Meta launched Muse Wonder and Muse Wonder Full on October 12 as frontier models for personal and professional agent tasks. The company says Active Memory retrieves goal-relevant information across conversations and multi-day work, while Active Focus tries alternate paths, recovers from errors and asks for clarification or confirmation before important actions. Muse Wonder is available through the Meta Model API and Muse Code; Full starts with Muse Code subscribers before broader Muse rollout. Use cases span leases, insurance, finance, health and coding, but a full safety report is still pending and performance needs independent testing. Once persistent memory reaches messages, calendars and documents, permission boundaries and privacy become product gates.