NAGuidance - ComfyUI Built-in Node Documentation

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

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The NAGuidance node applies Normalized Attention Guidance to a model. This technique enables the use of negative prompts with distilled or schnell models by modifying the model’s attention mechanism during the sampling process to steer the generation away from undesired concepts.

Inputs

Parameter	Data Type	Required	Range	Description
model	MODEL	Yes	-	The model to apply Normalized Attention Guidance to.
nag_scale	FLOAT	Yes	0.0 - 50.0	The guidance scale factor. Higher values push the generation further from the negative prompt. (default: 5.0)
nag_alpha	FLOAT	Yes	0.0 - 1.0	The blending factor for the normalized attention. A value of 1.0 fully replaces the original attention, while 0.0 has no effect. (default: 0.5)
nag_tau	FLOAT	Yes	1.0 - 10.0	A scaling factor used to limit the normalization ratio. (default: 1.5)

Outputs

Output Name	Data Type	Description
model	MODEL	The patched model with Normalized Attention Guidance enabled.