Step 3.7 FlashOpen weights
StepFun · released 2026-05-29
The official API price of Step 3.7 Flash is $0.20175 per 1M input tokens and $1.21052 per 1M output tokens (as of 2026-11-12). Context window: 256K tokens, up to 256K output tokens per request. 21 providers sell it. The lowest is CommandCode: $0.2 input, $1.15 output.
Price by providerUSD per 1M tokens
| Provider | Input | Output | Cached | Notes | |
|---|---|---|---|---|---|
| StepFun (China)Officialstep-3.7-flash | $0.20175 | $1.21052 | $0.04035 | Official | Official docs |
 CommandCodeLoweststepfun/ | $0.2 | $1.15 | $0.04 | Lowest | Official docs |
EEden AIdeepinfra/ | $0.2 | $1.15 | $0.04 | Official docs | |
 EmpirioLabs AIstep-3-7-flash | $0.2 | $1.15 | $0.04 | Official docs | |
 Hugging Facestepfun-ai/ | $0.2 | $1.15 | — | Official docs | |
KKilo Gatewaystepfun/ | $0.2 | $1.15 | $0.04 | Official docs | |
 DevPass (LLM Gateway)step-3.7-flash | $0.2 | $1.15 | $0.04 | Official docs | |
LLLM Gatewaynovita/ | $0.2 | $1.15 | $0.04 | Official docs | |
NNanoGPTstepfun/ | $0.2 | $1.15 | $0.04 | Official docs | |
 Novita AIstepfun/ | $0.2 | $1.15 | $0.04 | Official docs | |
 OpenRouterstepfun/ | $0.2 | $1.15 | $0.04 | Official docs | |
RRequestystep-3.7-flash | $0.2 | $1.15 | $0.04 | Official docs |
10 more listings
| Provider | Input | Output | Cached | Notes | |
|---|---|---|---|---|---|
SStepFun (Global)step-3.7-flash | $0.2 | $1.15 | $0.04 | Official docs | |
 Vercel AI Gatewaystepfun/ | $0.2 | $1.15 | $0.04 | Official docs | |
 ZenMuxstepfun/ | $0.2 | $1.15 | $0.04 | Official docs | |
 AIHubMixstep-3.7-flash | $0.22 | $1.32 | $0.044 | Official docs | |
KKenaristep-3-7-flash | $0.24 | $1.371429 | $0.048 | Official docs | |
 Deep InfraDeprecatedstepfun-ai/ | $0.2 | $1.15 | $0.04 | Deprecated | Official docs |
KKenariDeprecatedstep-3-7-flash: | $0 | $0 | — | Deprecated | Official docs |
UUnoRouterDeprecatedstep-3.7-flash: | $0 | $0 | — | Deprecated | Official docs |
SStepFun Step Plan (Global)step-3.7-flash | — | — | — | Official docs | |
SStepFun Step Plan (China)step-3.7-flash | — | — | — | Official docs |
Providers are those listed by models.dev. This site has not vetted them one by one; each provider's own page has the binding price.
About
Newer StepFun flash model for faster agents, coding, and multimodal prompts
Description from models.dev.
Specs
- Type
- Text
- Context
- 256K
- Max output
- 256K
- Input
- Text, Image, Video
- Output
- Text
- Reasoning
- Yes
- Tool calling
- Yes
- Structured output
- Yes
- Knowledge cutoff
- 2026-03-01
- Open weights
- Yes
- Released
- 2026-05-29
Source
Prices and specs come from models.dev (MIT licence), updated 2026-11-12. Each provider's name links to its official docs. A provider priced at 0 usually includes the model in a subscription; it is not necessarily a free API.