FlashVSR is the first real-time diffusion-based video super-resolution (VSR) framework, delivering crisp, detailed, and lifelike 4K videos with unprecedented speed and stability.

Understanding Video Super-Resolution (VSR) and Key Challenges

Video Super-Resolution (VSR) is an AI technology that enhances low-resolution videos by reconstructing high-resolution frames with sharper details and smoother motion. It goes beyond basic upscaling by analyzing multiple frames to restore realistic textures and maintain visual consistency.

Despite progress, real-world VSR still faces core challenges:

• High Latency

Processing each video frame with complex neural networks causes noticeable delays. This latency makes it difficult to apply VSR in streaming or live scenarios where real-time output is essential.

• High Computational Cost

Most VSR models demand massive GPU resources, making real-time processing difficult, especially for 4K or long videos.

• Temporal Consistency

Maintaining smooth motion between frames is challenging. Many models struggle with flickering, ghosting, or inconsistent details.

• Generalization to Real-World Data

Models trained on limited or synthetic datasets often fail to perform well on real-world footage, resulting in artifacts or distorted textures.

What Makes FlashVSR Different?

FlashVSR delivers efficient, scalable, and real-time performance, achieving 17 FPS on 768×1408 videos using just a single A100 GPU.

Training-friendly three-stage distillation pipeline

Accelerates processing speed up to 12× faster than previous VSR, while maintaining high reconstruction accuracy and visual fidelity.

Tiny Conditional Decoder(TC Decoder)

Optimizes reconstruction and reduces decoding time to just 1/7 of previous methods without sacrificing quality

Locality-Constrained Sparse Attention

Efficiently allocates attention where it matters most, cutting computational overhead and improving scalability to longer video sequences.

Large-Scale Training Dataset

FlashVSR is trained on 120K videos (average length >350 frames) and 180K high-quality images, ensuring robust performance across diverse scenes, resolutions, and motion dynamics.

The Power of FlashVSR

FlashVSR sets a new standard for AI-powered video enhancement. Whether restoring old footage, enhancing AI-generated clips, or improving real-world long-form content, it delivers clearer details, smoother motion, and realistic textures all in real time.

Its efficiency and scalability make it ideal for a wide range of applications:

• AIGC Video Enhancement

Apply high-definition post-processing to AI-generated videos.

• Film Restoration and Archiving

Enhance the viewing experience of early classic footage.

• Real-Time Streaming Quality Boost

Maintain high visual quality even under poor network conditions.

FlashVSR doesn’t just upscale pixels, it restores emotion, texture, and visual depth. FlashVSR opens the door to a new era of real-time, high-fidelity video enhancement.

Explore FlashVSR more and bring your videos to life!