Paste English text → see if it reads like typical AI writing. No signup.
This is a heuristic feature-scanner (reference-grade), NOT GPTZero / Originality.ai / ZeroGPT. It flags typical AI patterns (filler phrases like “delve/tapestry/game-changer”, uniform paragraph length, low sentence-length variance). Known blind spot: “cleaned” AI text is only partially flagged (20% on our adversarial set). Validated on 191 real human samples across 9 sources (books, Wikipedia, Hacker News, Stack Exchange, news): 0 false positives. Use as a first-pass signal only — not proof of authorship.