What AI Killer does
AI Killer estimates how likely a piece of text was generated by AI such as ChatGPT, Claude, or Gemini. Paste any text and you get an overall AI score from 0 to 100, plus sentence-level highlighting that shows which passages carry the strongest AI signals. It's free and requires no account.
Why we built it
AI writing tools are everywhere, and students, writers, and educators increasingly need a quick way to sanity-check a piece of text. Most detectors are paywalled, cluttered, or wildly overconfident. We wanted something clean, instant, and — above all — honest about its own limitations.
Our honesty policy
No AI detector is 100% accurate, and we will never pretend otherwise. Detectors can flag human writing as AI (false positives) and miss AI text (false negatives), especially on short passages, formal writing, and non-native English. That's why every result is shown as a probability, not a verdict, and why we repeat the same caution everywhere: a score should never be the sole basis for an accusation of cheating or academic misconduct.
Privacy first
We don't require sign-ups, and we don't store the text you submit beyond what is needed to produce your result. See our Privacy Policy for details.
Learn more
New to AI detection? Start with how AI detectors work or why detectors flag human writing. Questions? Get in touch.