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Step 3.5 Flash 2603
StepFun · Released 2026-04-02 · Independent benchmark scores from Artificial Analysis
Intelligence Index
26.0
Output speed
292.6
tokens/sec
Blended price
$0.15
per 1M tokens
Time to first token
0.81s
Model metadata
| Model ID | 1aa3694e-b656-4dbe-8f84-0c65d8897abb |
|---|---|
| Slug | step-3-5-flash |
| Release date | 2026-04-02 |
| Provider | StepFun |
| Provider slug | stepfun |
| Output speed | 292.6 tok/s |
| Time to first token | 0.81s |
| Time to first answer | 7.64s |
| Blended price ($/1M) | $0.15 |
| Input price ($/1M) | $0.10 |
| Output price ($/1M) | $0.30 |
All evaluation scores (17)
| aime | — |
|---|---|
| aime 25 | — |
| artificial analysis coding index | — |
| artificial analysis intelligence index | 26.00 |
| artificial analysis math index | — |
| gpqa | 82.6% |
| hle | 22.6% |
| ifbench | 66.5% |
| lcr | 54.3% |
| livecodebench | — |
| math 500 | — |
| mmlu pro | — |
| scicode | 38.5% |
| tau banking | — |
| tau2 | 87.4% |
| terminalbench hard | 32.6% |
| terminalbench v2 1 | — |
Source: artificialanalysis.ai/models/step-3-5-flash
Benchmark data from Artificial Analysis.