Step 3.7 Flash

stepfun/step-3.7-flash

Newer StepFun flash model for faster agents, coding, and multimodal prompts

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Context window: 256K
Input: Image · Text · Video
Output: Text
Released: 2026-05-29

Max output: 256K
Knowledge cutoff: 2026-03-01
Model parameters: 201B
Active parameters: 11B
Weights: Open
License: apache-2.0
Capabilities: Attachments, Open weight, Reasoning, Temperature, Tool call

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Performance

Overall capability

47.4/100

Coding: 45.0
Reasoning: 44.8
Professional work: 45.8
Knowledge & language: 57.5


CritPtStep 3.7 Flash	Reasoning	Artificial Analysis	2026-11-05
Humanity’s Last ExamStep 3.7 Flash	Reasoning	Artificial Analysis	2026-11-05
IFBench（Artificial Analysis）Step 3.7 Flash	Knowledge & language	Artificial Analysis	2026-11-05
AA-LCRStep 3.7 Flash	Knowledge & language	Artificial Analysis	2026-11-05
SciCodeStep 3.7 Flash	Coding	Artificial Analysis	2026-11-05
GDPval-AA	Professional work	Artificial Analysis	2026-11-05
AA-OmniscienceStep 3.7 Flash	Knowledge & language	Artificial Analysis	2026-10-27
SciCode	Coding	SciCode	2026-06-15

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ModelRegistry · Catalog updated 2026-11-05