Meta's Muse AI agent runs errands from its own sandboxed browser

Meta has released Muse, a personal AI agent that runs multi-step errands rather than just answering questions. It sends emails, books travel, fills forms and negotiates via its own browser. Muse uses Meta's new Muse Spark model inside an isolated virtual machine, with a Sentinel agent vetting internet requests. The US rollout covers iOS, Android and the web, free, with $20 and $100 monthly tiers.