StepFun: Step 3.7 Flash

proprietary

Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model.

Context
262K
Max output
230K
Input price
$0.2/1M tokens
Output price
$1.15/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode

Details

Model IDstepfun/step-3.7-flash
Provider OpenRouter
Creator StepFun
Family—
Licenseproprietary
Status—
Type—
Input modalitiestext, image, video
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window262K tokens
Max input—
Max output230K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$0.2
Output
$1.15
Cache write
—
Cache read
$0.04
Batch in
—
Batch out
—

API

GET/v1/models/openrouter/stepfun/step-3.7-flash