Step 3.7 Flash
Rank #8
stepfun
stepfun/step-3.7-flash-20260528
Usage data date 2026-07-26 · updated daily
Usage and specs
Daily rank#8
Daily tokens1.9T
Daily requests27.9M
Daily change
+155.7%
Context window256K
Released
What is Step 3.7 Flash
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters per token. The model supports a 256K context window and exposes selectable reasoning levels (high/medium/low), letting callers trade off speed, cost, and depth of reasoning. Designed for coding, agentic workflows, structured outputs, and long-context productivity tasks.
Step 3.7 Flash capabilities
Input: Text、Image、Video Output: Text
Step 3.7 Flash API pricing
Input · per 1M tokens$0.20
Output · per 1M tokens$1.15
List prices in USD; see each provider’s site for current terms.