Step 3.7 Flash pricing & benchmarks
Released May 28, 2026 · served by 3 providers · ranked #54 by intelligence in our index
What Step 3.7 Flash is
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...
- Model ID:
stepfun/step-3.7-flash - Modality: text+image+video->text
- Tool calling: supported · Structured output: supported
- Weights:
stepfun-ai/Step-3.7-Flashon Hugging Face
Providers and prices for Step 3.7 Flash
The same model costs different amounts depending on who serves it. Prices are per 1M tokens, cheapest first. Uptime and throughput are OpenRouter's rolling measurements, not vendor claims.
| Provider | Input | Output | Context | Quant | Uptime 24h | Throughput |
|---|---|---|---|---|---|---|
| StepFuncheapest | $0.200 | $1.15 | 256K | fp8 | 99.3% | — |
| DeepInfra | $0.200 | $1.15 | 262K | — | 99.8% | — |
| Novita | $0.200 | $1.15 | 262K | fp8 | 97.4% | — |
Step 3.7 Flash benchmark results
Design Arena head-to-head results, as reported through the OpenRouter model API.
| Category | Arena | Rank | Elo | Win rate |
|---|---|---|---|---|
| asciiart | models | #23 | 1193 | 46.7% |
| dataviz | models | #46 | 1203 | 45.9% |
| gamedev | models | #46 | 1204 | 41.9% |
| codecategories | models | #48 | 1203 | 44.9% |
| uicomponent | models | #48 | 1202 | 43.7% |
| website | models | #49 | 1212 | 46.3% |
| svg | models | #50 | 1122 | 39.3% |
| 3d | models | #55 | 1178 | 42% |
Cheaper models in the same class
Models scoring within 4 points of Step 3.7 Flash on the Intelligence Index, but with a lower output price.
FAQ
How much does the Step 3.7 Flash API cost?
$0.200 per 1M input tokens and $1.15 per 1M output tokens. A typical workload of 1M input + 300K output tokens costs about $0.55.
Is Step 3.7 Flash free?
No. It is a paid model starting at $0.200 per 1M input tokens, though some providers offer trial credits.
Which provider is cheapest for Step 3.7 Flash?
StepFun at $0.200 input / $1.15 output per 1M tokens (fp8 quantization).
Can I self-host Step 3.7 Flash?
Yes — weights are published as stepfun-ai/Step-3.7-Flash on Hugging Face, so you can run it on your own hardware.