Guides to AI checks, written plainly.
How to read an AI result, what to do if your writing is flagged, how other AI detectors compare, and what our own numbers say.
How to check a PDF for AI
Upload a PDF, check that its text was read correctly, and understand what the AI result can tell you.
Why is my writing flagged as AI?
An AI flag is a prediction, not proof. Here is how to read the result and decide what to do next with your own writing.
How to Prove You Didn't Use AI: What Google Docs Version History Actually Proves (and What It Doesn't)
Flagged as AI? Version history screenshots are weaker evidence than the tutorials imply. What the detectors’ own numbers say, where the manual methods break, and what a signed writing record can — and cannot — show.
Copyleaks AI Detector Review: Claims, Evidence, and Where Know Nota Differs
Copyleaks markets 99% accuracy. The research says detectors as a class are neither accurate nor reliable on edited text. Here is what the numbers say, what Nota prints about itself, and which tool fits which job.
Grammarly AI Checker Review: An Accuracy Test vs Know Nota
Grammarly's AI checker is the one most people meet first, because it already sits in a tool they use every day. Convenient and reliable are different things. Here is how it works, where it breaks, and what Know Nota does differently.
Follow along: RSS.