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Created by
stepfun
stepfunReleasedMay 28, 2026
StepFun’s flagship multimodal reasoning model. Powered by a 198B-parameter / 11B-activation sparse MoE architecture, with native support for image and video understanding.
Limits
Context Length256K
Max Output Tokens256K
Pricing
Pricing (Input)$0.20/M
Pricing (Output)$1.15/M
Caching
Input Modalities
Text
Image
PDF
Audio
Output Modalities
Text
Image
Audio
Features
Reasoning
Tools
Temperature
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