---
license: mit
tags:
- image-to-image
- super-resolution
- mlx
- mlx-swift
---

# Real-ESRGAN MLX (Swift)

PyTorch → MLX Swift converted weights for [Real-ESRGAN](https://github.com/xinntao/Real-ESRGAN).

Use with [mlx-realesrgan-swift](https://github.com/nanguoyu/mlx-realesrgan-swift).

## Files

| File | Variant | Architecture | Size |
|---|---|---|---|
| `realesr-general-x4v3.safetensors` | SRVGGNetCompact ×4 (general) | 34 conv + 33 PReLU + PixelShuffle | 4.9 MB |
| `realesr-animevideov3.safetensors` | SRVGGNetCompact ×4 (anime video) | 18 conv + 17 PReLU + PixelShuffle | 2.5 MB |
| `RealESRGAN_x4plus.safetensors` | RRDBNet ×4 (flagship) | 351 conv across 23 RRDB blocks | 66.9 MB |
| `RealESRGAN_x4plus_anime_6B.safetensors` | RRDBNet ×4 (anime stills) | 96 conv across 6 RRDB blocks | 17.9 MB |

## Conversion details

- Conv2d weights permuted OIHW → OHWI (MLX NHWC convention)
- All tensors float32

## License

This conversion (this README, the `.safetensors` packaging, and any added metadata) is released under the **MIT License** — see the LICENSE in the companion GitHub repo.

The underlying neural network weights are derived from the official Real-ESRGAN PyTorch releases by Xintao Wang and the BasicSR / XPixelGroup contributors, originally distributed under the **BSD 3-Clause License**. That license and the original copyright notice continue to apply to the substantive weight content.

Upstream: https://github.com/xinntao/Real-ESRGAN
Upstream license: https://github.com/xinntao/Real-ESRGAN/blob/master/LICENSE

## Acknowledgements

- [xinntao/Real-ESRGAN](https://github.com/xinntao/Real-ESRGAN) — original PyTorch implementation and trained weights
- [XPixelGroup/BasicSR](https://github.com/XPixelGroup/BasicSR) — architecture definitions