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GPTzero

★★★★☆ 4.2
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Freemium AI Detection

Last updated July 18, 2026

GPTZero-AI-Detection-tool-GPT4-Claude-Gemini

GPTZero is a leading AI detection platform that helps educators, businesses, publishers, and professionals identify AI-generated content with high accuracy. It can detect text created by ChatGPT, GPT-5, Claude, Gemini, Llama, and other major AI models while also providing plagiarism detection, writing verification, and grammar analysis.

Trusted by over 17 million users and 1 million educators, GPTZero integrates with Google Docs, Google Classroom, Canvas, Chrome, Zapier, and APIs, making AI detection easy across your existing workflow.


Key Features

  • AI Content Detector
  • Advanced AI Scan
  • Plagiarism Checker
  • Hallucination Detector
  • Writing Replay
  • AI Writing Feedback
  • Grammar Checker
  • Authorship Verification
  • AI Highlights
  • Chrome Extension
  • Google Docs Integration
  • Google Classroom Integration
  • Canvas Integration
  • Zapier Integration
  • API Access
  • Multilingual AI Detection

Best For

  • Teachers
  • Students
  • Universities
  • Recruiters
  • Publishers
  • Content Writers
  • Businesses
  • Editors
  • Researchers

Pricing Plans

Free

Free
  • 10,000 words/month
  • Basic AI Scan
  • 3 Advanced Scans
  • Chrome AI Highlights

Professional

₹1,199/month
  • 500,000 words/month
  • Scan 250 files at once
  • Page-by-page scanning
  • LMS Integration