BetaSamplingScheduler - ComfyUI Built-in Node Documentation

The BetaSamplingScheduler node generates a sequence of noise levels (sigmas) for the sampling process using a beta scheduling algorithm. It takes a model and configuration parameters to create a customized noise schedule that controls the denoising process during image generation. This scheduler allows fine-tuning of the noise reduction trajectory through alpha and beta parameters.

Inputs

Parameter	Description	Data Type	Required	Range
`model`	The model used for sampling, which provides the model sampling object	MODEL	Yes	-
`steps`	The number of sampling steps to generate sigmas for (default: 20)	INT	Yes	1 to 10000
`alpha`	Alpha parameter for the beta scheduler, controlling the scheduling curve (default: 0.6, advanced parameter)	FLOAT	Yes	0.0 to 50.0
`beta`	Beta parameter for the beta scheduler, controlling the scheduling curve (default: 0.6, advanced parameter)	FLOAT	Yes	0.0 to 50.0

Outputs

Output Name	Description	Data Type
`SIGMAS`	A sequence of noise levels (sigmas) used for the sampling process	SIGMAS

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