> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# ExponentialScheduler - ComfyUI Built-in Node Documentation

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

The `ExponentialScheduler` node is designed to generate a sequence of sigma values following an exponential schedule for diffusion sampling processes. It provides a customizable approach to control the noise levels applied at each step of the diffusion process, allowing for fine-tuning of the sampling behavior.

## Inputs

| Parameter   | Data Type | Description                                                                                                                                                                     |
| ----------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `steps`     | INT       | Specifies the number of steps in the diffusion process. It influences the length of the generated sigma sequence and thus the granularity of the noise application.             |
| `sigma_max` | FLOAT     | Defines the maximum sigma value, setting the upper limit of noise intensity in the diffusion process. It plays a crucial role in determining the range of noise levels applied. |
| `sigma_min` | FLOAT     | Sets the minimum sigma value, establishing the lower boundary of noise intensity. This parameter helps in fine-tuning the starting point of the noise application.              |

## Outputs

| Parameter | Data Type | Description                                                                                                                                                          |
| --------- | --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `sigmas`  | SIGMAS    | A sequence of sigma values generated according to the exponential schedule. These values are used to control the noise levels at each step of the diffusion process. |