An AI text detector is software that analyzes written material and determines how likely it is that the text was created by artificial intelligence rather than written by a human. It works by identifying statistical indicators such as low perplexity, high predictability, and consistent sentence structure, which are common characteristics of AI-generated text.
Teachers use AI text detectors to assess student assignments, publishers use them to evaluate submitted manuscripts, and writers use them to review their work before publishing. The results should be treated as a probability signal rather than definitive proof.
For a comprehensive review of how these tools perform, read our post on the best AI detector tools for content. Try Quetext's AI Detector for free—no signup required.