Ani4k
The Ani4K release is an ArtCNN GLSL shader for anime upscaling, included among image and video upscaling resources.
About Ani4k
Ani4K v2 ArtCNN is an experimental GLSL shader for upscaling modern anime to 2K or 4K. It uses the ArtCNN architecture trained on a reduced version of the Ani4K v2 dataset, and is built for real-time use on lower-end devices without TensorRT.
It is limited by shader constraints, with reduced fidelity and detail compared with larger models. A compute version is available that may perform better on modern GPUs but was reported to work only with Vulkan in the author's testing.
Key features
- GLSL shader that upscales modern anime to 2K or 4K
- Real-time inference on lower-end devices
- Operates without TensorRT dependency
- Supports Blu-ray and web anime sources
- Compute shader variant for modern GPUs
Best for: People with lower-end hardware who need real-time anime upscaling to 2K or 4K.
Good for
- Real-time inference on lower-end devices
- No TensorRT requirement for real-time speeds
- Compute variant may improve performance on modern GPUs
Watch out for
- Lower fidelity and detail than larger models
- Constrained by inherent shader limitations
- Compute version may only work with Vulkan
Ani4k at a glance
- Category
- Software & Utilities › Media Players & Servers
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Media Players & Servers
Ani4k alternatives
Tools and sites you could use instead, ranked by how closely they match.
The AniSD release is an experimental ArtCNN shader model for standard-definition anime content.
This GLSL shader predicts chroma from luma using a linear regression method and combines it with a standard resampling filter.
Open source
24 alternatives
ArtCNN collects single-image super-resolution models aimed at anime content, with architectures designed for different uses.
Open source
24 alternatives
This GitHub gist provides an AMD FidelityFX Super Resolution GLSL shader for use with mpv.
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