AI Detection Accuracy — How Good Are Detectors?

See how AI detectors estimate whether writing was generated by a language model, and review evidence at the sentence level instead of relying on one score.

How it works

1. Paste the writing you want to evaluate.

2. Get an overall AI probability estimate.

3. Review sentence-level probabilities for context and potential false positives.

4. Free daily checks; paid access will open after automatic account delivery is ready.

Check accuracy for yourself

About this review

EssayDetector reviews language patterns with a hosted model and a transparent deterministic fallback, always labeling which method ran. Results are probabilistic review cues, never proof of authorship, and submitted text is never stored. Maintained by the EssayDetector team; page last updated 2026-08-12.