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| # Single files | |
| Diffusers supports loading pretrained pipeline (or model) weights stored in a single file, such as a `ckpt` or `safetensors` file. These single file types are typically produced from community trained models. There are three classes for loading single file weights: | |
| - [`FromSingleFileMixin`] supports loading pretrained pipeline weights stored in a single file, which can either be a `ckpt` or `safetensors` file. | |
| - [`FromOriginalVAEMixin`] supports loading a pretrained [`AutoencoderKL`] from pretrained ControlNet weights stored in a single file, which can either be a `ckpt` or `safetensors` file. | |
| - [`FromOriginalControlnetMixin`] supports loading pretrained ControlNet weights stored in a single file, which can either be a `ckpt` or `safetensors` file. | |
| <Tip> | |
| To learn more about how to load single file weights, see the [Load different Stable Diffusion formats](../../using-diffusers/other-formats) loading guide. | |
| </Tip> | |
| ## FromSingleFileMixin | |
| [[autodoc]] loaders.single_file.FromSingleFileMixin | |
| ## FromOriginalVAEMixin | |
| [[autodoc]] loaders.autoencoder.FromOriginalVAEMixin | |
| ## FromOriginalControlnetMixin | |
| [[autodoc]] loaders.controlnet.FromOriginalControlNetMixin |