Mr. Altman, the C.E.O. of OpenAI, said on Tuesday that he worried Elon Musk wanted control of the A.I. lab.

The start-up, which recently released a powerful A.I. model called Mythos and is separately battling with the Pentagon, was previously valued at $380 billion.

Experts and college students used A.I. agents to try to break into and defend computer networks in a national competition. The agents did all right on their own, too.

Anthropic said that Claude Mythos was too dangerous to release to the public. That claim has reopened an old debate over cybersecurity.

OpenAI and Anthropic are opening offices in Washington, hiring lobbyists and spending more than ever to win over federal lawmakers.

A new feature lets you designate someone to be notified if a chat conversation suggests a potential safety concern.

Rip and Beth are back in the highly anticipated Yellowstone spinoff.

If you downloaded iOS 26.5, your device can now access the secure messaging protocol as long as your carrier supports it.

Here are hints and answers for the NYT Strands puzzle for May 13, No. 801.

Here are some hints and the answers for the NYT Connections puzzle for May 13, No. 1,067.