Step 5 Preview
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
- Organization
- StepFun (China)
- Family
- —
- Providers
- 9
- Context
- 1,000,000
- Output limit
- 1,000,000
- Knowledge
- —
- Release
- 2026-09-16
- Updated
- 2026-09-20
- Weights
- Closed
- Input
- text, image, video
- Output
- text
- Capabilities
- Tools, Reasoning, Structured
Providers
Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.
| Provider | Model ID | Context | Output | Input / output · 1M | Reasoning | Tools | Structured | Details |
|---|---|---|---|---|---|---|---|---|
| AIHubMix | step-5-preview | 1,000,000 | 1,000,000 | $1.08 / $3.0888 | Yes | Yes | Yes | View |
| Eden AI | tencent/step-5-preview | 1,000,000 | 1,000,000 | $1.00 / $2.70 | Yes | No | No | View |
| EmpirioLabs AI | step-5-preview | 1,024,000 | 131,072 | $1.00 / $2.70 | Yes | Yes | Yes | View |
| NanoGPT | stepfun/step-5-preview | 1,000,000 | 1,000,000 | $1.00 / $2.70 | Yes | Yes | Yes | View |
| StepFun (China) | step-5-preview | 1,000,000 | 65,536 | $0.959 / $2.741 | Yes | Yes | Yes | View |
| StepFun (Global) | step-5-preview | 1,024,000 | 65,536 | $1.00 / $2.70 | Yes | Yes | Yes | View |
| StepFun Step Plan (China) | step-5-preview | 1,000,000 | 65,536 | — / — | Yes | Yes | Yes | View |
| StepFun Step Plan (Global) | step-5-preview | 1,000,000 | 65,536 | — / — | Yes | Yes | Yes | View |
| Vercel AI Gateway | stepfun/step-5-preview | 1,000,000 | 1,000,000 | $1.00 / $2.70 | No | No | Yes | View |
Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.
Pricing
Compare token rates and cache charges across available routes and hosting configurations.
Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.
Frequently asked questions
Answers based on the model metadata and serving offers currently in the catalog.
How much does Step 5 Preview cost?
Listed rates start at $0.959 per million input tokens and $2.70 per million output tokens. Prices vary by provider and configuration; see Pricing for details.
Which providers offer Step 5 Preview?
There are 9 cataloged offers across 9 providers. Compare model IDs, prices and limits in Providers.
What is the context window?
The cataloged model context is 1,000,000 tokens. Each serving endpoint may apply a different limit.
Does it support tools and structured output?
Tool calling: Yes. Structured output: Yes. Support can vary by endpoint.
Catalog history · 1 recorded revision
Metadata observations since this model was first cataloged. These are not model release versions.
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