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Provider details

StepFun Step Plan (China)

Learn more about this provider, then browse the models currently listed under it.

stepfun-step-planstepfun-step-plan
Provider docs

Latest news about StepFun Step Plan (China)

About StepFun Step Plan (China)

What they do

StepFun Step Plan is StepFun's China-region subscription service for accessing reasoning models through OpenAI-compatible and Anthropic-compatible APIs in coding agents and developer tools.

How they were founded

Step Plan is part of StepFun, which was founded on April 6, 2023 by Jiang Daxin, Zhu Yibo, and Jiao Binxing to build multimodal and generative AI models.

Quick Info

Organization
StepFun
Headquarters
Shanghai, China
SDK package
@ai-sdk/openai-compatible
Synced at
Jul 13, 2026

Models served

5 models available through StepFun Step Plan (China)

These model results are sorted newest first so you can quickly see the latest options from this provider.

StepFun Step Plan (China)
Step 5 Preview
step-5-previewStepFun Step Plan (China)Released Sep 16, 20261,000,000 token context window
Input
Output
StepFun Step Plan (China)
Step 3.7 Flash
step-3.7-flashStepFun Step Plan (China)Released May 29, 2026256,000 token context window
Input
Output