Meta / MODEL EVIDENCE

Muse Spark 1.2

44 benchmarks · 47 observations · 45 sources · released 2026-08-05

Scores at a glance

44 benchmarks · large dot: Muse Spark 1.2; small dots: closest models where reported

2.113.25

Muse Spark 1.2 · ErdősBench · mean progress / 4 · API ↗

076

Muse Spark 1.2 (xhigh) · Chess Puzzles · Best score (across scorers) · % ↗

032.29

Muse Spark 1.2 (xhigh) · CritPt · Accuracy · % ↗

LMCA ↗48.35%
2.7868.26

Muse Spark 1.2 (xhigh) · LMCA · Score · % ↗

41.6598.93

Muse Spark 1.2 (xhigh) · DTBench · Accuracy · % ↗

1.2766.9

Muse Spark 1.2 (xhigh) · SciCode · Score · % ↗

Closest models by score

Similar positions on shared benchmark leaderboards. Smaller gaps are closer.

16.7 percentile-point gap

24 of 31 shared benchmark comparisons

17.2 percentile-point gap

22 of 31 shared benchmark comparisons

How similarity is measured

Mean absolute gap in percentile positions on shared benchmark settings; lower is closer. At least 60% overlap is required, with a minimum of three when available. Independent evaluations are used when there are at least three; otherwise published report comparisons are used. Repeated model observations within one setting are averaged before ranking. Writing-style traits and composite indices are excluded. This describes similarity, not an overall quality ranking.

Sources

Every plotted observation links to its evaluation. Reported configurations, benchmark versions and task subsets can differ; similarity describes shared scores, not training lift.

  1. Arena leaderboard — WebDev evaluation ↗

    Arena

  2. EnterpriseOps-Gym-AA Benchmark | Artificial Analysis ↗

    Artificial Analysis

  3. SciCode Benchmark | Artificial Analysis ↗

    Artificial Analysis

  4. DTBench — Conceptual Reasoning Index ↗

    Conceptual Reasoning Index

  5. LMCA — Conceptual Reasoning Index ↗

    Conceptual Reasoning Index

  6. DeepSWE ↗

    Datacurve

  7. APEX-Agents ↗

    Epoch AI

  8. Chess Puzzles ↗

    Epoch AI

  9. CritPt v1 ↗

    Epoch AI

  10. SimpleQA Verified ↗

    Epoch AI

  11. AI benchmarks & capabilities ↗

    Epoch AI

  12. WeirdML ↗

    Håvard Tveit Ihle

  13. DistressBench — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  14. Humanity's Sixth Sense — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  15. AI Model Benchmarks — LM Council ↗

    LM Council

  16. GDP.pdf Benchmark | Surge AI ↗

    Surge AI

  17. FrontierSWE — software engineering benchmark ↗

    FrontierSWE

  18. ErdősBench: research mathematics, scoped progress and proof audits ↗

    Ulam AI · 2026

  19. BioMysteryBench — evaluation methodology and results ↗

    Vals AI · 2026

  20. Code Migration v1 — evaluation methodology and results ↗

    Vals AI · 2026

  21. CorpFin — evaluation methodology and results ↗

    Vals AI · 2026

  22. CyberBench — evaluation methodology and results ↗

    Vals AI · 2026

  23. Excel Modeling Benchmark v1 — evaluation methodology and results ↗

    Vals AI · 2026

  24. Finance Agent v2 — evaluation methodology and results ↗

    Vals AI · 2026

  25. Harvey's Legal Agent Benchmark v1 — evaluation methodology and results ↗

    Vals AI · 2026

  26. IOI — evaluation methodology and results ↗

    Vals AI · 2026

  27. LegalBench — evaluation methodology and results ↗

    Vals AI · 2026

  28. Legal Research Bench — evaluation methodology and results ↗

    Vals AI · 2026

  29. MedCode — evaluation methodology and results ↗

    Vals AI · 2026

  30. MedScribe — evaluation methodology and results ↗

    Vals AI · 2026

  31. MMLU Pro — evaluation methodology and results ↗

    Vals AI · 2026

  32. MMMU Pro — evaluation methodology and results ↗

    Vals AI · 2026

  33. MortgageTax — evaluation methodology and results ↗

    Vals AI · 2026

  34. ProgramBench — evaluation methodology and results ↗

    Vals AI · 2026

  35. ProofBench — evaluation methodology and results ↗

    Vals AI · 2026

  36. Public Benefits Bench — evaluation methodology and results ↗

    Vals AI · 2026

  37. SAGE — evaluation methodology and results ↗

    Vals AI · 2026

  38. SkillsBench — evaluation methodology and results ↗

    Vals AI · 2026

  39. SRE Bench — evaluation methodology and results ↗

    Vals AI · 2026

  40. SWE-bench Verified — evaluation methodology and results ↗

    Vals AI · 2026

  41. Tax Agent Bench — evaluation methodology and results ↗

    Vals AI · 2026

  42. TaxEval — evaluation methodology and results ↗

    Vals AI · 2026

  43. Terminal-Bench 4.0 — evaluation methodology and results ↗

    Vals AI · 2026

  44. Vals Multimodal Index — evaluation methodology and results ↗

    Vals AI · 2026

  45. Vibe Code Bench — evaluation methodology and results ↗

    Vals AI · 2026

Names used in source tables

Muse Spark 1.2 · Muse Spark 1.2 (Mini-SWE-agent) · Muse Spark 1.2 (OpenHands) · Muse Spark 1.2 (Xhigh) · Muse Spark 1.2 (xhigh) · muse-spark-1.2