Using Step-1 on StepFun

Implementation guide · Step · StepFun

Serverless

StepFun exposes Step-1 through model ID step-1. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-06-29. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at StepFun and generate an API key.
  2. 2
    Use the StepFun SDK or REST API to call step-1 — see the documentation for request format.
API PortalDocumentation

Code Examples

See StepFun documentation for integration details.

Pricing on StepFun

Capabilities

No model capability flags are currently sourced.

About Step-1

Step-1 is StepFun's Step model. It offers a 128K-token context window.

Full model details →

Model Specs

Released2024-04-01
Context128k
ArchitectureDecoder Only

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Step-1.5VStep-2Step 3.7 Flash
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Provider

StepFun