Model profile
Muse Spark
Metadeveloper
2026-04-08release date
#22 / 267overall rank
3eval lineages
2discovery sources
Evidence summary
Muse Spark has an estimated overall rank of #22; its 90% source-sensitivity interval is #8–#123. Its behavior-only rank is #18; company governance moves the combined estimate to #22. Published evidence spans 3 evals and 3 of 7 behavior components. Its strongest relative result is AA-Omniscience (hallucination_rate, #109 of 311); its weakest is Gray Swan indirect prompt injection (15 attempts) (attack_success_probability_k15_pct, #6 of 13).
Compare this model
Only models sharing at least one published sub-eval are listed.
Official and reference links
- Artificial Analysis ↗muse-spark
- Official model page ↗Exact model document · Meta · first party
Published eval results
Rank is within that sub-eval. Black marks the observed result; the grey dot marks the value implied by the global rank. Values stay on each source’s native scale.
| Eval / sub-eval | Rank | Value | Distribution | Better | Source |
|---|---|---|---|---|---|
| AA-Omnisciencehallucination_rate | #109 / 311 | 0.7319 | ↓ lower | Source ↗official | |
| FORTRESSaverage_risk_score | #18 / 49 | 20.22 | ↓ lower | Source ↗official | |
| Gray Swan indirect prompt injection (15 attempts)attack_success_probability_k15_pct | #6 / 13 | 16.5 | ↓ lower | Source ↗official |