Meta Launches Muse Wonder and Muse Wonder Full: Benchmarks, Pricing and How to Use It

Meta launched Muse Wonder and Muse Wonder Full on October 12, 2026, introducing agent models with 1M-context. Muse Wonder is priced at $4 and $20 per million tokens via Meta Model API. Muse Wonder Full, available on Muse Code plans, leads DeepSWE and SWE-Marathon benchmarks. These models aim to carry work forward more effectively, reducing the need to repeatedly explain changes to briefs, ensuring plans remain updated across multiple chat windows and services during complex task execution.