AI Content Detector
GPTZero
GPTZero is an AI content detector and writing analysis platform for identifying AI-generated text, plagiarism, and authorship signals.
GPTZero
What is GPTZero?
GPTZero is a web-based AI detection and writing analysis platform. It helps users scan text and documents for likely AI-generated content, review authorship signals, detect plagiarism, and improve writing quality with related feedback tools.
GPTZero vs Similar AI Tools
| Pricing Model | Free, Freemium | Free | Free, Freemium | Free |
| Free Credits | ||||
| Key Features |
|
|
|
|
| Pros |
|
|
|
|
| Cons |
|
|
|
|
| Best For |
|
|
|
|
How to use GPTZero?
- 1Paste text into the detector or upload a document.
- 2Choose the scan type if available, such as basic or advanced analysis.
- 3Review highlighted passages and probability results.
- 4Use the plagiarism, grammar, or authorship tools for deeper checks.
- 5Install the browser or Google Docs integration if you want scanning while you write.
GPTZero Key Features
- AI-generated text detection
- Advanced AI scan with probability analysis
- Sentence-level highlights
- Plagiarism checking
- Grammar and spelling feedback
- Authorship verification and writing replay
- Chrome extension integration
- Google Docs and classroom integrations
- Multilingual detection support
- API access for developers
GPTZero Use Cases
- Checking essays and assignments for AI-generated text
- Verifying originality in publishing and editorial workflows
- Reviewing writing quality before submission
- Helping educators support academic integrity
- Screening candidate or applicant writing samples
- Detecting plagiarism alongside AI-written content
- Supporting authorship transparency in Google Docs
- Integrating AI detection into custom workflows via API
GPTZero Pricing & Free Credits
GPTZero currently operates on a Free, Freemium model.
Free TierFree Credits
Free
Free
Basic scanning is available with limited character length and account requirements for larger scans.
Paid Plans
Premium
$12.99/month billed annually
Includes up to 300,000 words per month, advanced AI scan, multilingual detection, downloadable reports, and Chrome extension highlights.
Professional
$24.99/month billed annually
Includes up to 500,000 words per month, higher overage limits, batch scanning, page-by-page scanning, enterprise security, and LMS integration.
GPTZero Pros & Cons
Pros
- Covers AI detection, plagiarism, and writing feedback in one platform
- Offers Google Docs, Chrome, and LMS integrations
- Provides sentence-level highlights and authorship tools
- Supports multiple languages
Cons
- Accuracy can vary by document length and text type
- Best results are typically on longer prose
- Some advanced features require a paid plan
What is GPTZero best for?
- Educators and schools
- Writers and editors
- Students checking originality
- Recruiters reviewing written samples
- Organizations needing AI content screening