Model dossier

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...

Context256,000
Max output256,000
Pricing viewTVP price

StepFun: Step 3.7 Flash

Model ID
stepfun/step-3.7-flash
Canonical slug
stepfun/step-3.7-flash-20260528
Knowledge cutoff
n/a
Created
5/28/2026
textimagevideotoolsstructured
text+image+video->texttextimagevideo
Context256,000
Max output256,000
TokenizerOther