Deepfake

A deepfake is synthetic or manipulated media — most often video or audio — that depicts a real person saying or doing something they didn't. The term originally meant face-swaps but now covers fully generated video (Sora, Veo), voice cloning, and lip-sync manipulation.

Deepfakes are the highest-scrutiny category in AI detection because of their potential for harm: fraud, non-consensual imagery, and disinformation. Platforms, newsrooms, and verification services treat depictions of real people far more strictly than generic AI art, and many jurisdictions now regulate them directly.

Detection focuses on telltales that survive re-encoding: temporal inconsistencies between frames, unnatural blink and micro-expression patterns, frequency-domain signatures from the generator, and audio-visual desync. Because video is re-encoded so heavily in distribution, robust detectors target signals that persist through compression.

SynthGuard is built for legitimate humanization of synthetic media a creator made themselves — not for impersonating real people. It does not provide face-swapping or identity-impersonation features, and using any tool to create deceptive deepfakes of real individuals is harmful and, in many places, illegal. The video humanizer is intended for creators humanizing their own AI-generated or AI-assisted content within platform rules.