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stepfun/step-3.5-flash

Rank #239 stepfun

stepfun/step-3.5-flash

Usage data date 2026-09-12 · updated daily

Usage and specs

Daily rank#239
Daily tokens2B
Daily requests119K
Daily change +1.9%
Released

What is stepfun/step-3.5-flash

Step 3.5 Flash is StepFun's most capable open-source foundation model. Built on a sparse Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token....

stepfun/step-3.5-flash capabilities

Input: Text   Output: Text

Reasoning output Reasoning Tool choice Tool use

stepfun/step-3.5-flash API pricing

Input · per 1M tokens$0.10
Output · per 1M tokens$0.30

USD list-price snapshot, not independently verified; confirm current pricing and terms on the provider site before purchase.