Muse Spark 1.1

Composite indexes

• Artificial Analysis Intelligence Index#43 of 151
  34independentAA Intelligence Index v4.3.2, xhighArtificial Analysis: Muse Spark 1.1 (xhigh) ↗

  Leader: Claude Opus 5.5 at 58

Coding

• Terminal-Bench 4.0#43 of 96
  6.1%independentTerminal-Bench 4.0 (AA harness), xhighArtificial Analysis: Muse Spark 1.1 (xhigh) ↗

  Leader: Claude Sonnet 5.5 at 70.6%

• SciCode#12 of 100
  58.8%independentxhighArtificial Analysis: Muse Spark 1.1 (xhigh) ↗

  Leader: Claude Opus 5.5 at 66.9%

Agents and tool use

• GDPval-AA#43 of 109
  1208independentGDPval-AA, xhighArtificial Analysis: Muse Spark 1.1 (xhigh) ↗

  Leader: Muse Wonder Full at 1857

Reasoning and knowledge

• Humanity’s Last Exam#20 of 153
  46.2%independentno tools (AA), xhighArtificial Analysis: Muse Spark 1.1 (xhigh) ↗

  Leader: Claude Sonnet 5.5 at 64.5%

• GPQA Diamond#41 of 144
  89.8%independentAA, xhighArtificial Analysis: Muse Spark 1.1 (xhigh) ↗

  Leader: GPT-6 Astra at 96.1%

• CritPt#35 of 144
  15.1%independentxhighArtificial Analysis: Muse Spark 1.1 (xhigh) ↗

  Leader: Muse Wonder Full at 33%

Vision and long context

• AA Long Context Reasoning#53 of 144
  77.7%independentxhighArtificial Analysis: Muse Spark 1.1 (xhigh) ↗

  Leader: Kimi K3 at 88.7%

Human preference

• LMArena Text#6 of 57
  1493independentmuse-spark-1.1, style control default, vote cutoff 2026-09-13LMArena Text leaderboard ↗

  Leader: Gemini 4 Argon at 1525

• LMArena WebDev#31 of 58
  1542independentmuse-spark-1.1, LMArena Code arena (formerly WebDev), vote cutoff 2026-09-23LMArena Code (WebDev) leaderboard ↗

  Leader: Claude Opus 5.5 at 1818

Other published results