> ## Documentation Index
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# ModelSamplingSD3 - ComfyUI Built-in Node Documentation

> The ModelSamplingSD3 node applies Stable Diffusion 3 sampling parameters to a model.

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 | Description                                          | Data Type | Required | Range                    |
| --------- | ---------------------------------------------------- | --------- | -------- | ------------------------ |
| `model`   | The input model to apply SD3 sampling parameters to  | MODEL     | Yes      | -                        |
| `shift`   | Controls the sampling shift parameter (default: 3.0) | FLOAT     | Yes      | 0.0 - 100.0 (step: 0.01) |

Note: The node applies the `shift` value with a fixed internal multiplier of 1000. If the original model has a noise scale setting, it is preserved in the modified model.

## Outputs

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

> 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)

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