Meta announced Muse Wonder and Muse Wonder Full on October 12. Its newsroom says Wonder is available through the Meta Model API and Muse Code, while Wonder Full is available to Muse Code subscribers. The distinction for personal-agent users is important: the announcement says Wonder will power Muse soon, starting with subscribers. It does not say every existing Muse account has already switched.
The company describes Active Memory as carrying relevant context across conversations and Active Focus as persisting through difficult tasks, recovering from errors and checking in before important actions. These are vendor descriptions, not independent performance findings. Meta also says an additional safety-evaluation report is forthcoming; this article does not treat that promised report as already published.
Editorial take: Separate model availability from an upgrade to your everyday agent. Builders have a stated access route, but Muse users should look for an account-level rollout notice before attributing a changed answer to Wonder. When access arrives, compare a repeatable, low-risk workflow rather than assuming stronger model claims guarantee better completion.