Stepfun · AI MODEL
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...
Specifications
Source
Prices come from the linked provider source and represent list prices before individual discounts.
Open sourceHugging Face
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History
| Date | Input / 1M | Output / 1M | Confidence |
|---|---|---|---|
| 10/15/2026, 11:00:44 PM | $1.00 | $2.70 | 100% |
| 10/8/2026, 1:00:01 PM | $1.00 | $2.70 | 100% |
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