---
license: mit
language:
- en
pipeline_tag: image-to-image
tags:
- coreml
- mlpackage
- coremltools
- ios
- macos
- apple-silicon
- super-resolution
- realesrgan
- img2img
- image-enhancement
- upscale
- denoise
- xcode
- neural-engine
---

A curated collection of CoreML (`.mlpackage`) models
These Models Can be used easily inside of Xcode projects targeting across apple products

If you have link/download issues, my GitHub collection is here:
https://github.com/marshiyar/CoreML-Model-Zoo (downloads in Releases)

### RealESRGAN x4

<details>
<summary><strong>Model contract</strong></summary>

- **Predictions:** <code>1x3x256x256 -> 1x3x1024x1024</code>
- **Filename mapping:** <code>&lt;model_id&gt;.mlpackage</code>

</details>
 File sizes are based on the zipped .mlpackage archives.

| Model ID | Size | Input | Output | Profile |
| ----------------------------------- | ------- | ----- | ------ | ------- |
| [RealESRGAN_x4&nbsp;<sup>⬇️</sup>](https://huggingface.co/marshiyar/RealESRGAN_x4_CoreML/resolve/main/RealESRGAN_x4.mlpackage.zip) | 31 MB | <img src="https://github.com/marshiyar/CoreML-Model-Zoo/releases/download/readme-assets/RealESRGAN_x4_model_Input1.png" width="120" /> | <img src="https://github.com/marshiyar/CoreML-Model-Zoo/releases/download/readme-assets/RealESRGAN_x4.png" width="120" /> | base |
| [RealESRGAN_x4_Q-8&nbsp;<sup>⬇️</sup>](https://huggingface.co/marshiyar/RealESRGAN_x4_CoreML/resolve/main/RealESRGAN_x4_Q-8.mlpackage.zip) | 13.6 MB |  | <img src="https://github.com/marshiyar/CoreML-Model-Zoo/releases/download/readme-assets/RealESRGAN_x4_Q-8.png" width="120" /> | Q-8 |
| [RealESRGAN_x4_pal-4&nbsp;<sup>⬇️</sup>](https://huggingface.co/marshiyar/RealESRGAN_x4_CoreML/resolve/main/RealESRGAN_x4_pal-4.mlpackage.zip) | 7.66 MB |  | <img src="https://github.com/marshiyar/CoreML-Model-Zoo/releases/download/readme-assets/RealESRGAN_x4_pal-4.png" width="120" /> | pal-4 |


### Performance Benchmarks (RealESRGAN x4)

Tested on MacBook Pro (Apple Silicon M4 Max, 36 GB) running macOS 15.7.2 using Xcode Performance tab with Compute Units: All.

  <details>
  <summary><strong>Part 1 — Model + device info</strong></summary>
    
| Model File Name     | Model Type   | Model Size   | Device Type   | Software Version   |  Compute Units                |
|:--------------------|:-------------|:-------------|:--------------|:-------------------|:------------------------------|
| RealESRGAN_x4       | ML Program   | 34.1 MB      | MacBook Pro   | macOS 15.7.2       | All (CPU, GPU, Neural Engine) |
| RealESRGAN_x4_Q-8   | ML Program   | 17.6 MB      | MacBook Pro   | macOS 15.7.2       | All (CPU, GPU, Neural Engine) |
| RealESRGAN_x4_pal-4 | ML Program   | 9.2 MB       | MacBook Pro   | macOS 15.7.2       | All (CPU, GPU, Neural Engine) |

  </details>

  <details>
  <summary><strong>Part 2 — Operations</strong></summary>

| Model File Name     |   Neural Engine Operations |   CPU Operations |   GPU Operations | Total Operations   |
|:--------------------|---------------------------:|-----------------:|-----------------:|:-------------------|
| RealESRGAN_x4       |                        955 |                0 |               71 | 1,026              |
| RealESRGAN_x4_Q-8   |                        955 |                0 |               71 | 1,026              |
| RealESRGAN_x4_pal-4 |                        955 |                0 |               71 | 1,026              |

</details>

<details>
  <summary><strong>Part 3 — Performance (Prediction / Load / Compile)</strong></summary>
  
| Model File Name     | Metric     | Average   | Median   | Minimum   | Maximum   | Uncached   |
|:--------------------|:-----------|:----------|:---------|:----------|:----------|:-----------|
| RealESRGAN_x4       | Prediction | 198.62    | 196.61   | 191.82    | 251.10    | 251.10     |
| RealESRGAN_x4       | Load       | 82.63     | 83.41    | 78.56     | 84.40     | 1,946.85   |
| RealESRGAN_x4       | Compile    | 199.57    | 197.59   | 195.36    | 205.77    | 195.36     |
| RealESRGAN_x4_Q-8   | Prediction | 201.30    | 199.74   | 192.94    | 236.59    | 236.59     |
| RealESRGAN_x4_Q-8   | Load       | 94.53     | 94.92    | 90.93     | 96.17     | 2,399.90   |
| RealESRGAN_x4_Q-8   | Compile    | 222.40    | 222.53   | 220.22    | 224.45    | 220.22     |
| RealESRGAN_x4_pal-4 | Prediction | 200.81    | 199.31   | 193.33    | 259.98    | 259.98     |
| RealESRGAN_x4_pal-4 | Load       | 90.99     | 91.74    | 85.77     | 93.65     | 2,103.96   |
| RealESRGAN_x4_pal-4 | Compile    | 211.95    | 211.87   | 211.81    | 212.18    | 212.18     |

</details>



## Author

Arshiya Rahgozar  
[GitHub](https://github.com/marshiyar)

## Attributions

Thanks to the authors of Real-ESRGAN
Real-world image super-resolution. Original project: [xinntao/Real-ESRGAN](https://github.com/xinntao/Real-ESRGAN) (BSD-3-Clause).