AI Detector

Paste any text and get an AI-generation score plus the specific tells behind it — free, no signup. Built for writers who want to check their own drafts before sending.

0 / 750 words
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How the AI detector works

Paste up to 750 words and click Check for AI. An AI model reads the text for the stylistic fingerprints of AI-generated writing — uniform sentence rhythm, formulaic transitions, generic phrasing like "delve into" or "in today's fast-paced world", and an absence of the small inconsistencies human writing naturally has. You get a 0–100 score, a verdict, and up to five concrete signals it found in your text. Your text is processed and returned — never stored.

How to read the score

Why AI detectors are never 100% accurate

This tool — like every AI detector, including Turnitin, GPTZero, and Originality.ai — is a statistical estimate based on writing patterns, not a definitive test. Heavily edited AI text can score as human, and very formal, uniform human writing (careful non-native English, for example) can score as AI. Treat the score as a signal to investigate, not proof of anything. Never make an accusation or a grading decision based on a detector score alone.

If your text scores as AI-sounding — even if you wrote it

Non-native writers often trip AI detectors by accident: careful, formal, textbook-correct English shares a lot of surface features with AI output — uniform sentence length, no contractions, hedging phrases learned from grammar books. If that's you, running your draft through Limato's Humanize tone breaks up the rhythm and adds the natural variation and contractions that make writing read as unmistakably human — without changing what you're saying.

Write it right, not just count it

Limato's Chrome extension rewrites clunky non-native English into natural, native-sounding text on any website — Gmail, Slack, LinkedIn, Notion. 20 free rewrites a day.

Add to Chrome — Free

Frequently asked questions

How accurate is this AI detector?

No AI detector — this one included — is 100% accurate. It's a statistical estimate based on writing style, not a definitive test. Use the score as a signal, not proof, especially for anything with real consequences like grading or accusations.

Which AI models does it detect?

It looks for general AI-writing patterns common across ChatGPT, Claude, Gemini, and similar language models, rather than fingerprinting one specific tool. It works best on longer text (a few sentences or more).

Is my text stored?

No. Your text is sent to the detection API, analyzed, and returned in the response — it is not stored, logged, or used to train any model.

Why did my human-written text score as AI?

Very formal, uniform writing — common in careful non-native English or academic prose — can share surface patterns with AI text (consistent sentence length, no contractions, textbook phrasing). That's a false positive the detector can't fully rule out, which is exactly why no detector should be trusted as absolute proof.

How is this different from Turnitin or GPTZero?

Same idea — statistical AI-likelihood scoring — but this one is free, has no signup, and pairs directly with a Humanize rewrite tool so you can act on the result immediately.

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