Model profile
Muse Spark 1.2
Metadeveloper
2026-08-05release date
#10 / 317overall rank
3eval lineages
1discovery sources
Evidence summary
Muse Spark 1.2 has an estimated overall rank of #10; its 90% source-sensitivity interval is #4–#59. Its behavior-only rank is #4; company governance moves the combined estimate to #10. Published evidence spans 3 evals and 4 of 7 behavior components. Its strongest relative result is SpeciEval (belief_animal_sentience, #1 of 113); its weakest is SM-Bench (adversarial, #51 of 81).
Compare this model
Only models sharing at least one published sub-eval are listed.
Official and reference links
- Artificial Analysis ↗muse-spark-1-2
- OpenRouter ↗meta/muse-spark-1.2
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 | Source |
|---|---|---|---|---|
| AA-Omnisciencehallucination_rate | #32 / 331 | ↓0.3329 | Source ↗official | |
| SM-Benchadversarial | #51 / 81 | ↑80 | Source ↗official | |
| SM-Benchambiguous_interpretation | #3 / 81 | ↑93.75 | Source ↗official | |
| SM-Benchanti_hallucination | #10 / 81 | ↑98.95 | Source ↗official | |
| SM-Bencheq_boundaries | #31 / 81 | ↑67.42 | Source ↗official | |
| SM-Benchoverfit | #30 / 81 | ↑80.33 | Source ↗official | |
| SpeciEvalbelief_animal_sentience | #1 / 113 | ↑7 | Source ↗official | |
| SpeciEvalland_animal_4ns | #61 / 113 | ↓4.58 | Source ↗official | |
| SpeciEvalsea_animal_4ns | #31 / 113 | ↓4.58 | Source ↗official | |
| SpeciEvalspeciesism | #61 / 113 | ↓2.08 | Source ↗official |