step-5-preview

previewproprietary

推荐优先使用。面向真实任务的新一代旗舰基模，原生支持文本、图片和视频输入，提供 1M tokens 上下文，支持三档推理强度（low/medium/high）。适合图表分析、截图问答、视频总结和跨文档多模态任务。详见 Step 5 Preview。

Context
1M
Input price
$1/1M tokens
Output price
$2.7/1M tokens

Capabilities

Infrastructure
Streaming

Details

Model IDstepfun/step-5-preview
Provider Vercel AI Gateway
Creator StepFun
Family—
Licenseproprietary
Statuspreview
Typechat
Input modalitiestext, image
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window1M tokens
Max input—
Max output—
Reasoning tokens—
Knowledge cutoff—
Release date—
Sourceofficial

Pricing

Input
$1
Output
$2.7
Cache write
—
Cache read
—
Batch in
—
Batch out
—

API

GET/v1/models/vercel/stepfun/step-5-preview