Author

Tian Ye

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Preprint Sep 2026

SoL-Refiner: Speed-of-Light One-Step Refinement for High-Resolution Video

High-resolution video generation is expensive, as its cost grows rapidly with the number of spatiotemporal tokens. A practical alternative first generates a lower-resolution video and then applies a refiner, but conventional multi-step refinement introduces a second sampling bottleneck. We present SoL-Refiner, a one-st...

Hao-Zhe Liu, Tian Ye, Shuchen Xue et al. · 0 citations

Jul 2026

Sol-Attn: Accelerating Video Generation Inference via On-the-Fly Attention Sparsification

This paper introduces training-free Sol-Attn (Sparsifying online attention), which unifies dynamic routing, sparse computation, and approximation correction in a single online-softmax pass, achieving a better accuracy-efficiency trade-off in sparse attention.

Haopeng Li, Yitong Li, Junsong Chen et al. · arXiv.org · 2 citations

Jul 2026

SANA-Video 2.0: Hybrid Linear Attention with Attention Residuals for Efficient Video Generation

This work introduces SANA-Video 2.0, a hybrid video diffusion transformer instantiated at 5B and 14B scales under a unified architecture that recovers softmax-level expressiveness at substantially reduced cost, unlocking scalable long, high resolution video generation.

Junsong Chen, Jincheng Yu, Yitong Li et al. · arXiv.org · 1 citation · ⚡1