Stable Diffusion 2.0 and 2.1: ComfyUI Model Download Guide
Stability AI SD 2.1 checkpoints for ComfyUI, plus thibaud SD 2.1 ControlNet safetensors. Notes SD 1.5 ControlNet v1.1 compatibility with SD 2.0.
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Stable Diffusion 2.0 / 2.1
Text-to-ImageOpen SourceControlNetStability AI SD 2.x UNet lineage. This page focuses on official SD 2.1 768 checkpoints and dedicated SD 2.1 ControlNets (thibaud). SD 2.0 often reuses SD 1.5 ControlNet v1.1 weights — see compatibility note below.
| Developer | Stability AI |
| Architecture | Latent Diffusion (UNet) + OpenCLIP text encoder |
| Native resolution (2.1) | 768×768 |
| ComfyUI folder (base) | models/checkpoints |
| ComfyUI folder (ControlNet) | models/controlnet |
| ControlNet guide | /en/tutorial/advanced/how-to-install-and-use-controlnet-models-in-comfyui |
ControlNet compatibility (from the EN ControlNet v1.1 resource page): Stable Diffusion 1.5 and 2.0 model stacks are treated as compatible for ControlNet v1.1 — the same ControlNet v1.1 weights trained for SD 1.5 can also be used with SD 2.0 in many workflows. For SD 2.1, prefer the dedicated thibaud SD 2.1 ControlNet safetensors in the Model Hub catalog. See also SD 1.5 ControlNet downloads.
Guides and workflows related to this model series.
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