GPTZero

More than an AI detector. Preserve quality.

Freemium

Description

GPTZero provides advanced AI detection capabilities, identifying content generated by major large language models including ChatGPT, GPT-4, Gemini, Claude, and LLaMA. Developed with a focus on accuracy and reliability, the tool analyzes text at the document, paragraph, and sentence levels to determine the probability of AI authorship. It aims to help users distinguish between human-written and AI-generated content across various domains, particularly emphasizing academic integrity and authentic writing.

Beyond core AI detection, GPTZero offers a suite of tools to enhance writing quality and verification. These include a plagiarism checker to identify copied content, authorship verification features for transparency, a source finder to validate claims, and grammar checking capabilities. The platform integrates seamlessly with common educational and productivity tools like Canvas, Moodle, Google Docs, and Chrome, alongside offering an API for custom implementations, making it a comprehensive solution for educators, writers, recruiters, and other professionals concerned with content origin and quality.

Key Features

AI Detector: Scan documents or text for AI-generated content from models like ChatGPT, Gemini, Claude, and Llama.
Advanced AI Scan: Provides in-depth results on AI probabilities and highlights sentence-level contributions.
AI Vocabulary Scan: Identifies commonly used words associated with AI writing.
Plagiarism Checker: Detects content copied from external sources without attribution.
Authorship Verification: Offers writing reports and video replay to prove human origin and preserve transparency.
Source Finder: Helps users verify claims by finding reliable sources.
Grammar Check: Corrects grammar and spelling errors to improve writing.
AI Grader: Assists educators in grading assignments faster with detailed feedback.
LMS & Tool Integrations: Connects with Canvas, Moodle, Google Docs, Chrome, Zapier, and offers an API.
High Accuracy Detection: Claims 99% accuracy and best-in-class performance based on independent benchmarks.

Use Cases

Fostering academic integrity in education
Ensuring authentic voice for writers
Improving student writing skills
Screening candidates in recruitment
Detecting AI phishing and cyberattacks
Verifying data sources for ML model training
Checking content originality for publishers
Validating claims with reliable sources

Frequently Asked Questions

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.