StepFun
Step 3.7 Flash
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters...
StepFun researchModel Snapshot
ReleaseMay 29, 2026
Context256,000
Overall
Rank #134 across 566
30.3
Coding
Rank #113 across 222
39.6
Blended Price
Rank #104 across 371
$0.438/M
Strength Profile
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Benchmark Percentiles
Higher bars mean stronger relative placement.
Model Details
Runtime
Output Speed385.2 tok/s
First Token0.67s
Max Output256,000
Pricing
Blended$0.438/M
Input$0.200/M
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 30.3 | #134 |
| Artificial Analysis Coding Index | coding | 39.6 | #113 |
| GPQA | reasoning | 80.9% | #136 |
| Humanity's Last Exam | reasoning | 19.9% | #105 |
| SciCode |