BenchLeader

Step 2

Step 2 is a StepFun proprietary model, released 1 Jan 2025. It is not yet ranked: 4 independent results so far, and the index needs at least five across two categories. Last measured 22 Oct 2026.

Blended price
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Output speed
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First answer
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Context
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Full answer
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Cost per run
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Released
1 Jan 2025
How it scores by categoryDashed line = average model (50). One step of 15 = one standard deviation.
  1. Reasoning48
  2. Coding49
  3. Maths48
  4. Human preference49

Versions

StepFun has shipped 2 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.

ModelReleasedIndexRank
Step 2this page1 Jan 2025––
Step 3–51.5#344

Benchmark results

See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.

Reasoning

Benchmarknot statedSourceTrend
Arena Hard Prompts1338#224Arena (LMArena)

Coding

Benchmarknot statedSourceTrend
Arena Coding1370#221Arena (LMArena)

Maths

Benchmarknot statedSourceTrend
Arena Maths1312#218Arena (LMArena)

Instruction following

Benchmarknot statedSourceTrend
Arena Instruction Followingnot in index1316#221Arena (LMArena)

Human preference

Benchmarknot statedSourceTrend
Arena Text1334#222Arena (LMArena)
Arena Creative Writingnot in index1335#184Arena (LMArena)
Arena Multi-turnnot in index1307#237Arena (LMArena)
Arena Longer Queriesnot in index1342#213Arena (LMArena)

More from StepFun

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See also

Questions people ask

Why does Step 2 have no BenchLeader Index score?
The index needs at least five independent results across at least two categories; as of 25 Oct 2026 Step 2 has 4 that count. Launch-post scores are never used, so it is ranked once independent publishers have measured it.
When was Step 2 released?
StepFun released Step 2 on 1 Jan 2025.

Data as of 25 Oct 2026. Compare with another model.

Cite as: BenchLeader, “Step 2: benchmarks, pricing, speed and rank”, data as of 25 Oct 2026, https://www.benchleader.com/models/step-2.