At an event in Washington, partisanship took a back seat as elected officials, religious leaders, parents and artists called for reining in artificial intelligence.

Gov. Gavin Newsom signed a bill that prohibits social media platforms from providing addictive features to users under 16, the first law of its kind in the nation.

The move lifts a rule that said a single television-station owner could not reach more than 39 percent of U.S. households.

OpenAI said that a coalition of states had opened an investigation over a wide range of its practices, including its handling of user data, safety of minors and advertising activities.

In a lawsuit, the tech giant accused the group of using Google’s Gemini system to create hundreds of fake corporate and government websites.

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.

Brendan Carr, the chairman of the Federal Communications Commission, has greenlighted regulatory requests for the company’s Starlink satellite internet service and lavished praise on its chief executive.