek is a really odd duck.”

Commercial planes have technology that helps prevent crashes — but it has limitations, which was highlighted by the accident in Washington.

Operator, a new computer-using tool from OpenAI, is brittle and occasionally erratic, but it points to a future of powerful A.I. agents.

The tech giant’s sales of apps and services helped profit grow 7 percent from a year ago, even as the company contended with slumping sales in China.

In a meeting with Meta employees on Thursday, Mr. Zuckerberg also doubled down on recent changes to the company’s online speech policies and ending its diversity initiatives.

As Mark Zuckerberg and other tech titans have embraced President Trump and muffled internal dissent at their companies, their mostly left-leaning employees have objected with subtle acts of defiance.

The San Francisco start-up claims that its Chinese rival may have used data generated by OpenAI technologies to build new systems.

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.

The Silicon Valley giant was criticized for giving away its core A.I. technology two years ago for anyone to use. Now that bet is having an impact.

President Trump had sued Meta and other tech firms in 2021, arguing that he had been wrongfully censored by them. Meta also reported revenue and profit growth for the fourth quarter.

A new document examines the opportunities and risks of artificial intelligence and calls for “moral and ethical considerations” to be enshrined in all of its applications.

Google said it would follow the Trump administration in renaming the Gulf of Mexico once the new name is updated in government sources.

Michael Kratsios, who served in the White House and Defense Department in the first Trump administration, is a policy specialist on artificial intelligence.

The tech giant’s revenue was up 12 percent to $69.6 billion, but investors are showing their nerves after a long boom for tech stocks.

Oil and gas executives welcomed President Trump’s early moves on energy policy, but many said they did not plan to increase production unless prices rose significantly.