Stepfun · AI MODEL
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....
Specifications
Source
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Open sourceHugging Face
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History
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| Date | Input / 1M | Output / 1M | Confidence |
|---|---|---|---|
| 9/7/2026, 7:57:41 AM | $0.100 | $0.300 | 100% |
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