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Step 3.7 Flash

open weights
StepFun · released 2026-05-29 · 3 offers

Output 151 tokens/sFirst token 1.4 sContext 262K tokens

Top 2 cheapest providers (Adjusted $/task)

The same list price can give a different adjusted $/task (caching, token efficiency) — click a price for its inputs.

Within the active global provider, residency and confidentiality filters.

#ProviderAdjusted $/task
1DeepInfra
2Novita

Composite

2 of 7 inputs6 radar axes: DesignArena's two boards share one

30.0

includes −15.0 for its Benchmaxxing signal (from 45.0; why, switch off in Options)

Benchmaxxing signal +15.0, very strong Benchmaxxing tag, uncertain: The 80 % interval reaches below zero — treat this tag as uncertain · very strong report →The 80 % interval reaches below zero — treat this tag as uncertain.

AA CodingCoding Agent v1.4AA IntelligenceAA AgenticEpoch ECISoftware ECIDesignArenaAA Coding: percentile 46AA Intelligence: percentile 69

AA Coding 39.6Coding Agent v1.4 AA Intelligence 19.5AA Agentic Epoch ECI Software ECI DesignArena —/—

Radar: percentile among all models measured on each input; a gap means not measured.

Benchmark sheet

24 of 140 registered benchmark versions · bars show the percentile among all models measured on each benchmark.

Compare this model →

Agentic

  • APEX-Agents-AA3414.8%

    APEX-Agents-AA published 2026-09-10 · Published board — Tests professional-service tasks that require agents to produce locally graded deliverables.

  • GDPval-AA v246954 Elo

    GDPval-AA v2 v2 · Published board — Tests professional knowledge-work deliverables across occupations using AA's Stirrup harness.

  • Harvey LAB-AA2472.7%

    Harvey LAB-AA published 2026-09-10 · Published board — Tests legal-work deliverables across practice areas on Harvey's private task set. Artificial Analysis' run, graded by one LLM judge against task rubrics — not the same run or scale as Vals AI's HLAB row.

  • ITBench-AA3430.3%

    ITBench-AA published 2026-09-10 · Published board — Tests root-cause diagnosis from offline Kubernetes incident snapshots.

  • Terminal-Bench Hard (AA)8235.6%

    Terminal-Bench Hard (AA) pinned revision 74221fb · Published board — Tests a pinned 44-task hard subset of terminal-based work using Terminus 2.

  • Terminal-Bench v2.1 (AA)4139.3%

    Terminal-Bench v2.1 (AA) v2.1 · Published board — Tests terminal-based work on the 89-task verified refresh using Terminus 2.

  • τ²-Bench Airline (OpenRouter run)9477.3%

    τ²-Bench Airline (OpenRouter run) published 2026-09-15 · Published board — Multi-turn service agents making tool calls under strict policy constraints. (OpenRouter's own reproducible run, as published on openrouter.ai/benchmarks.)

Coding

  • SciCode (AA subproblems) v1.0.13943.9%

    SciCode (AA subproblems) v1.0.1 · Published board — Tests scientific Python programming with scientist-annotated background information.

  • AA Coding Index4639.6

    AA Coding Index published 2026-09-19 · Published board — Artificial Analysis publishes this board without a version number; we keep the date each result was retained.

Efficiency

Instruction-following

Knowledge

Long-context

  • AA-LCR v1.17473.7%

    AA-LCR v1.1 v1.1 · Published board — Tests reasoning across multiple long documents with corrected answer keys and grading.

Math

  • ArXivMath 06/2026 (MathArena) v2026-06030.6%

    ArXivMath 06/2026 (MathArena) v2026-06 · Published board — Research-level math problems with a checkable final answer, drawn from arXiv papers submitted in June 2026, so they postdate most training data.

  • BrokenArXiv 06/2026 (MathArena) v2026-06015.7%

    BrokenArXiv 06/2026 (MathArena) v2026-06 · Published board — Plausible but false proof statements taken from June 2026 arXiv papers; a model scores by refusing to prove them and saying the statement is false as written.

Reasoning

Science

Tool-use

Vision

Writing

  • Judgemark v4028.0

    Judgemark v4 v4 · Published board — Meta-evaluation that rates LLM judges on how discriminatively they score fixed creative-writing samples.

Missing coverage · 119 benchmark versions

No result does not mean a zero, or that the model was never tested. Collection failures and disputed versions retain their distinct status.

Token offers by platform · 2 offers (Adjusted $/task)

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2 offers within the active global filters; “—” means the catalog is active but no public token price is available.

OpenRouter (2)

DeepInfra
Novita
Step 3.7 Flash — benchmarks & cost | Benchmark Heaven