What it’s for
- Recovering old recordings from a phone or compact camera.
- Bumping a clip exported at low quality (WhatsApp, social, screen recorder) up to publishing resolution.
- Pulling sharp stills for thumbnails or screenshots.
How it works
Upload the video
MP4 up to 20 seconds of source, up to 1080p input
resolution. If your video is longer, cut it first.
Pick the factor
2x (most cases) or 4x (when you start from low resolution
and want to land on 4K). Cost scales quadratically because 4x
renders ~4× the pixels of 2x.
Cost
| Duration × factor | Approx cost |
|---|---|
| 5 s at 2x | 30 cr |
| 10 s at 2x | 60 cr |
| 5 s at 4x | 120 cr |
| 10 s at 4x | 240 cr |
Best practices
- Start at 2x. If you still want more after seeing the result, run it again at 4x. You save credits on what was a test.
- Don’t mix upscale with aggressive compression. If your source is badly compressed, AI recovers what it can, but some detail is already lost.
- For long pieces, chunk first (10 s max per chunk) and rejoin in your editor.
Limits
- 20 seconds max of source per job.
- 1080p input max (4K input adds nothing and burns more compute).
- MP4 only.
Try it: zevor.ai/ai-video-upscaler.
For a single image, see Upscale image.
