ComfyUI Node
Qwen Image 2.1 Sigma Scheduler
Qwen Image 2.1 external sigmas: native 25-step or explicit dynamic 40-step reference.
Qwen Image 2.1 Sigma Scheduler
- sigmas
- schedule_info
◄mode▾►
◄steps25►
◄target_source▾►
◄width0►
◄height0►
◄image_seq_len0►
◄strict_officialtrue►
◄start_step0►
◄end_step-1►
CategorySigmax/scheduling
Inputs (9)
| Name | Type | Default | Description |
|---|---|---|---|
| mode | COMBO | 2 options: Comfy Native, Diffusers Dynamic | |
| steps | INT | 251–10000 | Native baseline 25; dynamic baseline 40; strict rejects other counts. |
| target_source | COMBO | 3 options: None (Native), Dimensions, Target Tokens | |
| width | INT | 00–1000000 | Dimensions only: positive multiple of 32. Otherwise keep zero. |
| height | INT | 00–1000000 | Dimensions only: positive multiple of 32. Otherwise keep zero. |
| image_seq_len | INT | 00–1000000 | Target Tokens only: target latent tokens without packing or reference images. Otherwise zero. |
| strict_official | BOOLEAN | true | — |
| start_step | INT | 00–9999 | — |
| end_step | INT | -1-1–10000 | — |
Outputs (2)
| Name | Type | Description |
|---|---|---|
| sigmas | SIGMAS | — |
| schedule_info | STRING | — |