StepFunImage model
NextStep-1.1
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Summary
NextStep-1.1 is an image model from StepFun. The reviewed model specifications list 15B parameters.
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All specifications
Architecture
Licence and access
Further details
- Documented setup
- The official local example uses 512 × 512 pixels. The pipeline has a negative-prompt parameter, so the empty-negative-prompt setting must be fixed explicitly in the test protocol.
- Source: Documented setup
Sources and data date
| Type | Evidence and data date |
|---|---|
| Additional source | StepFun (retrieved November 1, 2026) · StepFun · Editorial description reviewed November 1, 2026 |
| Additional source | StepFun (retrieved November 1, 2026) |