Step 3.7 Flash model ID, context window & pricing
step
Quick facts
Model ID stepfun/step-3.7-flash
Source OpenRouter
Context Window 256000
Pricing $0.20 input / $1.15 output per 1M tokens
Capabilities tool calling, reasoning, structured output, temperature control
Model overview
Step 3.7 Flash is an AI model from OpenRouter with 256000 token context window and text, image, video input support.
Published pricing is $0.20 input and $1.15 output per 1M tokens.
- Workloads that use text, image, video inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID stepfun/step-3.7-flash
Provider OpenRouter
Family step
Status -
Knowledge Cutoff -
Release Date 2026-05-28
Input Modalities text, image, video
Output Modalities text
Context Window 256000
Input Limit -
Output Limit 256000
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $0.20
Output Cost / 1M tokens $1.15
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.04
Cache Write Cost / 1M tokens -