Verify the authorship of any writing

Preserve human authenticity with detecting AI-generated sources, plagiarism, and evaluating real writing effort.

The Solution for Authorship

Built-in AI detection and authenticity support

GPTZero’s authorship tools are available in both Google Docs and our new AI editor to give you verifiable evidence of a document’s writing history.

A Comprehensive, Shareable Document Report

Get statistics detailing the lifespan of a document, including a writing activity timeline, largest copy and pastes, and average revision duration. In addition, it tracks and accounts for instances where multiple users edit a single document.

Privacy-Preserving Writing Video Playback

Watch editing footage of the document being written from start to finish. See evidence of collaborators and major edits to the document that feels like watching the writer write.

Custom AI Tutor feedback for your classroom

Choose from 4 different levels of AI assistance to help your students learn. Get the basics of grammar and spell check, or add feedback for style, voice, and structure.

Upload a rubric and tailor the AI writing tutor’s feedback to your course’s educational plans to help your students improve their revisions.

Integrate with Chrome and Google Docs:

AI Detector and Authorship Verification

Download Chrome Extension

Get the most precise, reliable AI detector for educators

GPTZero’s authorship tools offer more than just an AI checker. We’re built with educators in mind, with the support of the American Federation of Teachers (AFT).

Low false positive rate: We ensure no student’s academic integrity is falsely at risk, while maintaining 99%+ accuracy when detecting AI.

Responsible AI adoption: Use writing feedback tools that preserve critical thinking and support responsible AI use.

Debiased for ESL learners: We train our models to account for writing from a wide range of students.

AI Text Detection and Analysis Trusted by Leading Organizations

FAQs about our LMS Integrations

Everything you need to know about GPTZero and our chat gpt detector. Can’t find an answer? You can talk to our customer service team.

What is GPTZero?

GPTZero is the leading AI detector for checking whether a document was written by a large language model such as ChatGPT. GPTZero detects AI on sentence, paragraph, and document level. Our model was trained on a large, diverse corpus of human-written and AI-generated text, with a focus on English prose. To date, GPTZero has served over 2.5 million users around the world, and works with over 100 organizations in education, hiring, publishing, legal, and more.

How do I use GPTZero?

Simply paste in the text you want to check, or upload your file, and we'll return an overall detection for your document, as well as sentence-by-sentence highlighting of sentences where we've detected AI. Unlike other detectors, we help you interpret the results with a description of the result, instead of just returning a number.

To get the power of our AI detector for larger texts, or a batch of files, sign up for a free account on our Dashboard.

If you want to run the AI detector as your browse, you can download our Chrome Extension, Origin, which allows you to scan the entire page in one click.

When should I use GPTZero?

Our users have seen the use of AI-generated text proliferate into education, certification, hiring and recruitment, social writing platforms, disinformation, and beyond. We've created GPTZero as a tool to highlight the possible use of AI in writing text. In particular, we focus on classifying AI use in prose.

Overall, our classifier is intended to be used to flag situations in which a conversation can be started (for example, between educators and students) to drive further inquiry and spread awareness of the risks of using AI in written work.

Does GPTZero only detect ChatGPT outputs?

No, GPTZero works robustly across a range of AI language models, including but not limited to ChatGPT, GPT-4, GPT-3, GPT-2, LLaMA, and AI services based on those models.

Why GPTZero over other detection models?

GPTZero is the most accurate AI detector across use-cases, verified by multiple independent sources, including TechCrunch, which called us the best and most reliable AI detector after testing seven others.
GPTZero builds and constantly improves our own technology. In our competitor analysis, we found that not only does GPTZero perform better, some competitor services are actually just forwarding the outputs of free, open-source models without additional training.
In contrast to many other models, GPTZero is finetuned for student writing and academic prose. By doing so, we've seen large improvements in accuracies for this use-case.

Lastly, many of our users - especially educators - have told us they trust GPTZero because we have only one mission: provide every human with the tools to detect and safely adopt AI technologies. Unlike many providers who recently released detectors as a side product, this mission will always be our number one priority.