GPTZero chrome extension preview

GPTZero for ChromeA Chrome Extension for writing feedback, AI scan, and citation checks

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Improved super-powered AI tools to support better writing.

Get Instant feedback

Generate AI writing feedback directly into Google Doc comments. Customize feedback by adding a rubric or tailoring your prompt.

Scan any webpage

Instantly detect and find the source of AI-generated content in any text as you browse the internet.

Watch writing replay

Opt for video replay and human writing verification to prove your authentic voice. See a play-by-play edit history of a document.

Deeper writing insights

Understand your writing patterns through live AI scan results and typing pattern analysis as you write.

Works where you write.

Access GPTZero tools on any webpage or on Google Docs.

GPTZero chrome extension preview

GPTZero Writing Report for Google Docs

NEW

AI detection and authenticity support all in one comprehensive report for Google Docs. Preserve human authenticity with detecting AI-generated sources, plagiarism, and evaluating real writing effort.

GPTZero Writing Report for Google Docs preview

Advanced Writing Insights

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.

The new GPTZero Typing Analysis provides valuable insight into how natural/unnatural the typing pattern history of the document is based on the number of copies, edits, and rate of progress.

Privacy-Preserving Writing Replay Video

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.

Key features
  • Jump to areas of the video that have more pastes.
  • Navigate between edits using the arrow buttons.
  • Export the writing report as a PDF to easily share with others.
GPTZero Writing Report for Google Docs preview

Writing Feedback for Google Docs

NEW

Save time giving writing feedback by generating AI writing feedback directly into Google Docs comments. Fully customize feedback with the option to include an assignment and rubric.

Writing Feedback for Google Docs preview

Customize Feedback

Specify what kind of feedback you want in the prompt box or choose from a couple smart prompt suggestions. Upload rubric and assignment files for more fine-tuned feedback.

Go through the generated Google Docs comments and edit them as you please before finalizing or rejecting the comments.

Built for the betterment of Education.

GPTZero for Chrome was built with education in mind, to encourage students to build better writing skills and support teachers with tools for their classroom, with the support of the American Federation of Teachers (AFT).

  • check iconLow false positive rate: We ensure no student’s academic integrity is falsely at risk, while maintaining 99%+ accuracy when detecting AI.
  • check iconResponsible AI adoption: Use writing feedback tools that preserve critical thinking and support responsible AI use.
  • check iconDebiased for ESL learners: We train our models to account for writing from a wide range of students.
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Download now and unlock powerful AI tools wherever you write.

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AI Text Detection and Analysis Trusted by Leading Organizations

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FAQs about GPTZero

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 $10 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.

What are the limitations of AI Detection?

The nature of AI-generated content is changing constantly. As such, these results should not be used to punish students. We recommend educators to use our behind-the-scene Writing Reports as part of a holistic assessment of student work. There always exist edge cases with both instances where AI is classified as human, and human is classified as AI. Instead, we recommend educators take approaches that give students the opportunity to demonstrate their understanding in a controlled environment and craft assignments that cannot be solved with AI.

The accuracy of our model increases as more text is submitted to the model. As such, the accuracy of the model on the document-level classification will be greater than the accuracy on the paragraph-level, which is greater than the accuracy on the sentence level.

The accuracy of our model also increases for text similar in nature to our dataset. While we train on a highly diverse set of human and AI-generated text, the majority of our dataset is in English prose, written by adults.

Our classifier is not trained to identify AI-generated text after it has been heavily modified after generation (although we estimate this is a minority of the uses for AI-generation at the moment).

Currently, our classifier can sometimes flag other machine-generated or highly procedural text as AI-generated, and as such, should be used on more descriptive portions of text.

What can I do as an educator to reduce the risk of AI misuse?

