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  • Released
  • Closed weights
Intelligence Index

Reasoning setting

43.7#14 of 83measured models
Measured · Artificial Analysis v4.3.2
Context window
1M tok

Performance profile

CodingRank #11 of 94
58.9%
SciCode
Cost efficiencyRank #41 of 67
42.6pts / $
Intelligence ÷ eval cost

Capabilities

Context window

Modalities

Measured setting

Reasoning trade-offs

Source (opens in a new tab)
Intelligence Index v4.3.2
Step 5 Preview
Cost per task (USD)
Step 5 PreviewReasoning
Intelligence Index
43.7
Cost / task
$1.03
Evaluation time
9.9m

Pricing & access

No API offering listed in our tracked sources.

Benchmarks

Full leaderboardSource (opens in a new tab)

Humanity’s Last Exam

Frontier reasoning

Step 5 Preview · Reasoning#14 of 126

  1. 1Claude Opus 5.5Max61.4%
  2. 2Claude Fable 5.1Max59.1%
  3. 3Gemini 4 ArgonHigh57.1%
  4. 11Gemini 3.8 FlashHigh47.8%
  5. 12Gemini 3.1 Pro PreviewReasoning47.0%
  6. 13Kimi-K3Max46.9%
  7. 14Step 5 PreviewReasoning46.5%
  8. 15Claude Haiku 5.5Max44.4%
  9. 16Muse Spark OpenExtra high43.9%
  10. 17JT-4.1 Flash 236B A21BReasoning43.6%

Peers use their best measured result on this benchmark.

Alternatives

Each model at its highest-scoring measured setting · Intelligence Index v4.3.2 and its evaluation cost per task.