Meta has released Muse Wonder and Muse Wonder Full, its most capable models to date. Muse Wonder is a frontier model built for personal and professional AI agents, with both models targeting long-running agent work: coding, legal and finance tasks, and computer use. As of October 2026, Muse Wonder is live on the Meta Model API and Muse Code, while Muse Wonder Full is limited to paid Muse Code plans.
TL;DR
- Size: 1M-token context. Input of text, image, video and audio; output of text.
- Runs on: Meta's cloud only, via the API or the Muse Code CLI (macOS, Linux, Windows).
- Performance: Muse Wonder Full leads 6 of 14 rows in Meta's benchmark table, but trails Claude Opus 5.5 on several.
- Best: Muse Wonder scores 85.6 on MemoryBench, the top result among all 5 models listed.
- Worst: Muse Wonder scores 50.0 on ProgramBench, against 70.5 for Claude Opus 5.5.
What Is Muse Wonder?
Muse Wonder follows Muse Spark on Meta's scaling ladder. According to Meta, it was trained at its Prometheus data center with gains across both pretraining and reinforcement learning. Meta credits a larger base model for the improved results on unfamiliar tasks.
via MarkTechPost