StepFun: Step 3.7 Flash
StepFunOpen weights
StepFun: Step 3.7 Flash by StepFun costs $0.19 per 1M input tokens and $1.13 per 1M output tokens, with a 262K-token context window.
Pricing
Input (per 1M tokens)
$0.19
Output (per 1M tokens)
$1.13
Cached input (per 1M)
$0.04
| Provider | Input / 1M | Output / 1M |
|---|---|---|
| StepFun | $0.19 | $1.13 |
| openrouter | $0.20 | $1.15 |
| StepFun (China) | $0.19 | $1.11 |
Specifications
- Provider
- StepFun
- Context window
- 262K tokens
- Parameters
- —
- Released
- May 2026
- Open weights
- Yes
- Frontier model
- No
- Hugging Face
- stepfun-ai/Step-3.7-Flash
Speed & latency
Time to first token
1.78s
Output speed
196 tok/s
Fastest host: stepfun (via vercel-ai-gateway).
Compare StepFun: Step 3.7 Flash with…
FAQ
How much does StepFun: Step 3.7 Flash cost?
StepFun: Step 3.7 Flash is priced at $0.19 per 1M input tokens and $1.13 per 1M output tokens. Output tokens cost more than input.
What is StepFun: Step 3.7 Flash's context window?
StepFun: Step 3.7 Flash supports a context window of 262K tokens — the maximum prompt plus response length it can handle in a single request.
Is StepFun: Step 3.7 Flash open weight?
Yes — StepFun: Step 3.7 Flash has openly available weights.
Data as of 2026-10-14. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.