What does the output look like?
Original, creative, and precise side by side
Black Forest Labs shows one source clip beside its creative and precise 4K upscales. Creative mode invents sharper texture in the beard, skin, and rain-streaked window; precise mode sharpens while staying closer to the source.
Black Forest Labs developer comparison: FLUX Video Upscale: 2K and 4KWhat can FLUX Video Upscale do?
Upscale clips up to 20 seconds by 1.5x to 3x, faithfully or with restored detail
- Sharpening faces, products, and brand assets in precise mode
- Restoring texture, crowds, and scenery in generated footage
- Enlarging short clips by up to three times, to as much as 4K
- Inputs
- Video
- Durations
- Determined by source media
- Aspect ratios
- See model settings
- Output options
- 1080p, 2K, 4K
- Typical generation time
- About 10 minutes
- Sources must be MP4 files up to 50 MB and 2560x1440; clips longer than 20 seconds are trimmed to their first 20.
- Creative mode can change faces and products; use precise mode when identity matters.
How much does FLUX Video Upscale cost?
Base estimate
$0.084–$0.33 USD / second
0.84–3.3 credits / second
Estimated dollar cost uses the Solo monthly plan at $0.10 USD per credit. Your cost per credit depends on your plan.
The billable duration depends on your source media. Multiply the per-second rate by the billable seconds to estimate the output cost. Check the total shown in Starpop before generating.
How to use FLUX Video Upscale
- Click “Create with FLUX Video Upscale” and sign in or create an account. After setup, Starpop opens a new video workspace tab with the model selected.
- Upload an MP4 of up to 20 seconds and 2560×1440, or choose one from your gallery.
- Choose the upscale factor and mode: Precise for faces, products, and real people, or Creative for generated footage and scenery. Add an optional detail prompt to steer what Creative restores.
- Review the credit estimate and upscale. Check the result in your workspace, then download it or adjust your inputs to try again.