Sightengine: what it is and who it suits
A factual overview of Sightengine, based on what the vendor says on its own site. Witness is a competing product, so we stick to what is stated and link every source.
Sightengine describes itself as built for teams that add automated AI-generated image, deepfake, video, voice and music detection, plus content moderation, to their products via API. Media covered: Image, Video, Audio.
Sightengine at a glance
| Sightengine | |
|---|---|
| Built for | Teams that add automated AI-generated image, deepfake, video, voice and music detection, plus content moderation, to their products via API. |
| Media covered | Image, Video, Audio |
| Free option | yes: Free Tier, 2,000 operations per month (max 500/day), includes basic content moderation and AI detection; AI Image Detection included, AI Video Detection not included on Free. |
| Pricing | Free $0; Starter $29/mo; Pro $99/mo; Enterprise Custom |
| API | yes |
| Browser extension | Not stated on their page |
Read from the vendor's own pages on 2026-11-13.
What to check about Sightengine
Test it on your own images
Vendor accuracy claims use their own test sets. Run the images you care about and compare.
Check the current pricing
Plans change. Confirm on the vendor's pricing page before you commit.
Read how it explains results
Look for a confidence level, a heatmap or reasons, not only a label.
A note on detectors
- Witness reports a likelihood with a confidence score. It does not prove anything on its own.
- No detector catches every image. New generators can be missed until detection catches up, and heavy compression or screenshots can lower confidence.
- A real photo can be flagged and an AI image can pass. Treat a result as one input, alongside the source, context and other checks.
Frequently asked questions
What is Sightengine?
Sightengine describes itself as built for teams that add automated AI-generated image, deepfake, video, voice and music detection, plus content moderation, to their products via API.
Is Sightengine free?
yes: Free Tier, 2,000 operations per month (max 500/day), includes basic content moderation and AI detection; AI Image Detection included, AI Video Detection not included on Free.
How does Witness compare with Sightengine?
See the side-by-side comparison. In short, Witness focuses on quick, plain-language checks of images and video in the browser or by API.
Sources
- sightengine.com/detect-ai-generated-images read 2026-11-13
- sightengine.com/pricing read 2026-11-13
Competitor details come from each vendor's own public pages on the dates shown. Products change, so check the vendor's site before you decide.
Related
Don't guess. Witness it.
Free to try. No account needed for your first scans. Witness gives a likelihood with a confidence percentage, not a certainty.