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Stepfun/Step-3.5 Flash

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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....

Providers 1
Released Feb 2, 2026
Input Modalities text, image
Output Modalities text

Available Providers (1)

Provider Model ID Input Cost Output Cost Context Max Output Docs
Qiniu stepfun/step-3.5-flash /MTok /MTok 64K 4.1K

Capabilities

Reasoning
Tool Calling
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Open Weights
Structured Output