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GPTZero (New York, US)

GPTZero

AI detector for submitted work, with per-sentence highlighting, a plagiarism check and verification of the writing process.

Go to the website GPTZero alternatives
Shared spot21of 29 professional tools with a GDPR profileOur summary of what the provider itself publishes about your data: whether the data is held in the EU (2 points), whether there is a certification or GDPR guarantee (1) and whether the provider is based in the NL or the EU (1). 3 or 4 points is Strong, 2 Good, 1 Limited, 0 Unknown. How we measure in education
GDPR: Unknown
  • Provider based outside the EU

Each block is a professional tool in education, with the strongest GDPR profile on the left. 9 professional tools, like GPTZero, have an Unknown profile: they share this spot. Click through for that tool.

Pricefreemiumfreemium; free up to 10,000 characters
Free trialYes
BasedNew York, USAOutside the EU
ModelNot publicproprietary detection models, detects output from ChatGPT, Claude, Gemini and Llama, among others

Last checked: 11 August 2026 · How we check

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What it does

Detect AI-written text (ChatGPT, Claude, Gemini)
Highlight sentences that appear AI-generated
Detect plagiarism in documents
Provide grammar and writing feedback
Spot fake citations and hallucinations
Analyse mixed human/AI text
Prove writing authenticity through replay
Canvas LMS integration for AI detection

Comparable in education

LessonUp (Maia AI)Start from €8 per monthTalkpalfreemiumfobizzfree basic licenceSchoolgenfree (daily limit)Snappeton requestTOPdeskEssential €61, Engaged €86, Excel…
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GPTZero compared

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Underlying model

proprietary detection models, detects output from, among others, ChatGPT, Claude, Gemini and Llama. Many tools build on a large model from a provider such as OpenAI or Anthropic. If in doubt, ask for the data processing agreement: it sets out where your data goes.

GDPR check for education

Questions about GPTZero

AI for education
Which AI model does GPTZero use?
The maker of GPTZero does not disclose which AI model is underneath. Proprietary detection models that detect output from e.g. ChatGPT, Claude, Gemini and Llama.
How much does GPTZero cost?
freemium; free up to 10,000 characters. Check the current price on the provider's website; prices change often.
Who is GPTZero for?
GPTZero focuses on education. It suits tasks such as creating teaching materials and assignments, giving feedback on work, and differentiating explanations by level.
What should I look out for with AI in education?
Mind pupil privacy and fair assessment. AI detection is unreliable; make clear agreements about permitted use.
Next stepAll 41 options for educationProfessional tools and general assistants side by side, on GDPR profile, price and quality.

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