AI or Authentic? checks whether an image or video is AI-generated - for free, in your browser, no account needed. Paste a link, use an iOS shortcut / Android Web-App or upload a file: the forensic pipeline extracts keyframes, reads C2PA content credentials, runs deepfake and face-manipulation detection, and combines several detectors into one clear result. When the evidence is too thin, it honestly says "not decidable" instead of guessing. Every check ends with a plain-language report and a shareable certificate you can send to anyone who doubts the result.