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THUDM CogVideoX

CogVideoX AI Video Detector & Checker

Verify video clips generated by CogVideoX-5B, CogVideoX-2B, and Zhipu AI models. Detect temporal coherence loss, boundary blurring, and generative motion glitches.

4.8(1.5k)RAM-only (zero storage)3 free daily checksNo sign-up

Speed Tip: Clips under 60 seconds analyze fastest (approx. 5–10s). Max video length: 5 minutes / 50 MB.

Try a 1-tap demo clip:
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Visual Forensics Guide

How to identify videos generated by CogVideoX

CogVideoX achieves impressive motion dynamics but exhibits identifiable causal VAE and prompt-adherence signatures:

01

3D Causal VAE Edge Ringing

Sharp edges of fast-moving objects exhibit faint ringing or compression halos caused by temporal latent downsampling.

02

Multi-Second Prompt Texture Melting

Towards the 4th to 6th second of generation, fine textures on clothing and backgrounds tend to soften or gradually morph.

03

Kinetic Momentum Discontinuities

Objects in motion (falling drops, running wheels, bouncing balls) occasionally change acceleration without physical contact.

04

Anatomical Joint Blurring

Rapid gestures of hands or feet show temporary blur or micro-fusion with adjacent background pixels.

How the verification engine works

1. Ingest Media
Upload a video clip, full-resolution photo, or paste any direct media link.
2. Multi-Layer Scan
Scans for frequency patterns, flow-matching artifacts, and generative diffusion noise.
3. Instant Verdict
Clear Real vs. AI verdict with confidence scores, detected generator model, and reverse matches.

Frequently Asked Questions

3 Answers
What is CogVideoX and who created it?
CogVideoX is an open-source text-to-video foundation model developed by Tsinghua University (THUDM) and Zhipu AI.
Can this detector catch CogVideoX clips shared on social media?
Yes. Even when re-encoded or compressed on TikTok, Instagram, or X, the underlying temporal motion vectors and causal VAE signatures remain detectable.
Is this CogVideoX detector free to use?
Yes. Sealed Rose provides free online forensic scanning with zero software installation or registration.
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