The spending has hurt the Silicon Valley giant’s cash flow, which turned negative. Meta said it would issue a new class of stock to help it raise more money.

Joel Kaplan, a former adviser to George W. Bush known for his Republican ties, had helped Meta build its relationship with the Trump administration.

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

Aaron Sorkin’s sort-of sequel to the 2010 “Social Network” dramatizes a whistle-blowing case at Facebook. Here’s what to know.

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.

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 experimental app, internally called “Arena,” would be independent of Facebook and Instagram. It could compete for attention with Polymarket and Kalshi, the biggest prediction markets.