Step 3.7 Flash
StepFun's multimodal reasoning model with a 256K-token context for text, image, and video inputs.
Design Arena
Design Arena ranks models on real-world front-end and design tasks — websites, UI components, data viz, SVG and more — through head-to-head human votes, scored as an ELO rating.| Category | ELO | Win rate | Rank |
|---|---|---|---|
| Asciiart | 1217 | 50.4% | #16 |
| Website | 1212 | 46.2% | #48 |
| UI component | 1206 | 43.6% | #49 |
| Code | 1204 | 44.8% | #51 |
| Game dev | 1200 | 41.2% | #48 |
Pricing
per 1M tokensInput$0.2 /1M
Output$1.15 /1M
Cache read$0.04 /1M
Model Description
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...
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