GPTZero + Canvas
The easiest way to scan for AI writing
Detect potential AI usage on student assignments right in Canvas
with GPTZero's Canvas integration.
When you add GPTZero's AI scan for Canvas, you unlock more than just an AI checker. We're built
with educators in mind, with the support of the American Federation of Teachers (AFT).
GPTZero + Canvas features
A simple one time integration per institution lets you detect all
top AI models, from ChatGPT, Gemini, Claude, Llama, and more.
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.Can’t find an answer? You can talk to our customer service team.
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.
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.
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.
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.
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.
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:
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.
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_category
field 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.
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.
You can use the following bibtex citation:
@misc{tian2024gptzero,
publisher = {GPTZero},
url = {https://gptzero.me},
year = {2024},
author = {Tian, Edward and Cui, Alexander},
title = {GPTZero: Towards detection of AI-generated text using zero-shot and supervised methods}
}