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
1
Upload the video
MP4 up to 20 seconds of source, up to 1080p input
resolution. If your video is longer, cut it first.
2
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.
3
Generate and download
The job runs async: leave it queued, we ping you when it’s done.
Download MP4 ready to publish.
Cost
The factor drives the bill: 4x costs 4× a 2x job at the same duration.
If you only need the clip to look good on TikTok or Reels, 2x is
usually enough.
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.