> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

# PolyexponentialScheduler - ComfyUI Built-in Node Documentation

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

The PolyexponentialScheduler node is designed to generate a sequence of noise levels (sigmas) based on a polyexponential noise schedule. This schedule is a polynomial function in the logarithm of sigma, allowing for a flexible and customizable progression of noise levels throughout the diffusion process.

## Inputs

| Parameter   | Description                                                                                                                                              | Data Type |
| ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- |
| `steps`     | Specifies the number of steps in the diffusion process, affecting the granularity of the generated noise levels.                                         | INT       |
| `sigma_max` | The maximum noise level, setting the upper bound of the noise schedule.                                                                                  | FLOAT     |
| `sigma_min` | The minimum noise level, setting the lower bound of the noise schedule.                                                                                  | FLOAT     |
| `rho`       | A parameter that controls the shape of the polyexponential noise schedule, influencing how noise levels progress between the minimum and maximum values. | FLOAT     |

## Outputs

| Parameter | Description                                                                                                 | Data Type |
| --------- | ----------------------------------------------------------------------------------------------------------- | --------- |
| `sigmas`  | The output is a sequence of noise levels (sigmas) tailored to the specified polyexponential noise schedule. | SIGMAS    |

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/PolyexponentialScheduler/en.md)