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Step 3.7 Flash

open weightsdeprecated by benchmark source
StepFun · released 2026-05-29 · 2 offers

Context 262K tokens

Top 1 cheapest providers (Adjusted $/task)

Within the active global provider, residency and confidentiality filters.

#ProviderAdjusted $/task
1Novitavia OpenRouter — Price via OpenRouter: OpenRouter's price for Novita's endpoint (https://openrouter.ai/stepfun/step-3.7-flash/providers), collected 2026-11-03.

Composite

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

8.2

 Thin data · 2/7Based on only 2 of 7 Composite inputs — treat this rank as uncertain

includes −13.9 for its Benchmaxxing signal (from 22.1; why, switch off in Options)

Benchmaxxing signal +13.9, 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 Coding v4.xCoding Agent v1.4AA Intelligence (est.)AA AgenticEpoch ECISoftware ECIDesignArenaAA Coding v4.x: percentile 46AA Intelligence (est.): percentile 63

AA Coding v4.x 39.6Coding Agent v1.4 —AA Intelligence (est.) 9.6AA Agentic —Epoch ECI —Software ECI —DesignArena —/—

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

Benchmark sheet

28 of 319 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-AA2172.7%

    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) v1.0.13643.9%

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

  • AA Coding Index v4.x · frozen 2026-10-274639.6

    AA Coding Index v4.x · frozen 2026-10-27 → · Published board — Artificial Analysis withdrew the Coding Index with Intelligence Index v5.0 (2026-10-28). These are the last v4.x values, frozen with their own date (2026-10-27).

Efficiency

Instruction-following

Knowledge

Long-context

  • AA-LCR v1.17373.7%

    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)030.6%

    ArXivMath 06/2026 (MathArena) 2026-06 → · Published board — Research-level math problems with a checkable final answer, drawn from arXiv papers submitted in June 2026; each edition is restricted to papers published within the last month to reduce training-data contamination.

  • BrokenArXiv 06/2026 (MathArena)015.7%

    BrokenArXiv 06/2026 (MathArena) 2026-06 → · 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.

  • HMMT February 2026 (MathArena) 2026-02087.9%

    HMMT February 2026 (MathArena) 2026-02 → · Published board — The 33 final-answer problems of the February 2026 Harvard-MIT Mathematics Tournament, one of the largest high-school math competitions in the United States, run by MathArena on the contest problems.

  • Apex 2025 (MathArena)5314.6%

    Apex 2025 (MathArena) v2025 → · Published board — Twelve final-answer problems from 2025 competitions that MathArena selected because strong models of the time failed them; the selection is biased against the four models used to choose it (Grok 4, GPT-5, Gemini 2.5 Pro, GLM 4.5).

  • Apex Shortlist 2025 (MathArena)5076.6%

    Apex Shortlist 2025 (MathArena) v2025 → · Published board — 47 final-answer problems from 2025 competitions on which at least one of two reference models (Grok 4 Fast, GPT-5 mini) got at least one of four attempts wrong, run by MathArena.

  • AIME 2026 (MathArena)095.0%

    AIME 2026 (MathArena) v2026 → · Published board — The 30 integer-answer problems of the 2026 American Invitational Mathematics Examination (AIME I and II), the qualifying exam for the USA Mathematical Olympiad, run by MathArena on the contest problems.

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 · 291 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 · 1 offer (Adjusted $/task)

Click any underlined price to see how it is estimated and where each input comes from. How we calculate adjusted cost.

1 offer within the active global filters, 1 more outside them; “price n/a” means the provider serves the model but publishes no direct token price we could collect — no other channel's price is shown in its place.

OpenRouter (1)

Prices via OpenRouter — what OpenRouter charges for each provider's endpoint, not the provider's own direct price. Source: openrouter.ai/stepfun/step-3.7-flash/providers, collected 2026-11-03.

Novita
Step 3.7 Flash — benchmarks & cost | Benchmark Heaven