About EssayPrecheck

EssayPrecheck is a free tool for checking how AI-like a piece of writing reads before you submit it.

Independent

EssayPrecheck is an independent tool. It is not Turnitin, it is not connected to Turnitin, and it cannot show or predict your Turnitin score. Turnitin is a trademark of Turnitin, LLC. It is mentioned on this site only to describe that product and how this tool differs from it.

The detector

Scores come from an open model, desklib/ai-text-detector-v1.01, published under the MIT licence and based on DeBERTa-v3-large. We run it on our own server. The text is split into passages, each passage is scored, and the overall score is a length-weighted result for the whole text.

Limits

The model is English-only. It is unreliable on short texts, and it can score human writing too high, particularly writing in a second language. It often misses AI text that has been edited or paraphrased. A score is an estimate about style and should never be the only basis for a decision about a person.

Contact

Corrections and questions: hello@essayprecheck.com.