Meta / MODEL EVIDENCE

Muse Spark 1.3

47 benchmarks · 78 observations · 48 sources · released 2026-09-02

Scores at a glance

47 benchmarks · large dot: Muse Spark 1.3; small dots: closest models where reported

AA-3D ↗1033.46 Elo
572.551198.83

Muse Spark 1.3 (Max) · AA-3D · Elo ↗

87.1796.06

Muse Spark 1.3 (Xhigh) · GPQA Diamond · AA implementation ↗

73.4787.69

Muse Spark 1.3 (Xhigh) · MMMU-Pro · AA implementation ↗

2.113.25

Muse Spark 1.3 · ErdősBench · mean progress / 4 · API ↗

2626

Muse Spark 1.3 (xhigh) · CritPt · Accuracy · % ↗

1 more reported result

24.86% · Muse Spark 1.3 (max) · CritPt · Accuracy · % · Epoch AI · CritPt ↗

235

Muse Spark 1.3 (xhigh) · GDP.pdf · GDP.pdf score · % ↗

4.3854.05

Muse Spark 1.3 (xhigh) · WeirdML v3 · Max performance · % ↗

Vals RSI Index ↗0.23 reference score
00.46

Muse Spark 1.3 Max (max) · Compression · reference-anchored score ↗

3 more reported results

0.41 reference score · Muse Spark 1.3 Max (max) · LM training · reference-anchored score · Vals RSI Index · LM training ↗

0.15 reference score · Muse Spark 1.3 Max (max) · Harness engineering · reference-anchored score · Vals RSI Index · Harness engineering ↗

0.00 reference score · Muse Spark 1.3 Max (max) · Post-training · reference-anchored score · Vals RSI Index · Post-training ↗

1556

Muse Spark 1.3 (Extra High) · Urgent safety · share of applicable ratings marked fail ↗

2 more reported results

14% · Muse Spark 1.3 (Extra High) · Health advice · share of applicable ratings marked fail · Vals AI · SAFE-Teen ↗

56% · Muse Spark 1.3 (Extra High) · Relationship boundaries · share of applicable ratings marked fail · Vals AI · SAFE-Teen ↗

BTF-3 ↗0.141 Brier scale
0.120.15

Muse Spark 1.3 (xhigh) · Pooled forecasting score ↗

Closest models by score

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

35.4 percentile-point gap

14 of 19 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. AA-3D: Interactive 3D Experience Benchmark | Artificial Analysis ↗

    Artificial Analysis

  3. GPQA Diamond Benchmark | Artificial Analysis ↗

    Artificial Analysis

  4. Harvey LAB-AA v1.1 Benchmark | Artificial Analysis ↗

    Artificial Analysis

  5. MMMU-Pro Benchmark | Artificial Analysis ↗

    Artificial Analysis

  6. SciCode Benchmark | Artificial Analysis ↗

    Artificial Analysis

  7. 𝜏³-Banking Benchmark | Artificial Analysis ↗

    Artificial Analysis

  8. Terminal-Bench 2.1 Benchmark | Artificial Analysis ↗

    Artificial Analysis

  9. Cursor · CursorBench ↗

    Cursor

  10. APEX-Agents ↗

    Epoch AI

  11. Chess Puzzles ↗

    Epoch AI

  12. CritPt v1 ↗

    Epoch AI

  13. FrontierMath Tier 4 (v2) ↗

    Epoch AI

  14. FrontierMath Tiers 1-3 (v2) ↗

    Epoch AI

  15. Mystery Game Puzzles ↗

    Epoch AI

  16. OTIS Mock AIME 2024-2025 ↗

    Epoch AI

  17. AI benchmarks & capabilities ↗

    Epoch AI

  18. FutureSearch Evals ↗

    FutureSearch

  19. WeirdML ↗

    Håvard Tveit Ihle

  20. DistressBench — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  21. DrugDiscoveryBench — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  22. Scale Labs — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

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

    Scale Labs / SEAL · 2026

  24. Scale Labs — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  25. Scale Labs — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  26. GDP.pdf Benchmark | Surge AI ↗

    Surge AI

  27. FrontierSWE — software engineering benchmark ↗

    FrontierSWE

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

    Ulam AI · 2026

  29. Code Migration v1 — evaluation methodology and results ↗

    Vals AI · 2026

  30. CUA-bench — evaluation methodology and results ↗

    Vals AI · 2026

  31. CyberBench — evaluation methodology and results ↗

    Vals AI · 2026

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

    Vals AI · 2026

  33. Finance Agent v2 — evaluation methodology and results ↗

    Vals AI · 2026

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

    Vals AI · 2026

  35. IOI — evaluation methodology and results ↗

    Vals AI · 2026

  36. Legal Research Bench — evaluation methodology and results ↗

    Vals AI · 2026

  37. SAFE-Teen: Teen Mental Health & Safety | Vals AI A conversation branches after the chatbot turns down a request — evaluation methodology and results ↗

    Vals AI · 2026

  38. MysteryMechanism — evaluation methodology and results ↗

    Vals AI · 2026

  39. ProgramBench — evaluation methodology and results ↗

    Vals AI · 2026

  40. ProofBench — evaluation methodology and results ↗

    Vals AI · 2026

  41. Vals RSI Index — evaluation methodology and results ↗

    Vals AI · 2026

  42. SRE Bench — evaluation methodology and results ↗

    Vals AI · 2026

  43. SWE-bench Multimodal — evaluation methodology and results ↗

    Vals AI · 2026

  44. Tax Agent Bench — evaluation methodology and results ↗

    Vals AI · 2026

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

    Vals AI · 2026

  46. Terminal-Bench-Science — evaluation methodology and results ↗

    Vals AI · 2026

  47. Vibe Code Bench 1-100 — evaluation methodology and results ↗

    Vals AI · 2026

  48. Vibe Code Bench — evaluation methodology and results ↗

    Vals AI · 2026

Names used in source tables

Muse Spark 1.3 · Muse Spark 1.3 (Extra High) · Muse Spark 1.3 (Max) · Muse Spark 1.3 (Mini-SWE-agent) · Muse Spark 1.3 (OpenHands) · Muse Spark 1.3 (Xhigh) · Muse Spark 1.3 (high) · Muse Spark 1.3 (low) · Muse Spark 1.3 (max) · Muse Spark 1.3 (medium) · Muse Spark 1.3 (xhigh) · Muse Spark 1.3 Max · Muse Spark 1.3 Max (Mini-SWE-agent) · Muse Spark 1.3 Max (OpenHands) · Muse Spark 1.3 Max (max) · Muse-Spark 1.3 (mini-SWE-agent) high · muse-spark-1.3