We believe that the best outcome for educators and students arrives by working together proactively to understand the problem of AI misuse and find strategies that hone in on the human value of education. For example, educators can:
  1. Help students understand the risks of using AI in their work (to learn more, see this article), and value of learning to express themselves. For example, in real-life, real-time collaboration, pitching, and debate, how does your class improve their ability to communicate when AI is not available?
  2. Create an assessment that cannot be answered by Chat GPT or other AI. For example:
    • Ask students to write about personal experiences and how they relate to the text, or reflect on their learning experience in your class.
    • Ask students to critique the default answer given by Chat GPT to your question.
    • Require that students cite real, primary sources of information to back up their specific claims, or ask them to write about recent events.
    • Assess students based on a live discussion with their peers, and use peer assessment tools (such as the one provided by our partner, Peerceptiv).
    • Ask students to complete their assignments in class or in an interactive way, and shift lectures to be take-home.
  3. Ask students to produce multiple drafts of their work that they can revise as peers or through the educator, to help students understand that assignments are meant to teach a learning process.
  4. Ask students to produce work in a medium that is difficult to generate, such as powerpoint presentations, visual displays, videos, or audio recordings.
  5. Set expectations for your students that you will be checking the work through an AI detector like GPTZero, to deter misuse of AI.

I'm an educator who has found AI-generated text by my students. What do I do?

Firstly, at GPTZero, we don't believe that any AI detector is perfect. There always exist edge cases with both instances where AI is classified as human, and human is classified as AI. Nonetheless, we recommend that educators can do the following when they get a positive detection:

  1. Ask students to demonstrate their understanding in a controlled environment, whether that is through an in-person assessment, or through an editor that can track their edit history (for instance, using our Writing Reports through Google Docs). Check out our list of several recommendations on types of assignments that are difficult to solve with AI.
  2. Ask the student if they can produce artifacts of their writing process, whether it is drafts, revision histories, or brainstorming notes. For example, if the editor they used to write the text has an edit history (such as Google Docs), and it was typed out with several edits over a reasonable period of time, it is likely the student work is authentic. You can use GPTZero's Writing Reports to replay the student's writing process, and view signals that indicate the authenticity of the work.
  3. See if there is a history of AI-generated text in the student's work. We recommend looking for a long-term pattern of AI use, as opposed to a single instance, in order to determine whether the student is using AI.

How do I share an AI scan report with my student?

You can use our sharing feature to share a link directly with a student, or you can download a PDF report that you can email or print to share with the student.

What data did you train your model on?

Our model is trained on millions of documents spanning various domains of writing including creating writing, scientific writing, blogs, news articles, and more. We test our models on a never-before-seen set of human and AI articles from a section of our large-scale dataset, in addition to a smaller set of challenging articles that are outside its training distribution.

How do I use and interpret the results from your API?

To see the full schema and try examples yourself, check out our API documentation.

Our API returns a document_classification field which indicates the most likely classification of the document. The possible values are HUMAN_ONLY, MIXED, and AI_ONLY. We also provide a probability for each classification, which is returned in the class_probabilities field. The keys for this field are human, ai or mixed. To get the probability for the most likely classification, the predicted_class field can be used. The class probability corresponding to the predicted class can be interpreted as the chance that the detector is correct in its classification. I.e. 90% means that 90% of the time on similar documents our detector is correct in the prediction it makes. Lastly, each prediction comes with a confidence_category field, which can be high, medium, or low. Confidence categories are tuned such that when the confidence_categoryfield is high 99.1% of human articles are classified as human, and 98.4% of AI articles are classified as AI.

Additionally, we highlight sentences that been detected to be written by AI. API users can access this highlighting through the highlight_sentence_for_ai field. The sentence-level classification should not be solely used to indicate that an essay contains AI (such as ChatGPT plagiarism). Rather, when a document gets a MIXED or AI_ONLY classification, the highlighted sentence will indicate where in the document we believe this occurred.

Are you storing data from API calls?

No. We do not store or collect the documents passed into any calls to our API. We wanted to be overly cautious on the side of storing data from any organizations using our API.

However, we do store inputs from calls made from our dashboard. This data is only used in aggregate by GPTZero to further improve the service for our users. You can refer to our privacy policy for more details.