GPTZero
Best free AI detector - simply paste your text to instantly get an overall AI score and advanced sentence by sentence detection
Introduction
Best free AI detector - simply paste your text to instantly get an overall AI score and advanced sentence by sentence detection.
Overview
GPTZero is a free AI detection tool designed to identify text generated by AI models like ChatGPT, GPT-5, and Gemini. It allows users to scan documents, offering an overall AI score and advanced sentence-by-sentence analysis to determine the likelihood of AI-generated content. GPTZero helps educators, writers, students, recruiters, and cybersecurity professionals identify AI-generated content, verify authorship, and maintain the integrity of their work. The tool provides additional features such as a plagiarism checker, grammar checker, and citation verification, offering users a comprehensive solution for ensuring originality and authenticity in their writing and research.
Key Features
Frequently Asked Questions
Pros & Cons
Advantages
- Detects AI content from various sources.
- Offers advanced AI scan for detailed results.
- Provides AI vocabulary identification.
- Includes citation and fact-checking features.
- Offers a plagiarism checker.
- Includes grammar and spelling correction.
- Provides authorship verification.
- Integrates with Chrome and Google Docs.
Disadvantages
- Accuracy may not be 100% (claimed 99%).
- Reliance on third-party integrations.
- Limited information on the API specifics.
- Potential for false positives.
Use Cases
- Detecting AI-generated content in student assignments to ensure academic integrity.
- Verifying the authenticity of writing submitted by job applicants or freelancers.
- Identifying AI-generated content in articles and blog posts to maintain content originality.
- Evaluating the originality of research papers and academic publications.
- Checking for AI-generated content when browsing the internet using the Chrome extension.
- Ensuring the human-written quality of marketing content and social media posts.
- Detecting AI-generated text in legal documents and contracts to verify authorship.
- Helping students improve writing skills and avoid unintentional plagiarism.
- Identifying AI-generated responses in online forums and discussions.
- Analyzing the quality of writing submitted by users on writing platforms
Who Is It For?
- Teachers and Educators
- Students
- Writers and Content Creators
- Recruiters and HR Professionals
- Cybersecurity Professionals
- Machine Learning Engineers
- Academic Institutions
- Publishers and Editors
- Businesses
- Researchers
Analytics Overview
Last updated December 15, 2025
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