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Artificial Analysis Intelligence Index

A composite of ten independent evaluations run by Artificial Analysis: reasoning, knowledge, math, coding, agents.
Artificial Analysis
Claude Opus 5.5
#1 right now
57.6
Index
100
Models ranked
Sep 24, 2026
Board published

Ranking

Best variant per model, as published. Higher is better.

  1. 1
    Claude Opus 5.5
    as “Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback)
    57.6
  2. 2
    Claude Fable 5.1
    as “Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)
    53.4
  3. 3
    GPT-6 Astra
    as “GPT-6 Astra (max)
    52.7
  4. 4
    Muse Spark 1.3
    as “Muse Spark 1.3 (max)
    48.1
  5. 5
    GPT-6 Sol
    as “GPT-6 Sol (max)
    47.5
  6. 6
    Grok 4.7
    as “Grok 4.7 (xhigh)
    46.4
  7. 746.3
  8. 845.4
  9. 9
    GLM-5.3
    as “GLM-5.3 (max)
    44.8
  10. 10
    Grok 4.6
    as “Grok 4.6 (high)
    44.3
  11. 1143.7
  12. 12
    Kimi K3
    as “Kimi K3 (max)
    43.6
  13. 13
    GPT-5.6 Terra
    as “GPT-5.6 Terra (max)
    42.1
  14. 1441.8
  15. 15
    Gemini 3.8 Flash
    as “Gemini 3.8 Flash (high)
    40.9
  16. 1639.9
  17. 1739.8
  18. 18
    DeepSeek V4.1 Flash
    as “DeepSeek V4.1 Flash (Reasoning, Max Effort)
    39.5
  19. 19
    Claude Sonnet 5
    as “Claude Sonnet 5 (Adaptive Reasoning, Max Effort)
    38.2
  20. 20
    GPT-6 Luna
    as “GPT-6 Luna (max)
    37.3
  21. 21
    DeepSeek V4 Pro 0813
    as “DeepSeek V4 Pro 0813 (Reasoning, Max Effort)
    36.0
  22. 2235.5
  23. 2335.2
  24. 24
    DeepSeek V4 Flash Vision
    as “DeepSeek V4 Flash Vision (Reasoning, Max Effort)
    34.8
  25. 25
    Qwen3.8 27B
    as “Qwen3.8 27B (xhigh)
    33.7

Rank over time

History builds with every daily capture. One capture so far.

Other reasoning boards

Scores as published by Artificial Analysis on the capture date (2026-09-24). Source: artificialanalysis.ai models page data.

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