> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-feat-openapi-i18n.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# SamplerSASolver - ComfyUI Built-in Node Documentation

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

The SamplerSASolver node implements a custom sampling algorithm for diffusion models. It uses a predictor-corrector approach with configurable order settings and stochastic differential equation (SDE) parameters to generate samples from the input model.

## Inputs

| Parameter           | Description                                                             | Data Type | Required | Range       |
| ------------------- | ----------------------------------------------------------------------- | --------- | -------- | ----------- |
| `model`             | The diffusion model to use for sampling                                 | MODEL     | Yes      | -           |
| `eta`               | Controls the step size scaling factor (default: 1.0)                    | FLOAT     | No       | 0.0 - 10.0  |
| `sde_start_percent` | The starting percentage for SDE sampling (default: 0.2)                 | FLOAT     | No       | 0.0 - 1.0   |
| `sde_end_percent`   | The ending percentage for SDE sampling (default: 0.8)                   | FLOAT     | No       | 0.0 - 1.0   |
| `s_noise`           | Controls the amount of noise added during sampling (default: 1.0)       | FLOAT     | No       | 0.0 - 100.0 |
| `predictor_order`   | The order of the predictor component in the solver (default: 3)         | INT       | No       | 1 - 6       |
| `corrector_order`   | The order of the corrector component in the solver (default: 4)         | INT       | No       | 0 - 6       |
| `use_pece`          | Enables or disables the PECE (Predict-Evaluate-Correct-Evaluate) method | BOOLEAN   | No       | -           |
| `simple_order_2`    | Enables or disables simplified second-order calculations                | BOOLEAN   | No       | -           |

## Outputs

| Output Name | Description                                                        | Data Type |
| ----------- | ------------------------------------------------------------------ | --------- |
| `sampler`   | A configured sampler object that can be used with diffusion models | SAMPLER   |

> 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/SamplerSASolver/en.md)

***

**Source fingerprint (SHA-256):** `f1491a63377d4d8a5c44cb7109afba09678ef9c048786f9086a5437aacb17753`