Step 5 PreviewOpen weights
StepFun · released 2026-09-16
The official API price of Step 5 Preview is $1.04613 per 1M input tokens and $2.98895 per 1M output tokens (as of 2026-11-12). Context window: 1M tokens, up to 65.5K output tokens per request. 21 providers sell it. The lowest is CommandCode: $1 input, $2.7 output.
Price by providerUSD per 1M tokens
| Provider | Input | Output | Cached | Notes | |
|---|---|---|---|---|---|
| StepFun (China)Officialstep-5-preview | $1.04613 | $2.98895 | $0.10461 | Official | Official docs |
 CommandCodeLoweststepfun/ | $1 | $2.7 | $0.05 | Lowest | Official docs |
EEden AIdeepinfra/ | $1 | $2.7 | $0.1 | Official docs | |
EEden AItencent/ | $1 | $2.7 | $0.05 | Official docs | |
 EmpirioLabs AIstep-5-preview | $1 | $2.7 | $0.1 | Official docs | |
KKilo Gatewaystepfun/ | $1 | $2.7 | $0.1 | Official docs | |
 DevPass (LLM Gateway)step-5-preview | $1 | $2.7 | $0.1 | Official docs | |
LLLM Gatewaytencent/ | $1 | $2.7 | $0.1 | Official docs | |
NNanoGPTstepfun/ | $1 | $2.7 | $0.05 | Official docs | |
 Novita AIstepfun/ | $1 | $2.7 | $0.1 | Official docs | |
OOpenCode Gostep-5-preview | $1 | $2.7 | $0.1 | Official docs | |
 OpenRouterstepfun/ | $1 | $2.7 | $0.1 | Official docs |
11 more listings
| Provider | Input | Output | Cached | Notes | |
|---|---|---|---|---|---|
RRequestystep-5-preview | $1 | $2.7 | $0.05 | Official docs | |
SStepFun (Global)step-5-preview | $1 | $2.7 | $0.1 | Official docs | |
 Vercel AI Gatewaystepfun/ | $1 | $2.7 | $0.1 | Official docs | |
 AI/ML APIstepfun/ | $1.058 | $2.8566 | $0.0529 | Official docs | |
 AIHubMixstep-5-preview | $1.08 | $3.0888 | $0.054 | Official docs | |
 Deep InfraDeprecatedstepfun-ai/ | $1 | $2.7 | $0.1 | Deprecated | Official docs |
 Nvidiastepfun-ai/ | $0 | $0 | — | Official docs | |
 OpenCodeDeprecatedstep-5-preview-free | $0 | $0 | $0 | Deprecated | Official docs |
OOpenCode GoDeprecatedstep-5-preview-free | $0 | $0 | $0 | Deprecated | Official docs |
SStepFun Step Plan (Global)step-5-preview | — | — | — | Official docs | |
SStepFun Step Plan (China)step-5-preview | — | — | — | 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
StepFun's next-generation flagship base model for coding and professional knowledge work, with native text, image, and video input and a 1M-token context window
Description from models.dev.
Specs
- Type
- Text
- Context
- 1M
- Max output
- 65.5K
- Input
- Text, Image, Video
- Output
- Text
- Reasoning
- Yes
- Tool calling
- Yes
- Structured output
- Yes
- Knowledge cutoff
- —
- Open weights
- Yes
- Released
- 2026-09-16
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.