Meta AI
Muse-Spark-Open-816B-A42B (xhigh)Open weights
Released 2026-10-15 · Data snapshot 2026-10-22
Overall score
63.3
Awaiting benchmarks (insufficient coverage)Benchmark coverage
13.6%
3 third-party benchmarks
Context window
—
tokens
Input price
—
per million tokens
Output price
—
per million tokens
Dimension performance
Knowledge
63.3
Above averageBelow averageAnchored at 50 (reference models’ average); every 15 points ≈ one standard deviation
Benchmark details
Reasoning1 items
FrontierMath (Tiers 1-3)xhigh69.8
Knowledge2 items
GPQA Diamondxhigh88.6
SimpleQA Verifiedxhigh56.6
Multiple reasoning tiers of the same benchmark take the best value; raw scores have different scales and are not comparable across benchmarks.
Score trend
2026-10-202026-10-22
View daily data
| 2026-10-22 | 63.3 |
| 2026-10-21 | 62.5 |
| 2026-10-20 | 62.5 |