Here are the most common red flags that suggest a video may have been generated or heavily manipulated by AI.

Visual red flags

  • Unnatural or stiff facial movements, especially around the eyes and mouth, as if the face is “floating” on the head.
  • Eyes that don’t quite focus on anything, hold eye contact too perfectly, or blink too rarely or in a strange pattern.
  • Lips that are slightly out of sync with the spoken words (audio seems just a fraction ahead or behind the mouth).
  • Repetitive or robotic hand gestures that loop in the same way throughout the clip.
  • Weird lighting or shadows on the face or body that don’t match the background or light sources.
  • Distorted details when you pause or zoom in: warped hands, jewelry, ears, teeth, or hair that looks “melted” or smudged.
  • Background objects that subtly morph, blur, or “breathe” (signs, text, furniture, crowds) instead of staying stable.

Audio and voice red flags

  • Voice that sounds too smooth or flat, with little natural emotion, breathing, or emphasis.
  • Audio that feels like it is “hovering” over the scene, with room sounds or background noise not changing when the camera moves.
  • Sudden cuts in tone or pacing mid‑sentence, as if stitched together from multiple takes.

Context and “too perfect” red flags

  • The speaker or setting looks flawless and studio‑quality, but the message is low‑effort, spammy, or scam‑like (e.g., miracle investments, fake giveaways).
  • A “real” person appears in many different ads or languages saying almost identical scripts for different products or causes.
  • The clip appears on suspicious accounts with no history, no credible links, or no verifiable source, yet makes big claims (politics, emergencies, celebrity scandals).

What are not reliable red flags anymore?

  • Fancy color grading, cinematic blur, or overall high quality alone are not enough to say it is AI, since phones and editors can easily do this.
  • Relying only on automated “AI detectors” for video is risky; they still guess a lot and can be wrong.

TL;DR

Red flags that strongly suggest an AI‑generated video include unnatural facial and eye movements, off lip‑sync, repetitive gestures, inconsistent lighting and backgrounds, flat or floating audio, and suspiciously perfect visuals paired with sketchy context.

Information gathered from public forums or data available on the internet and portrayed here.