Muse Wonder
Muse Wonder is an API-only (closed weights) language model from Meta, released October 12, 2026. The context window is 1M tokens. On the Epoch Capabilities Index it scores 161.7, rank 15 of 256 rated models. API price: $4 input / $20 output per million tokens.
Fourteen months ago, we began a ground-up overhaul of our artificial intelligence efforts. In that time, we’ve gone from rebuilding our stack from first principles to pushing the frontier. When we introduced Muse Spark, we outlined our approach to predictable, rigorous scaling.
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Strengths by category
ModelTape's 0–100 fit on Epoch AI benchmark results.
| Category | Score | Based on |
|---|---|---|
| Math | 72.8 | ProofBench, OTIS Mock AIME 2024-2025, FrontierMath-Tiers-1-3-v2-Private, FrontierMath-Tier-4-v2-Private |
Benchmark results
| Benchmark (Epoch AI) | Score |
|---|---|
| OTIS Mock AIME | 99.4% |
| FrontierMath (Tiers 1–3) | 86.4% |
| ProofBench | 84.0% |
| FrontierMath-Tier-4-v2-Private | 70.7% |
| Mystery Game Puzzles | 46.0% |
| MirrorCode | 45.6% |
| Furniture Assembly | 34.5% |
| EBR-bench | 31.4% |
Links
Announcement · Epoch AI benchmarks
Models with a similar score
Claude Opus 5 · Claude Fable 5 · GPT-6 Sol · GPT-5.6 Sol · GPT-5.5 Pro · Kimi K3.1 Pro · GPT-5.6 Terra · Claude Haiku 5.5
More from Meta
Muse Ember · Muse Spark Open · Muse Wonder Full · Muse Spark 1.3 · Muse Spark 1.3 Contributor · Muse Glimmer · Muse Glimmer 30B assistant · Muse Spark 1.2