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GPTZero

Verified
Freemium

AI text detector that flags content generated by ChatGPT, Claude, and Gemini, with sentence-level highlighting and a built-in plagiarism checker.

Quick Facts

Pricing
Free up to 10,000 characters per scan; Essential from $8.33/mo (annual, 150k words/mo), Premium $12.99/mo, Professional $24.99/mo
10
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favorites
Category
ais
Added
Jun 2026
Official URL
gptzero.me

Tool overview

Overview

Official website restored from the pre-incident audit; product details pending editorial verification.

Features

  • AI detection across major LLMs with sentence-level color-coded highlighting
  • Advanced AI Scan with in-depth probability analysis
  • Built-in plagiarism checker for unattributed external content
  • Hallucination Detector for fabricated citations
  • Integrations: Chrome extension, Google Docs, Canvas, Google Classroom, API

Tags

gptzero
text
detector
flags

Use Cases

  • Educators screening student submissions for AI-generated writing

  • Verifying mixed human and AI documents

  • Checking content authenticity before publishing

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