StepFun: Step 3.7 FlashActive

stepfun/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.

By:StepFunInput Type:Output Type:Publish time:2026-05-29

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StepFun

stepfun

-$0.2/ M tokens$1.15/ M tokensRead:0.04/ M tokensWrite:-/ M tokens256K3.64s9.67tps

Uptime

24hours

Direct request success rate on AI Gateway and per-provider.

Throughput

24hours

P50 throughput on live AI Gateway traffic, in tokens per second (TPS).

Latency

24hours

P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds.

Activity

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Token Consumption

Benchmarks

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Metrics sourced fromArtificial Analysis

Apps

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Token Ranking

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