Paper page - SANA-Streaming: Real-time Streaming Video Editing with Hybrid Diffusion Transformer

Source: https://huggingface.co/papers/2605.30409 Published on May 28

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Submitted byhttps://huggingface.co/Yuyang-z

Yuyangon Jun 1

Abstract

SANA-Streaming enables real-time high-resolution video-to-video editing through a hybrid diffusion transformer architecture, cycle-reverse regularization, and efficient system co-design optimized for consumer GPUs.

Real-time streaming video-to-video editing (V2V) is critical for interactive applications such as live broadcasting and gaming, yet it remains a formidable challenge due to the stringent requirements fortemporal consistencyand inference throughput. In this paper, we present SANA-Streaming, asystem-algorithm co-designed framework for high-resolution, real-time streaming video editing on consumer GPUs, with the following three core designs: (1) HybridDiffusion Transformerarchitecture introducessoftmax attentionin part of the blocks to improve local modeling capabilities while preserving the efficiency of linear layers. (2) Cycle-Reverse Regularization is a novel training strategy that enforces semantic consistency by predicting source frames from generated content viaflow matching, improvingtemporal consistencywithout requiring paired long edited videos. (3) Efficient System Co-design combines fused GDN kernels andMixed-Precision Quantization(MPQ) optimized for the NVIDIA Blackwell (RTX 5090) architecture. By profiling real-world throughput, our MPQ maximizes Tensor Core utilization while maintaining generation quality. The resulting system achieves real-time 1280 x 704 resolution editing at 24 end-to-end FPS on a single RTX 5090 GPU, with the DiT core running at 58 FPS. Experimental results demonstrate that our co-design approach significantly outperforms existing SOTA methods in both temporal coherence and system throughput.

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