Hi! I'm Niels, part of the community science team at Hugging Face. I noticed this repository didn't have a model card yet.
This PR adds a model card for CubiD, including:
- A link to the paper: [Cubic Discrete Diffusion: Discrete Visual Generation on High-Dimensional Representation Tokens](https://huggingface.co/papers/2603.19232).
- A link to the official GitHub repository.
- Metadata including the `pipeline_tag` for unconditional image generation to improve discoverability.
Feel free to merge it if it looks good!
