More than 10 million users in the United States and Canada set up Meta Muse personal AI assistant accounts within six weeks of its September 2026 launch.

From the articleZuckerberg commits to staying in California for 8 years as part of creation of new class of Meta shares: Live updatesAlso in Meta's Muse AI agent achieves strong growth, company introduces new shares to power investments | Reuters, Meta wants to pay for its broad AI buildout with a newly created class of stock, Meta to create a new class of shares to fund AI push