GPTZero logo - Writing AI tool

GPTZero

AI ToolFreemium

GPTZero is the leading AI text detection platform that identifies ChatGPT, GPT-4, and other AI-generated content with advanced machine learning algorithms for academic integrity.

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GPTZero screenshot - Writing interface and features overview

Key Features & Benefits

  • GPTZero is a writing solution designed for professional environments
  • Suitable for businesses looking to integrate AI capabilities
  • Pricing model: Freemium - making it accessible for both personal and professional use
  • Part of our curated Writing directory with 3+ specialized features

About GPTZero

GPTZero stands as the premier AI text detection platform, revolutionizing how educators, writers, and institutions identify artificially generated content in an era where AI writing tools have become increasingly sophisticated. Created by Edward Tian at Princeton University, GPTZero employs cutting-edge machine learning algorithms and natural language processing techniques to analyze text patterns, linguistic markers, and stylistic inconsistencies that distinguish human-written content from AI-generated text produced by models like ChatGPT, GPT-4, Claude, Gemini, and other large language models. The platform's proprietary detection engine examines multiple linguistic dimensions including perplexity, burstiness, and semantic coherence to provide highly accurate AI detection results with remarkable precision across various content types and writing styles.

At the core of GPTZero's capabilities lies its advanced artificial intelligence algorithms that can identify subtle patterns in sentence structure, vocabulary usage, and writing flow that are characteristic of different AI models, enabling users to detect content generated by the latest generative AI technologies with exceptional accuracy. The platform serves educators, content creators, publishers, and businesses who need to verify the authenticity of written materials and maintain academic integrity in an age where AI-generated content can be difficult to distinguish from human writing. GPTZero's detection system continuously evolves through machine learning, adapting to new AI writing patterns and maintaining effectiveness against emerging AI text generation techniques, making it an essential tool for academic institutions worldwide.

The platform delivers enterprise-grade AI detection solutions that scale from individual users to large organizations requiring robust content verification systems. With features like batch document scanning, detailed probability scores, comprehensive reporting, and API access for developers, GPTZero empowers users to integrate AI detection capabilities directly into their existing workflows and educational platforms. Beyond basic detection, the platform offers educational resources, Chrome extension for real-time browsing detection, and team collaboration features that support authentic learning environments while helping identify potential academic misconduct and ensuring transparency in content creation across various industries and educational institutions.

Key Features

Advanced AI text detection for ChatGPT, GPT-4, Claude, Gemini and other AI models

Real-time AI writing detection with detailed probability scores and analysis

Batch document scanning for processing multiple files simultaneously

Chrome extension for instant AI detection while browsing the web

Academic integrity tools specifically designed for educational institutions

Plagiarism detection capabilities integrated with AI content analysis

API access for developers to integrate AI detection into custom applications

Detailed reporting with sentence-level and paragraph-level AI probability scores

Support for multiple file formats including PDF, Word, and plain text

Team collaboration features with shared workspaces and user management

Educational resources and guides for understanding AI detection technology

Enterprise-grade security and privacy protection for sensitive documents

Pricing Plans

Basic

Free

  • GPTZero dashboard access
  • - Origin Chrome extension included
  • - 10000 words per month scanning limit
  • - 7 scans per hour rate limit
  • - Premium AI detection models access
  • - Batch file scanning up to 10 files
  • - Community support via help center
  • - Basic reporting and analytics
  • - Standard security and privacy protection

Essential

$15/month (monthly) or $10/month (yearly)

  • All essential AI detection features
  • - 150000 words per month scanning limit
  • - Premium AI detection models access
  • - Batch file scanning capabilities
  • - Origin Chrome extension included
  • - Enhanced detection accuracy
  • - Standard customer support
  • - Basic team collaboration features
  • - No plagiarism scanning included

Premium

$24/month (monthly) or $16/month (yearly)

  • Full access to all features- Plagiarism scanning capabilities included- 300000 words per month scanning limit- Unlimited batch file scanning- Team member invitations and management- Priority customer support access- Advanced reporting and analytics- Enhanced security and privacy controls- API access for custom integrations

Pricing information last updated: June 28, 2025