Uncensored Video Upscaling with FlashVSR

Your video is finished. Now you want a higher-resolution version for your library, storefront, or application. FlashVSR Spicy, model ID modelrush/flashvsr, takes your existing video and upscales it to 720P, 1080P, 2K, or 4K.

That makes it a practical fit for independent creators, adult studios, and app developers. You can refresh an older library, prepare a higher-resolution version for a new storefront, or add an upscaling step to your own product. ModelRush gives adult creators an uncensored video-upscaling workflow, with browser and API access.

Open the model page and choose the Playground. Upload a video or paste a supported video URL. Source clips can run from 1 to 60 seconds. Pick your target resolution, set the duration, and check the estimate before you run. Browser runs use prepaid credits on your ModelRush account, so you sign in, add the credits you need, and start. You do not need an API key in the browser.

Developers can use the API for the same video workflow. Each request is asynchronous and returns a generation ID. You can poll for the result or receive it by webhook, whichever suits your pipeline. The model page lets you choose between the Playground and the API, so you can test a clip by hand before you automate it.

You pay for each second of input video. Prices below were checked on October 13, 2026.

At these rates, a 30-second clip has an estimated usage cost of 0.72 USD at 1080P or 1.59 USD at 4K. The Playground shows an estimate for your exact run before you start.