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tags:
- art
---
# AI Upscalers
This repository collects various AI upscaling models for image enhancement.
Each model inherits its original license, which must be respected. Please review the license details before use, especially for commercial purposes.
## Models
| Model | Type | License | Commercial Use | Features | Recommended |
| --- | --- | --- | --- | --- | --- |
| RealESRGAN_x4plus | ESRGAN | BSD 3-Clause | ✅ | Balanced | ✅ |
| RealESRGAN_x4plus_anime_6B | ESRGAN | BSD 3-Clause | ✅ | Anime Style | ✅ |
| 4x-AnimeSharp | ESRGAN | CC-BY-NC-SA-4.0 | ❌ | Sharp | |
| 4x-UltraSharp_150000 | ESRGAN | CC-BY-NC-SA-4.0 | ❌ | Sharp | |
| 4x_foolhardy_Remacri_210000 | ESRGAN | CC-BY-NC-SA-4.0 | ❌ | Sharp | |
| 4x_fatal_Anime_500000_G | ESRGAN | CC-BY-NC-SA-4.0 | ❌ | | |
| 4x_IllustrationJaNai_V1_ESRGAN_135k | ESRGAN | CC-BY-NC-SA-4.0 | ❌ | Anime Style | ✅ |
| 4x_NMKD-Superscale-SP_178000_G | ESRGAN | WTFPL | ✅ | Balanced | |
| 4x-NMKD-YandereNeo_320k | ESRGAN | WTFPL | ✅ | Balanced | |
| 4x_NMKD-YandereNeoXL_200k | ESRGAN | WTFPL | ✅ | Balanced | ✅ |
| 4x_escale_100000_G | ESRGAN | WTFPL | ✅ | | |
| 4x_RealisticRescaler_100000_G | ESRGAN | WTFPL | ✅ | Natural | ✅ |
| 4x PSNR_Pretrained | ESRGAN | Apache-2.0 | ✅ | | |
| 4x_UniversalUpscalerV2-Neutral_115000_G | ESRGAN | WTFPL | ✅ | | |
| 4x_UniversalUpscalerV2-Sharper_103000_G | ESRGAN | WTFPL | ✅ | | |
| 4x_UniversalUpscalerV2-Sharp_101000_G | ESRGAN | WTFPL | ✅ | | |
| 4x-PBRify_RPLKSRd_V3_160000 | PLKSR | CC0-1.0 | ✅ | | |
| OmniSR_X4_DIV2K | OmniSR | Apache-2.0 | ✅ | | |
| 4x-SwinIR-L_GAN | SwinIR | Apache-2.0 | ✅ | | |
| 4x-SwinIR-L_PNSR | SwinIR | Apache-2.0 | ✅ | | |
| 4xNomos2_hq_drct-l_200000 | DRCT | CC-BY-4.0 | ✅ | | |
| 4x_IllustrationJaNai_V1_DAT2_190k | DAT | CC-BY-NC-SA-4.0 | ❌ | Anime Style | |
| 4xNomos2_hq_dat2_140000 | DAT | CC-BY-4.0 | ✅ | Natural | |
| 4xNomos8kDAT_110000 | DAT | CC-BY-4.0 | ✅ | Natural | |
| 4xNomos8kHAT-L_otf_220000 | HAT | CC-BY-4.0 | ✅ | Natural | |
## OpenModelDB Links
- [RealESRGAN_x4plus](https://openmodeldb.info/models/4x-realesrgan-x4plus)
- [RealESRGAN_x4Plus Anime 6B](https://openmodeldb.info/models/4x-realesrgan-x4plus-anime-6b)
- [4x_AnimeSharp](https://openmodeldb.info/models/4x-AnimeSharp)
- [4x-UltraSharp_150000](https://openmodeldb.info/models/4x-UltraSharp)
- [4x_foolhardy_Remacri_210000](https://openmodeldb.info/models/4x-Remacri)
- [4x_fatal_Anime_500000_G](https://openmodeldb.info/models/4x-Fatal-Anime)
- [IllustrationJaNai_V1_ESRGAN_135k](https://openmodeldb.info/models/4x-IllustrationJaNai-V1-ESRGAN)
- [4x_NMKD-Superscale-SP_178000_G](https://openmodeldb.info/models/4x-NMKD-Superscale)
- [4x-NMKD-YandereNeo_320k](https://openmodeldb.info/models/4x-NMKD-YandereNeo)
- [4x_NMKD-YandereNeoXL_200k](https://openmodeldb.info/models/4x-NMKD-YandereNeo-XL)
