Model profile
Muse Spark 1.1
Metadeveloper
2026-07-09release date
#10 / 267overall rank
11eval lineages
1discovery sources
Evidence summary
Muse Spark 1.1 has an estimated overall rank of #10; its 90% source-sensitivity interval is #5–#186. Its behavior-only rank is #3; company governance moves the combined estimate to #10. Published evidence spans 11 evals and 7 of 7 behavior components. Its strongest relative result is Enkrypt AI Safety Leaderboard (harmful_attack_non_success_rate, #1 of 260); its weakest is SpeciEval (land_animal_4ns, #100 of 102).
Compare this model
Only models sharing at least one published sub-eval are listed.
Official and reference links
- Artificial Analysis ↗muse-spark-1-1
- OpenRouter ↗meta/muse-spark-1.1
- Evaluation report and 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 | #30 / 311 | 0.3809 | ↓ lower | Source ↗official | |
| CAIS Risk Indexagent_red_teaming | #6 / 43 | 44.8 | ↓ lower | Source ↗official | |
| CAIS Risk Indexbioweapons_assistance | #4 / 48 | 22.3 | ↓ lower | Source ↗official | |
| CAIS Risk Indexhle_overconfidence | #1 / 49 | 25.3 | ↓ lower | Source ↗official | |
| CAIS Risk Indexmachiavelli | #23 / 45 | 88.2 | ↓ lower | Source ↗official | |
| CAIS Risk Indexmask | #1 / 51 | 3.8 | ↓ lower | Source ↗official | |
| CAIS Risk Indexpolitical_manipulation | #1 / 32 | 27.9 | ↓ lower | Source ↗official | |
| CAIS Risk Indextextquests_harm | #10 / 48 | 15.2 | ↓ lower | Source ↗official | |
| Enkrypt AI Safety Leaderboardbias_attack_non_success_rate | #20 / 260 | 49.87 | ↑ higher | Source ↗official | |
| Enkrypt AI Safety Leaderboardcbrn_attack_non_success_rate | #35 / 260 | 93.67 | ↑ higher | Source ↗official | |
| Enkrypt AI Safety Leaderboardharmful_attack_non_success_rate | #1 / 260 | 100 | ↑ higher | Source ↗official | |
| Enkrypt AI Safety Leaderboardtoxicity_attack_non_success_rate | #147 / 258 | 95.64 | ↑ higher | Source ↗official | |
| FORTRESSaverage_risk_score | #3 / 49 | 12.4 | ↓ lower | Source ↗official | |
| FORTRESSover_refusal_score | #33 / 46 | 6.92 | ↓ lower | Source ↗official | |
| MACHIAVELLIdeception_relative_random_pct | #23 / 50 | 88.2 | ↓ lower | Source ↗official | |
| SpeciEvalbelief_animal_sentience | #1 / 102 | 7 | ↑ higher | Source ↗official | |
| SpeciEvalland_animal_4ns | #100 / 102 | 5.28 | ↓ lower | Source ↗official | |
| SpeciEvalsea_animal_4ns | #53 / 102 | 4.78 | ↓ lower | Source ↗official | |
| SpeciEvalspeciesism | #57 / 102 | 2.1 | ↓ lower | Source ↗official |