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Step 3.7 Flash

StepFun’s flagship multimodal reasoning model. Powered by a 198B-parameter / 11B-activation sparse MoE architecture, with native support for image and video understanding.

ReasoningVision (Image)Tool Use
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'stepfun/step-3.7-flash',
  prompt: 'Why is the sky blue?'
})
OverviewPlaygroundProvidersThroughputLatencyUptimeStatus
Uptime

Direct request success rate on AI Gateway and per-provider. Visit the docs for more info.