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Attribute Step 3.7 FlashStepFun
Overview
Developer StepFun
Released May 29, 2026
Type Multimodal
Weights Open weights
Status Active
License Apache License 2.0
Size and context
Architecture MoE
Parameters 198B
Active parameters 11B
Context window 262K
Max output -
Knowledge cutoff -
Price per 1M tokens (USD)
Input, current $0.20
Output, current $1.15
Input, at launch $0.20
Output, at launch $1.15

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