Meta's first flagship is out: Muse Wonder, plus a Full variant. 1M context, takes text/image/audio/video input. Closed weights. It ships with Active Memory (context carries across chats) and Active Focus, which sticks to a long-running task instead of drifting. Artificial Analysis Intelligence Index: 56/52, against Opus 5.5's 58. Leads SWE-Marathon at 57.5 and Harvey LAB at 13.1. Trails other flagships on Terminal-Bench 4.0 and HealthBench Pro. API is $4/$20 per million tokens, same as Opus 5.5. Full has no API at all, Muse Code subscribers only.
Meta's first flagship is out: Muse Wonder, plus a Full variant.