Gptzero
GPTZero is an AI content detection platform designed to identify text generated by large language models (ChatGPT, GPT-5, Gemini, Claude, Llama, etc.), verify authorship, detect hallucinated citations, check plagiarism and grammar, and provide in-depth writing reports for educators, publishers, and organizations.
Gptzero is ai detection software teams evaluate for education & research. Use this page to review pricing, integration signals, and the best alternatives before you commit.
Quick Overview
Best for: Education & Research
What it does
AI Detection software for decision-makers comparing workflow fit and alternatives.
Best fit
Education & Research
Pricing snapshot
Freemium from Free
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Gptzero
GPTZero is a commercial AI detection and writing-assessment platform built to preserve human authorship and help organizations surface AI-generated content. It detects text from a wide range of LLMs (ChatGPT, GPT-5, GPT-4, Gemini, Claude, Llama, and others), provides sentence-level and document-level AI probability scoring, and offers supplementary tools like hallucination detection, plagiarism checking, grammar correction, and authorship verification. The product is targeted at educators, students, writers, recruiters, publishers, security teams, and ML engineers seeking reliable detection, writing feedback, and integrations into existing workflows.
GPTZero emphasizes interpretability (color-coded sentence-level highlights and natural-language explanations), research-backed accuracy (independent benchmarks claiming industry-leading accuracy), and classroom- and enterprise-ready integrations (Chrome, Google Docs, Canvas, Zapier, API). It also offers premium features such as video replay of the writing process, advanced insights, and deeper plagiarism scanning.
GPTZero is an AI content detection platform designed to identify text generated by large language models (ChatGPT, GPT-5, Gemini, Claude, Llama, etc.), verify authorship, detect hallucinated citations, check plagiarism and grammar, and provide in-depth writing reports for educators, publishers, and organizations.
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AI Detector
Detects AI-generated text across major LLMs and provides percentage likelihood and highlighted phrases indicating AI usage.
Advanced AI Scan
In-depth results and advanced accuracy scanning aimed at reducing false positives and improving detection across modern LLMs.
AI Vocabulary
Identifies commonly used AI words and vocabulary patterns within a document.
Hallucination Detector
Detects hallucinated or fabricated citations and fake academic sources in text.
Plagiarism Checker
Searches for content copied from outside sources to ensure originality and proper attribution.
Grammar Checker
Provides grammar and spelling corrections and basic writing feedback.
Authorship Verification & Video Proof
Options to verify authentic human authorship including video replay of the writing process (premium feature) and other verification metrics.
AI Grader and Writing Report
Grades writing and delivers detailed feedback to speed instructor grading and provide student-focused guidance.
Sentence-level Interpretability
Color-coded sentence-level detection and natural-language explanations showing why text is classified as AI.
Multi-component Detection Model
A proprietary model composed of multiple components that analyze perplexity, burstiness, style, and hundreds of factors to maximize accuracy and reduce false positives.
ESL De-biasing
Model training and bias mitigation specifically aimed at reducing false positives for English-as-a-second-language writers.
Pricing
Free tier available: basic AI detection, free grammar check, Google Docs extension, and ability to scan text (account required for scans over 10,000 characters).
Free
Free- Basic AI detection and sentence-level highlights
- Free grammar check and basic writing feedback
- Google Docs extension (free)
- Ability to sign up and run scans (account required for long scans)
Premium / Paid
Not publicly listed on provided content — upgrade required (contact sales or sign in to view plans)- Advanced AI Scan with higher insights and accuracy
- Video proof of writing process (video replay)
- Advanced insights and deeper plagiarism detection
- Enterprise features and dedicated integrations
Enterprise / Teams
Contact sales- LMS integrations (Canvas, Google Classroom) and admin dashboards
- Dedicated support, SLAs and deployment assistance
- API access and bulk/enterprise licensing
Use Cases
For Teachers & Educational Institutions
Foster academic integrity, integrate detection into LMS (Canvas, Google Classroom), and use sentence-level reports and video replays to guide student conversations.
For Students
Improve writing with grammar feedback, avoid false accusations via transparent reports, and verify authorship where required.
For Writers & Publishers
Ensure writing sounds authentic, check for AI influence, and preserve trust with clients or readership using interpretable reports.
For Recruiters & Hiring Teams
Screen written submissions and interview responses to prioritize human applicants over AI-generated responses.
For Cybersecurity Teams
Detect AI-generated phishing or social-engineering text used in attacks and strengthen defense against AI-driven threats.
For ML Engineers & Researchers
Validate datasets, detect synthetic content in training data, and access API/integration support for research and model training.
Integrations
Chrome extension
Scan web pages and see AI detection and typing-pattern metrics while browsing.
Google Docs
Verify authorship and view detection metrics directly inside Google Docs (extension/add-on — Google Docs integration is free).
Canvas / Learning Management Systems
Integrate AI detection into Canvas and other LMS platforms for assignment scanning and classroom workflow.
Zapier
Create no-code workflows to automate AI detection and alerts across systems.
API
Integrate GPTZero's industry-leading AI detection model programmatically (API access mentioned for researchers and enterprises).
Benefits
Limitations
Frequently Asked Questions
What is GPTZero?
How does AI detection work?
Is GPTZero accurate?
How do I use GPTZero's AI detection tool?
Which languages does GPTZero support?
Who should use GPTZero?
What are the limitations of AI detectors?
Getting Started
- 1 Step 1: Paste text or upload a document into the AI Detector interface and press 'Scan'.
- 2 Step 2: For scans over 10,000 characters, create a free account (sign up on the site).
- 3 Step 3: View results with percentage likelihood, phrase-level highlights, and download or share reports. Optionally install Chrome extension or connect Google Docs/Canvas for real-time scanning.
Support
Docs / Help Center
Online help articles, FAQs, troubleshooting and educational resources available on the website.
Contact Form / Sales
Contact sales or support via the website contact form for demos, enterprise inquiries and account help.
Research & Academic Support
Support and API access for academics and researchers is available (contact for details).
API
Not available in provided content (API access and integrations are mentioned; contact sales or support for documentation).
Not available in provided content
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