Step 3.7 Flash

stepfun/step-3.7-flash

Try model

Overview Pricing API integration

Overview

Model description: original source language.

Step 3.7 Flash 是阶跃星辰推出的旗舰多模态推理模型，基于 198B 总参数 / 11B 激活参数的稀疏 MoE 架构，原生支持图片和视频理解，具备 256K tokens 长上下文和高速低延迟的推理能力。

Textstepfun

Pricing

Pricing follows the current settings of your account group.

View available groups

API integration

Use a Yunhai API key to call configured models.

curl "$YUNHAI_BASE_URL/chat/completions" \
  -H "Authorization: Bearer $YUNHAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"stepfun/step-3.7-flash","messages":[{"role":"user","content":"你好"}]}'