- [4x_escale_100000_G](https://openmodeldb.info/models/4x-escale)
- [4x_RealisticRescaler_100000_G](https://openmodeldb.info/models/4x-RealisticRescaler)
- [4x PSNR Pretrained](https://openmodeldb.info/models/4x-PSNR)
- [4x_UniversalUpscalerV2-Neutral_115000_G](https://openmodeldb.info/models/4x-UniversalUpscalerV2-Neutral)
- [4x_UniversalUpscalerV2-Sharper_103000_G](https://openmodeldb.info/models/4x-UniversalUpscalerV2-Sharper)
- [4x_UniversalUpscalerV2-Sharp_101000_G](https://openmodeldb.info/models/4x-UniversalUpscalerV2-Sharp)
- [4x-PBRify_RPLKSRd_V3_160000](https://openmodeldb.info/models/4x-PBRify-RPLKSRd-V3)
- [OmniSR_X4_DIV2K](https://openmodeldb.info/models/4x-OmniSR-DIV2K)
- [4x-SwinIR-L_GAN](https://github.com/JingyunLiang/SwinIR/releases/tag/v0.0)
- [4x-SwinIR-L_PNSR](https://github.com/JingyunLiang/SwinIR/releases/tag/v0.0)
- [4xNomos2_hq_drct-l_200000](https://openmodeldb.info/models/4x-Nomos2-hq-drct-l)
- [IllustrationJaNai_V1_DAT2_190k](https://openmodeldb.info/models/4x-IllustrationJaNai-V1-DAT2)
- [4xNomos2_hq_dat2_140000](https://openmodeldb.info/models/4x-Nomos2-hq-dat2)
- [4xNomos8kDAT_110000](https://openmodeldb.info/models/4x-Nomos8kDAT)
- [4xNomos8kHAT-L_otf_220000](https://openmodeldb.info/models/4x-Nomos8kHAT-L-otf)
## Comparison for Anime Illustrations (External Site)
- [Comparison image](https://www.ai-image-journey.com/p/upscale-model.html)
- [Guide](https://www.ai-image-journey.com/2025/04/ai-upscale-hires-fix.html)
## Licenses
The following licenses apply to the models in this repository, listed from most restrictive to least restrictive:
| License | Description | Restrictions | Original License Text |
| --- | --- | --- | --- |
| [CC-BY-NC-SA-4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) | Non-commercial use only, must share under the same license. | Non-commercial, same license sharing | [CC-BY-NC-SA-4.0 Legal Code](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) |
| [BSD 3-Clause](https://opensource.org/licenses/BSD-3-Clause) | Requires copyright notice and disclaimer. | Copyright notice, disclaimer | [BSD 3-Clause License](https://opensource.org/licenses/BSD-3-Clause) |
| [Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0) | Requires copyright notice and change log. | Copyright notice, change log | [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0.txt) |
| [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/) | Requires attribution. | Attribution | [CC-BY-4.0 Legal Code](https://creativecommons.org/licenses/by/4.0/legalcode) |
| [CC0-1.0](https://creativecommons.org/publicdomain/zero/1.0/) | Public domain, no restrictions. | None | [CC0-1.0 Legal Code](https://creativecommons.org/publicdomain/zero/1.0/legalcode) |
| [WTFPL](http://www.wtfpl.net/) | Do whatever you want. | None | [WTFPL License](http://www.wtfpl.net/txt/copying/) | |