AI Detector — paste, scan, understand
An explainable, model-agnostic detector that works natively across six languages and keeps your text private.
Check a passage for AI writing
Paste between 200 and 2,000 words. The language is detected automatically.
No account required. Submitted text is not used to train models.
What it detects
Raw model output
Text generated directly by GPT-4o, Gemini, Claude, Copilot, Llama and Mistral.
Paraphrased AI
Content run through paraphrasers or “humanizers” to dodge detection.
Mixed documents
Sentence-level analysis surfaces AI passages inside human-written work.
Six languages
Native detection in English, Spanish, French, Italian, Portuguese and Romanian.
How it works
Paste or upload
Drop in text or a document. The language is detected automatically.
We analyze in-house
Detection runs on Google Cloud — your text never leaves our infrastructure.
Read the report
Get an overall score, confidence level, the likely model, and sentence-level highlights.
About the detector
What does the score mean?
The headline percentage estimates how likely the text is AI-generated. We pair it with a confidence level and sentence-level highlighting so you can see the evidence, not just a number.
Which file types can I check?
You can paste text directly or upload common document formats. Long documents are analyzed in full with per-section results.
How is this different from a plagiarism checker?
Plagiarism tools compare your text against existing sources. An AI detector estimates whether text was machine-generated — a different question.
Detect AI with confidence — in any of six languages
Tell us about your use case, volume, language, and privacy requirements.
Contact us