AI Detection

How AI detectors like Turnitin, GPTZero and Copyleaks actually work, how accurate they are, and how to read their scores.

Two stacks of paper on a desk, one plain and one highlighted in blue, next to a laptop and a magnifying glass

AI DetectionOctober 17, 202612 min read

Can Turnitin Detect QuillBot and Other Paraphrasing Tools?

Often yes. Turnitin now flags AI text run through QuillBot or a humanizer, and paraphrased sources still get caught. What it checks, what it misses, what to do.

A magnifying glass held over a printed page with some sentences highlighted, beside a laptop on a wooden desk

AI DetectionOctober 10, 202612 min read

How AI Detectors Work: Perplexity, Burstiness, and Why They Fail

Plain-English explanation of how AI detectors score text (perplexity, burstiness, trained classifiers, watermarks), why they misfire, and how to read a score.

A laptop showing a document with some paragraphs highlighted in blue, beside a printed essay and a pen on a desk

AI DetectionSeptember 5, 202613 min read

Turnitin AI Detector Accuracy in 2026: Scores and False Positives

What Turnitin's AI score actually measures, what its under-1% false positive claim covers, what independent tests found, and what to do at each score range.