Mark Zuckerberg on how engineers made him return to Musk's X after 3 years in 2026
Mark Zuckerberg has resumed posting on X after a three-year hiatus to reach specific engineering and research communities. He maintains that while Threads is successful, cross-posting is necessary to engage with AI experts who remain active on the rival platform.
Why it matters
It highlights the ongoing fragmentation of social media audiences and the strategic necessity for tech leaders to engage across competing platforms to capture specialized talent.
Facebook founder Mark Zuckerberg has resumed his activity on Elon Musk’s social network X in 2026, ending a three-year hiatus away from the rival microblogging platform. He originally restarted posting on the platform to announce news regarding Muse Spark 1.1 AI model. Since then, Meta CEO has been a regular on the microblogging website. His latest post was on September 9 when he introduced “Muse, the personal agent that understands your goals and works 24/7 to get things done for you.” Around the same time, he was asked on a podcast why he chose to cross-post updates on an opposing network despite running Meta’s direct alternative, Threads.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in