Muse Wonder

Muse Wonder is the frontier model Meta Superintelligence Labs launched on October 12, 2026, and the first Meta model priced like a top-tier closed model rather than a value play. On the Meta Model API it runs as muse-wonder-1.0 at $4 per million input tokens, $0.20 cached, and $20 output, with a 1M token context window, which lands it on exactly the Claude Opus 5.5 rate card and well under GPT-6 Astra at $10 / $50. The catch is the split release: the stronger Muse Wonder Full is available only to Muse Code subscribers, not through the API, and it is the variant the independent boards actually rank. Artificial Analysis puts Muse Wonder Full at 56 on its Intelligence Index, tied for second, and Vals AI has it fifth on the Vals Index at 64.57 percent. Meta published no benchmark table at launch and says a full safety report is coming. If you are buying through the API, you are buying the smaller model, so test it on your own work before assuming the leaderboard numbers carry over.