Meta had delayed releasing Muse, its A.I. agent app, for months over safety concerns. Then new competition forced Mr. Zuckerberg’s hand.

On social media, Meta’s chief executive appeared to jab at Anthropic by saying that leading A.I. labs should be focused on safety rather than improving their own technology.

Muse, Meta’s new A.I. agent, acts as a personal digital assistant that connects to Facebook and Instagram, as well as third-party apps such as Spotify and OpenTable.

The release of Muse Glimmer, a model that can be freely downloaded and modified, is likely to intensify a debate over whether A.I. should be restricted.

The penalty, imposed by a state judge, is on top of a $375 million fine ordered by a jury that found Meta misled users about the safety of its platforms.

Seller is part of the Silicon Valley company’s strategy to innovate on its original social network.

Users and Hollywood agencies raised privacy and copyright concerns about the new tool, Muse Image.

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

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

The flaw, which Meta said it had fixed, allowed anyone to take over accounts using a bug in the company’s new artificial intelligence software.

The changes, after Meta’s legal losses in two child safety cases, are aimed at limiting harmful content shown to teenagers on Instagram, Facebook and Messenger.

Nature Geoscience, Published online: 01 June 2026; doi:10.1038/s41561-026-01986-3

Model analyses and projections of sediment heatwave duration, intensity and frequency across 41,499 representative lakes suggest that lake sediment heatwaves are more persistent and frequent than lake surface heatwaves and will intensify under global warming.