Paste any text and instantly see how likely it was written by ChatGPT, GPT-4, Claude or another AI. No word limit. No signup. Check as often as you like — then humanize it in one click.
This text shows strong AI-writing patterns. Detectors like GPTZero or Turnitin would likely flag it.
Free forever: unlimited checks, no login, no daily cap. If your text is flagged, the fix is one click away — humanize up to 1,500 words free.
Most free detectors cap you at 3 checks a day, demand signup, or hide the score behind a paywall. We don't.
No daily cap, no word limit, no account. Teachers checking twenty essays, writers checking every paragraph — go ahead.
Detection works anonymously. Your text is processed in real time, never stored, never sold, never used for training.
We show both AI and human scores, plus a plain-English verdict. No detector is 100% accurate — we say so openly and publish our benchmark.
Flagged as AI? Don't just stare at the red number. Humanize the text for free (1,500 words per run) and watch the score drop.
Honest answer: no AI detector is perfect. Here's how the popular tools compare on what matters most — false positives on real human writing.
| Detector | Free tier | Login required | False-positive risk |
|---|---|---|---|
| Better Humanizer | Unlimited | No | Low — dual score shown |
| GPTZero | Limited checks | Yes | Moderate on short texts |
| ZeroGPT | Free with caps | Sometimes | Higher on ESL writing |
| Originality.ai | Paid only | Yes | Low, but credits cost |
| Turnitin | School license | Yes | Documented false flags |
ESL writers take note: studies show non-native English writing gets falsely flagged more often. If you write in English as a second language, always check before you submit — and humanize the flagged parts.
Yes. The AI detector is 100% free, unlimited, and works without any login or signup. Paste text and get an AI score instantly.
No. Detection has no word limit and no daily cap. You can check as many texts as you want, as often as you want.
It detects text generated by ChatGPT, GPT-4, GPT-4o, Claude, Gemini, LLaMA, DeepSeek and other large language models by analyzing sentence-level patterns typical of AI writing.
No detector is perfect — including ours. We publish our benchmark openly and show both AI and human scores so you can judge for yourself. For best results, use the score as a signal, not a verdict.
Use our free AI humanizer. Paste the flagged text on the homepage, humanize it in one click, and watch the before/after AI score drop — free up to 1,500 words per run, no login.
Yes, teachers and editors can paste any passage to see its AI probability. We recommend treating the result as one signal among several, never as sole proof.
Free humanizer, 1,500 words per run, no login required.