---
license: apache-2.0
tags:
- image-generation
- autoregressive
- flashar
- llamagen
---

# LlamaGen-FlashAR

This repository collects FlashAR checkpoints for LlamaGen variants.

FlashAR is introduced in **"FlashAR: Efficient Post-Training Acceleration for Autoregressive Image Generation"**. It accelerates raster-scan autoregressive image generation with a vertical prediction branch and a learnable fusion gate, enabling anti-diagonal decoding.

- Paper: [arXiv:2605.09430](https://arxiv.org/abs/2605.09430)
- Project page: [FlashAR](https://lxazjk.github.io/FlashAR/)
- Code: [LlamaGen-FlashAR](https://github.com/lxazjk/LlamaGen-FlashAR)

## Checkpoints

| Variant | Directory | Checkpoint | Extra files |
| --- | --- | --- | --- |
| LlamaGen-B | `B/` | `B/FlashAR-LlamaGen-B.pt` | `B/FlashAR-LlamaGen-B.json` |
| LlamaGen-L | `L/` | `L/FlashAR-LlamaGen-L.pt` | `L/metrics.json` |
| LlamaGen-XL | `XL/` | `XL/FlashAR-LlamaGen-XL.pt` | `XL/FlashAR-LlamaGen-XL.json` |
| LlamaGen-XXL | `XXL/` | `XXL/FlashAR-LlamaGen-XXL.pt` | `XXL/metrics.json` |

Each subdirectory also includes the source model card and `configuration.json` from the corresponding ModelScope checkpoint.

## Layout

```text
.
├── B/
│   ├── FlashAR-LlamaGen-B.pt
│   ├── FlashAR-LlamaGen-B.json
│   ├── configuration.json
│   └── README.md
├── L/
│   ├── FlashAR-LlamaGen-L.pt
│   ├── metrics.json
│   ├── configuration.json
│   └── README.md
├── XL/
│   ├── FlashAR-LlamaGen-XL.pt
│   ├── FlashAR-LlamaGen-XL.json
│   ├── configuration.json
│   └── README.md
└── XXL/
    ├── FlashAR-LlamaGen-XXL.pt
    ├── metrics.json
    ├── configuration.json
    └── README.md
```

## Citation

```bibtex
@article{zhou2026flashar,
  title={FlashAR: Efficient Post-Training Acceleration for Autoregressive Image Generation},
  author={Zhou, Junkang and He, Yefei and Chen, Feng and Wang, Weijie and Zhuang, Bohan},
  journal={arXiv preprint arXiv:2605.09430},
  year={2026}
}
```