---
title: "FlashVSR API & Playground - Comfy"
description: "FlashVSR by WaveSpeed: Upscales a low-resolution or blurry video up to 4K. Run it in your browser or call it via API."
canonical: https://comfy.org/hub/models/flashvsr/
lang: en
index: https://comfy.org/llms.txt
---

[Back to all models](https://comfy.org/hub/models/)

WaveSpeed

[Edit videos](https://comfy.org/hub/models/?useCase=edit-videos)

# FlashVSR

Upscales a low-resolution or blurry video up to 4K.

Cost depends on your settings.

- [video](https://comfy.org/hub/models/?q=video)
- [upscale](https://comfy.org/hub/models/?q=upscale)
- [video-upscale](https://comfy.org/hub/models/?q=video-upscale)

[Read docs](https://docs.comfy.org/development/comfy-router/models#wavespeed)

Input

Video to upscale

Provide the video as a URL or base64-encoded data.

-

Duration

Set the duration to upscale, in seconds.

Resolution

Output

![FlashVSR: WaveSpeed FlashVSR](https://raw.githubusercontent.com/Comfy-Org/workflow_templates/main/templates/api_wavespeed_flshvsr_video_upscale-2.webp)

Example

## Try an example

-

## More models

[Browse all Browse all models](https://comfy.org/hub/models/)

- [WaveSpeed

  ### SeedVR2 Image Upscaler

  Image to Image

  wavespeed seedvr2 image upscale image-upscale](https://comfy.org/hub/models/seedvr2-image-upscaler/)
- [WaveSpeed

  ### Ultimate Image Upscaler

  Image to Image

  wavespeed ultimate image upscale image-upscale](https://comfy.org/hub/models/ultimate-image-upscaler/)
- [Black Forest Labs

  ### FLUX Video Upscale

  Video to Video

  bfl flux video upscale super-resolution video-to-video](https://comfy.org/hub/models/flux-video-upscale/)
- [ByteDance

  ### Seedance 2.0 Fast

  Text to Video

  byteplus seedance seedance-2 video text-to-video](https://comfy.org/hub/models/seedance-2-0-fast-text-to-video/)