The disclosure followed OpenAI’s report last week that its own artificial intelligence had hacked into the network of an online library.

Claude Mythos Preview discovered new attacks in testing against weakened cryptographic algorithms, which protect online financial transactions, private communications and more.

Anthropic and OpenAI are clashing with the rest of the tech industry over whether “open-source” models from China should be freely available or restricted.

In our experiment, we deployed A.I. “agents” to act as office workers, and found that they were capable of performing some of the tasks we assigned, but not all of them.

It can be unsettling what Gemini and ChatGPT have figured out about you and how easily your privacy can be punctured. Here’s how to find out.

The decision by European Union regulators is a response to fears that Google will use its vast Android user base to gain an edge in A.I.

A.I. chatbots are not just a propaganda tool for violent extremists but are aiding in bomb construction and attack planning, new research finds.

Federal officials are urging the lone major tech company holdout to allow government safety evaluations, weeks after ordering Anthropic to pull its latest model.

A recent episode underscored the Trump administration’s increasing reliance on advanced A.I. systems for cybersecurity even as it battles a leading U.S. developer.

Artificial intelligence is expensive to use, many companies discovered. That has led to a new era of saving costs.

Workers at the artificial intelligence company have been puzzled and increasingly concerned by the administration’s move to limit their latest A.I. models.

The administration’s surprise restrictions Friday cut off foreign access to Anthropic’s latest models and sparked another round of finger pointing.

The company said on Friday night that the federal government had ordered limits on its Mythos and Fable 5 A.I. systems, citing national security concerns.

Strong investor interest in SpaceX could be good news for the A.I. rivals, which have signaled that they, too, intend to go public this year.

Two Times tech reporters and their editor talk about assessing the sky-high valuation of the rocket and satellite maker, the potential economic impact of its public debut and the role of the world’s richest man in it all.

President Trump touched on what is an increasingly hot topic in Washington: how average Americans can get a piece of the tech industry’s A.I. windfall.

Called Claude Fable 5, it is twice as expensive as the company’s previous flagship system.

The company hopes to raise billions in a highly anticipated public offering that could unlock a new generation of tech industry wealth.

“We are on track to see what might be the three biggest I.P.O.s of all time.”

When you turn A.I. agents loose on your finances, email and customers, what could possibly go wrong?