How accurate is GPTZero?

GPTZero is designed with a focus on low false positives. It maintains an error rate of less than 1% for 'highly confident' predictions and has been independently verified by researchers at MIT and Stanford.

Does GPTZero detect GPT-4 and Claude content?

Yes, GPTZero is regularly updated to detect content from the latest models, including GPT-4, Claude 3.5, and Gemini.

Can it detect if a document is only partially written by AI?

Yes, GPTZero specializes in 'mixed' detection, providing a breakdown of which specific sentences are human-written and which are AI-generated.

Is my data stored or used to train models?

GPTZero offers strong data protection. Users can opt out of having their data used for model improvement, and enterprise plans offer additional security layers.

What is the Hallucination Detector?

It is a specialized tool that checks the validity of citations in a paper to ensure that the AI hasn't 'hallucinated' or made up fake sources.

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AI Content Detection

Freemium

GPTZero.cc

The gold standard in AI detection. GPTZero identifies AI-generated text with sentence-level highlighting, plagiarism checks, and LMS integrations for educators and professionals.

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Rating

Reviews

Upvotes

3 months ago

Listed

AI Detector

Plagiarism Checker

Academic Integrity

Content Verification

ChatGPT Detector

AI Content Analysis

Writing Tools

Education AI

Tool information

Provider

GPTZero

Platforms

Web

Chrome Extension

Canvas

Google Classroom

Microsoft Word

Languages

English

French

Spanish

German

Chinese

Japanese

Multiple others

API Available

Yes

Added to directory

3 months ago

Last updated

about 2 months ago

Rating

Not available

Pricing

Freemium

About GPTZero.cc

What the tool does and who it's for

GPTZero.cc (officially operating as GPTZero) is a leading AI detection platform designed to identify content generated by LLMs like ChatGPT, GPT-4, Claude, and Gemini. Trusted by over 10 million users, it offers sentence-level analysis, highlighting specific parts of a document that appear AI-written. Beyond simple detection, it provides tools for authorship verification, plagiarism checking, and a 'Hallucination Detector' to verify citations. It is widely adopted in education for its integrations with Canvas and Google Classroom, helping maintain academic integrity while offering a nuanced 'mixed' classification for hybrid human-AI content.

Key capabilities

Sentence-level Highlighting: Specifically identifies which parts of the text are AI-generated.

Mixed Content Classification: Distinguishes between entirely human, entirely AI, and mixed writing.

Hallucination Detector: Scans and verifies academic citations to identify fake sources.

Deep Analysis: Provides confidence scores (Uncertain, Moderately, or Highly Confident).

LMS Integration: Seamlessly works within Canvas, Blackboard, and Google Classroom.

Authorship Verification: Allows users to prove their writing process through transparency reports.

Bulk Upload: Scan up to 250 files simultaneously for enterprise and professional users.

Chrome Extension: Detects AI content in real-time as you browse or read emails.

Pricing

Freemium — plans below

Basic / Free

Up to 10,000 characters per month
Basic AI detection
Limited batch uploads

Premium

Professional

$24.99/mo (billed annually)

500,000 words per month
Everything in Premium
Up to 10 million words overage
Scan 250 files at once
LMS Integration

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