AB-Attention
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- AB-Attention accelerates video diffusion transformers
Bin Xu and eight other authors submitted “AB-Attention: Accurate Block Attention for Accelerating Video Diffusion Transformers” to arXiv on October 29, 2026. The training-free method combines block selection, inclusion-probability weighting and finer key/value gathering to approximate dense attention at high sparsity. On Wan2.1 and HunyuanVideo, the authors report skipping 89–92% of attention computation and achieving up to 2.23× end-to-end speedup.
Hugging Face · Papers · 🔥 0
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