Reality Defender: what it is and who it suits
A factual overview of Reality Defender, 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.
Reality Defender describes itself as built for organizations that detect deepfakes in audio, video and images, identify AI callers, and add detection to live calls, meetings and applications. Media covered: Image, Video, Audio.
Reality Defender at a glance
| Reality Defender | |
|---|---|
| Built for | Organizations that detect deepfakes in audio, video and images, identify AI callers, and add detection to live calls, meetings and applications (contact center fraud, hiring, identity, media verification). |
| Media covered | Image, Video, Audio |
| Free option | yes: RealAPI Free plan, $0/month, 50 image scans per month, up to 3 seats; audio and video are on paid plans (audio trial via sales). |
| Pricing | RealAPI Free $0/month; RealAPI Business $399 (labelled 'Annual Billing'); RealAPI Enterprise Custom pricing |
| API | yes |
| Browser extension | Not stated on their page |
Read from the vendor's own pages on 2026-11-13.
What to check about Reality Defender
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 Reality Defender?
Reality Defender describes itself as built for organizations that detect deepfakes in audio, video and images, identify AI callers, and add detection to live calls, meetings and applications.
Is Reality Defender free?
yes: RealAPI Free plan, $0/month, 50 image scans per month, up to 3 seats; audio and video are on paid plans (audio trial via sales).
How does Witness compare with Reality Defender?
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
- realitydefender.com/ read 2026-11-13
- realitydefender.com/pricing read 2026-11-13
- realitydefender.com/product/realapi 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.