What is HiStream?
HiStream is an efficient autoregressive diffusion framework for high-resolution video generation that eliminates redundancy across spatial, temporal, and timestep dimensions for dramatic speedups.
When was HiStream announced?
It was announced via arXiv preprint on December 24, 2025 (arXiv:2512.21338), with project page and GitHub repo details.
How fast is HiStream compared to baselines?
The primary model achieves up to 76.2 times faster denoising at 1080p vs Wan2.1; HiStream+ reaches 107.5 times acceleration with negligible quality loss.
Is HiStream open-source?
Code is under legal review and pending full release on GitHub (arthur-qiu/HiStream); no public model weights or demo available yet.
What resolution does HiStream support?
It focuses on native 1080p video generation, outperforming super-resolution approaches in quality and efficiency.
Who developed HiStream?
Led by Haonan Qiu with collaborators from Meta AI and Nanyang Technological University, including corresponding authors Ziwei Liu and Juan-Manuel Perez-Rua.
Is HiStream free to use?
As a research paper and pending open-source code, it is free for academic/experimental use once released; no commercial pricing mentioned.
What makes HiStream unique?
It introduces redundancy elimination across three axes for massive speedups while maintaining SOTA visual quality in native high-resolution synthesis.




