A hands-on comparison by 字母AI, republished by 钛媒体 and 36氪, tested Meta's Muse against Dot inside ChatGPT on tasks including adding Apple Calendar events, syncing health data, cleaning a 126 mailbox, posting to social media, finding a restaurant on Dianping, picking shoes on JD and building a shareable five-person travel expense ledger. Muse completed the calendar and health tasks from an iPhone after a single authorization prompt and batch-deleted 191 matching emails; Dot could not operate the iPhone calendar directly and needed a connected Mac, but it spotted a timestamp inconsistency in an email and drafted a reply, and it delivered a ledger that recalculated correctly and synced edits made by a friend, while Muse's ledger reverted on refresh and could not sync. The review cites a Similarweb estimate of about 2.18 million daily active users for Muse on October 5, and notes both agents still stumble on Chinese sites that require logins and CAPTCHAs; the reviewer also acknowledges that in some tasks the two ran in different environments, with Dot using the user's Mac and Muse a cloud computer.