ManualSigmas - ComfyUI Built-in Node Documentation - ComfyUI

The ManualSigmas node allows you to manually define a custom sequence of noise levels (sigmas) for the sampling process. You input a list of numbers as a string, and the node converts them into a tensor that can be used by other sampling nodes. This is useful for testing or creating specific noise schedules.

Inputs

Parameter	Description	Data Type	Required	Range
`sigmas`	A string containing the sigma values. The node extracts all numbers from this string, including decimals and negative values. For example, “1, 0.5, 0.1” or “1 0.5 0.1”. Default: “1, 0.5”.	STRING	Yes	Any comma- or space-separated numeric values

Note: This node is marked as experimental.

Outputs

Output Name	Description	Data Type
`sigmas`	A tensor containing the sequence of sigma values extracted from the input string.	SIGMAS

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