> ## 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.

# ModelSamplingSD3 - ComfyUI Built-in Node Documentation

> Complete documentation for the ModelSamplingSD3 node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> 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/ModelSamplingSD3/en.md)

The ModelSamplingSD3 node applies Stable Diffusion 3 sampling parameters to a model. It modifies the model's sampling behavior by adjusting the shift parameter, which controls the sampling distribution characteristics. The node creates a modified copy of the input model with the specified sampling configuration applied.

## Inputs

| Parameter | Data Type | Required | Range       | Description                                          |
| --------- | --------- | -------- | ----------- | ---------------------------------------------------- |
| `model`   | MODEL     | Yes      | -           | The input model to apply SD3 sampling parameters to  |
| `shift`   | FLOAT     | Yes      | 0.0 - 100.0 | Controls the sampling shift parameter (default: 3.0) |

## Outputs

| Output Name | Data Type | Description                                             |
| ----------- | --------- | ------------------------------------------------------- |
| `model`     | MODEL     | The modified model with SD3 sampling parameters applied |