Meta CEO Mark Zuckerberg announced on Wednesday that Muse, the company's personal AI agent app launched in September, has surpassed 10 million users. Speaking during Meta's third-quarter earnings call, Zuckerberg said growth momentum "remains strong," with shopping emerging as the most common use case. More than a quarter of Muse users make purchases through the app, with an average transaction value exceeding $200. Following the announcement, Meta's stock rose as much as 5% in after-hours trading. The app quickly topped Apple's App Store charts after its release, marking an early success for Zuckerberg's heavy investment in artificial intelligence.