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FlashVSR

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FlashVSR is an online AI video super-resolution tool. Upload an MP4 and upscale to 720p, 1080p, 2K, or 4K with a diffusion model that rebuilds texture, reduces compression artifacts, and keeps motion temporally consistent.

Added on November 11, 2026

FlashVSR screenshot

Product Information

What is FlashVSR?

FlashVSR is a cloud video enhancer based on OpenImagingLab's FlashVSR diffusion research from Tsinghua University and Shanghai AI Lab. You upload an existing MP4, pick a target resolution of 720p, 1080p, 2K, or 4K, and get an enhanced MP4 back without setting up a local GPU. The model is designed to rebuild texture, reduce compression artifacts, and keep motion consistent across frames through a locality-constrained sparse attention engine, rather than simply stretching each frame. The site positions it for restoring compressed or low-resolution footage and for making AI-generated clips look more cinematic. New users receive 8 free credits after signing up, and Max subscribers can email support to request API access.

How to use FlashVSR?

  1. 1. Open flashvsr.com and start upscaling; new users get 8 free credits after signing up
  2. 2. Upload an MP4 you want to restore or enlarge
  3. 3. Choose a target resolution: 720p, 1080p, 2K, or 4K
  4. 4. Run the job in the cloud and compare the original with the enhanced result in the history panel
  5. 5. Download the enhanced MP4, or contact support for API access if you are on the Max plan

Core Features

  • • Diffusion-based reconstruction — Rebuilds texture and fine detail that simple upscalers often miss
  • • Artifact reduction — Aims to remove compression damage and limit ringing or aliasing
  • • Temporal consistency — Locality-constrained attention is used to reduce flicker and ghosting between frames
  • • Selectable output — 720p, 1080p, 2K, or 4K, with MP4 in and MP4 out
  • • Cloud processing — Runs in the browser-facing service, so you do not need a local GPU
  • • Free trial credits — New accounts receive 8 credits after sign-up
  • • API for Max subscribers — API access can be requested by email after the plan is verified

Use Cases

  • • Restoring old or heavily compressed video to a cleaner high-resolution file
  • • Upscaling short clips to 2K or 4K before publishing or archiving
  • • Improving AI-generated video so motion and texture look more natural
  • • Creators who want a cloud upscaler instead of running a GPU workflow locally
  • • Teams that need API access for repeat video enhancement once on the Max plan

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