AI Tool Detector — Which Model Wrote This?

Check whether text was written by an AI tool with probability scores and sentence-level analysis. Free daily checks, no signup.

How it works

1. Paste text generated by an AI tool into the detector.

2. Get an overall pattern signal.

3. Review sentence-level flags to understand which parts show AI-like patterns.

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

Try it free

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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.

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