An AI checker like Copyleaks is built to scan text for plagiarism and AI-generated writing. That is a real job, but it is not the same job as finding YouTube creators who copied your video, reuploaded your work, or re-voiced your script. If you searched for an AI checker because someone is ripping off your YouTube content, you probably need a tool aimed at video, not text.
What Copyleaks-style AI checkers actually do
Tools in the Copyleaks category compare pasted text against the web and known AI-writing patterns. They are useful for editors, teachers, and publishers checking articles or essays. They do not crawl YouTube for similar uploads, compare narration patterns, or rank candidate copycat videos by similarity score.
Why YouTube creators need a different kind of similarity detection
A reuploaded or re-edited YouTube video usually keeps the same script, structure, and audience hook — even if the title, thumbnail, or voiceover changes. Detecting that requires comparing video metadata, transcripts, narration style, and thumbnails across YouTube, not running a text-only plagiarism checker.
When to use which tool
Use an AI text checker if you publish written articles and want to verify originality. Use a YouTube-focused similarity tool if you publish video content and want to find likely copies on YouTube. They solve different problems and the right choice depends on whether your work lives on a page or on YouTube.
GuardMyVideos focuses only on YouTube video copy detection — AI-assisted analysis, not legal advice. If you upload original videos, you can run trial scans free to see what a YouTube-specific scan turns up.