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GPTZero

Freemium
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AI detector with sentence-level analysis that identifies content from ChatGPT, GPT-5, and Gemini.

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What is GPTZero?#

GPTZero is a leading AI content detector used by over 17 million users and 1 million educators to identify AI-generated text with sentence-level precision.

What can GPTZero do?#

  • 01

    AI content detector

    Detects content generated by ChatGPT, GPT-5, Gemini, Claude, Llama and more.

  • 02

    Independent accuracy benchmark

    99% overall accuracy validated by Penn State AI Research Lab.

  • 03

    Writing feedback tools

    Provides AI-powered writing feedback alongside detection.

  • 04

    Plagiarism detection

    Checks content against external sources for plagiarism.

  • 05

    Video replay verification

    Uses video replay and human verification to confirm authored writing.

  • 06

    Classroom integrations

    Built-in integrations with Canvas and Google Classroom.

  • 07

    Multilingual coverage

    Supports English, German, Portuguese, French and Spanish detection.

Use Cases#

  • teachersFlag likely AI-generated student submissions before grading essays.
  • educatorsVerify authored writing with video replay evidence inside Canvas.
  • recruitersCheck whether applicant writing samples were generated by AI tools.
  • publishersScreen submitted manuscripts for AI-generated passages before accepting them.
  • copywritersCheck outsourced drafts for AI content to keep deliverables original.

Frequently Asked Questions#

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