Mark Zuckerberg and Elon Musk were once poised to fight in a cage match in 2023, before Zuckerberg called it off, saying that Musk was "not serious." Now, the two billionaires have gone from the brink of battle to using each other's technology.

Meta revealed more details of Community Notes, and said that it incorporates the same open-source algorithm that powers X’s crowdsourced feature.

Meta will begin testing its Community Notes feature, which replaces fact-checking with crowdsourced commentary, next week. It relies on X's open-source tech.

The Facebook founder has grown closer to Trump in recent months, attending his inauguration and co-hosting an inaugural reception.

Meta Platforms Chief Executive Mark Zuckerberg held meetings at the White House with Trump administration officials on Wednesday, according to a source familiar with the matter. “Mark’s continuing the meetings he's been holding with the administration on American technology leadership,