Which AI detectors do universities use?

The most widely deployed AI detectors in academic settings are Turnitin, GPTZero, Copyleaks, and Originality.ai. Knowing which tool your institution uses helps you target your humanization strategy.

How Turnitin's AI detector works

Turnitin's AI detection layer analyzes text for low perplexity and uniform sentence structure. It gives an overall AI percentage for the submission. Scores above 20% typically trigger a review.

How GPTZero works

GPTZero scores text on two metrics: perplexity and burstiness. A low perplexity plus low burstiness combination is a strong AI signal. GPTZero also highlights individual sentences it considers AI-generated.

How to check your own work before submission

Use Text Humanica's detector to run your text before submitting. It uses the same linguistic signals as GPTZero and Turnitin. If your score is above 30%, use the humanizer to bring it down.

Ethical use of AI humanizers in academic work

Using AI to generate content and submitting it as your own is academic dishonesty. The ethical use of a humanizer is to improve AI-assisted drafts that you have reviewed and made your own. Always follow your institution's AI policy.