Image
GA
Open source
Step1X-Edit
Local, open-weight instruction-based editing
Release2025-06
Context4K
Max output—
Parameters19B
Local / VRAM24–32 GB
LicenseOpen source
Overview
Step1X-Edit is a model in the Image category from StepFun. It was released in 2025-06. The vendor is based in China. Best for: Local, open-weight instruction-based editing.
Strengths
- Apache-2.0
- Editing-focused
- Strong identity preservation
Limits
- Large
- Not for production
Specifications
| Vendor | StepFun |
|---|---|
| Category | Image |
| Release | 2025-06 |
| Status | GA |
| License | Open source |
| License name | Apache-2.0 |
| Commercial use | Allowed |
| Parameters | 19B |
| Context window | 4K |
| Input modalities | Text, Image |
| Output modalities | Image |
| Prompt types | Text |
| Negative prompts | No |
| Max outputs | 1-2 |
| Resolution | 1MP |
| Local deployment | Yes |
| VRAM | 24–32 GB |
| System RAM | 32–64 GB |
| API access | Yes |
| Pricing | Free weights |
| Confidence | High |
| Vendor country | China |
| Vendor type | Open lab |
Pricing & hardware
Free weights
This model can be self-hosted or run locally. Approximate GPU memory: 24–32 GB. Approximate system RAM: 32–64 GB. API access is available.