NextStep-1.1
StepFun · China
StepFun text-to-image model
- Release month
- Field
- Image
- Availability
- open-weight
- Parameters
- 15B
- License
- apache-2.0 · Commercial OK
Overview
- Registered on Hugging Face December 23, 2025 · Open weights
- Generates images from text · Fewer artifacts than NextStep-1 via reinforcement learning
View official announcement ↗
← All models