SkipLayerGuidanceSD3 - ComfyUI Built-in Node Documentation

Complete documentation for the SkipLayerGuidanceSD3 node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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The SkipLayerGuidanceSD3 node enhances guidance towards detailed structure by applying an additional set of classifier-free guidance with skipped layers. This experimental implementation is inspired by Perturbed Attention Guidance and works by selectively bypassing certain layers during the negative conditioning process to improve structural details in the generated output.

Inputs

Parameter	Data Type	Required	Range	Description
model	MODEL	Yes	-	The model to apply skip layer guidance to
layers	STRING	Yes	-	Comma-separated list of layer indices to skip (default: “7, 8, 9”)
scale	FLOAT	Yes	0.0 - 10.0	The strength of the skip layer guidance effect (default: 3.0)
start_percent	FLOAT	Yes	0.0 - 1.0	The starting point of guidance application as a percentage of total steps (default: 0.01)
end_percent	FLOAT	Yes	0.0 - 1.0	The ending point of guidance application as a percentage of total steps (default: 0.15)

Outputs

Output Name	Data Type	Description
model	MODEL	The modified model with skip layer guidance applied