StepFun · model
Step 3.5 Flash benchmark scores
As of 2026-10-10, Step 3.5 Flash (StepFun) has measured scores on 3 benchmarks and estimated scores on 16 more.
| Benchmark | Score | Source |
|---|---|---|
| AA-SciCode | 45.4% | estimated ± 3.9 pp, high confidence |
| AIME26 | 96.5% | estimated ± 4.6 pp, low confidence |
| LiveCodeBench v6 | 86.4% | measured |
| SciCode | 45.9% | estimated ± 3.8 pp, high confidence |
| AA Coding Index | 49.1% | estimated ± 5.5 pp, medium confidence |
| SWE-bench Verified | 74.4% | measured |
| SWE-bench Pro | 50.1% | estimated ± 3.4 pp, high confidence |
| FrontierMath v2 (Tier 4) | 4.9% | estimated ± 6.6 pp, low confidence |
| AIME 2025 | 97.3% | measured |
| FrontierCode 1.1 Main | 9.5% | estimated ± 2.7 pp, low confidence |
| Vals LiveCodeBench | 84.1% | estimated ± 2.0 pp, low confidence |
| Vals SWE-bench | 68.7% | estimated ± 6.8 pp, medium confidence |
| Vibe Code Bench | 2.4% | estimated ± 8.1 pp, medium confidence |
| HMMT Feb 2025 | 98.1% | estimated ± 3.1 pp, medium confidence |
| NL2Repo | 38.4% | estimated ± 3.4 pp, high confidence |
| React Native Evals | 73.2% | estimated ± 2.3 pp, medium confidence |
| SWE-Rebench | 57.1% | estimated ± 3.6 pp, medium confidence |
| AIME 2024 | 96.3% | estimated ± 2.2 pp, low confidence |
| MATH-500 | 98.2% | estimated ± 2.9 pp, medium confidence |