SamplerSEEDS2 - ComfyUI Built-in Node Documentation

Complete documentation for the SamplerSEEDS2 node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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This node provides a configurable sampler for generating images. It implements the SEEDS-2 algorithm, which is a stochastic differential equation (SDE) solver. By adjusting its parameters, you can configure it to behave like several specific samplers, including seeds_2, exp_heun_2_x0, and exp_heun_2_x0_sde.

Inputs

Parameter	Data Type	Required	Range	Description
solver_type	COMBO	Yes	"phi_1" "phi_2"	Selects the underlying solver algorithm for the sampler.
eta	FLOAT	No	0.0 - 100.0	Stochastic strength (default: 1.0).
s_noise	FLOAT	No	0.0 - 100.0	SDE noise multiplier (default: 1.0).
r	FLOAT	No	0.01 - 1.0	Relative step size for the intermediate stage (c2 node) (default: 0.5).

Outputs

Output Name	Data Type	Description
sampler	SAMPLER	A configured sampler object that can be passed to other sampling nodes.