AI detection guides
How Do AI Detectors Work? A Plain-English Guide
AI detectors measure how predictable your words are and turn that into a probability. Here's how that works, step by step, and where it breaks down.
Author
WrittenCheck Team
Editorial team
The WrittenCheck Team builds and runs WrittenCheck, a free AI detector that works in 16 languages. We write practical guides on how AI detection works, where it goes wrong, and how teachers, students and writers can read a detector score fairly. Every guide is based on how our own detector works, and we explain what a score can and cannot tell you.
- AI detection
- AI writing
- Academic integrity
- Teaching with AI
- Student writing
- Writing tips
- 13articles
- 31,471words published
- 3topics
- Oct 2026writing since
