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Check content for AI patterns and plagiarism, then share scan reports
AI DetectionPlagiarism Check
GPTZero
Check writing for AI-associated patterns and review sentence-level findings
GPTZero is a web-based AI writing detector that checks text for patterns associated with ChatGPT, Claude, Gemini, and other models. It adds sentence-level findings, writing feedback, and education integrations such as Canvas and Google Classroom, helping reviewers inspect a document rather than rely on a single label.
Updated
2026-10-26
Platforms
Web / Chrome Extension
Freemium
The site promotes a free detector and links to plan options, but this capture did not expose exact prices or scan limits; confirm the current terms on GPTZero's official pricing page.
* Pricing is for reference only; see the official site for current pricing.
GPTZero Key Features
AI Text Scan
Check a document for patterns associated with several major AI models before deciding what needs a closer human review.
Sentence Findings
Inspect sentence-level results to locate passages behind a document's overall assessment instead of reviewing only one summary label.
Writing Feedback
Use writing feedback to examine clarity and quality alongside detection signals, keeping authorship review separate from editing advice.
Education Tools
Use the browser extension or connect with supported learning platforms to bring document checks closer to existing review workflows.
GPTZero Best For
Educators
Review submitted writing with sentence-level signals and connect checks to learning workflows without treating a score as proof.
Student writers
Inspect a draft's flagged passages and writing feedback, then use the findings to explain and document the writing process.
Editors
Screen incoming copy for patterns associated with major AI models before asking authors for context or further review.
Pros
- Sentence-level results make flagged passages easier to inspect
- Education integrations fit established classroom workflows
- Writing feedback adds context beyond an AI score
Considerations
- The captured pricing page did not expose exact plans or scan limits
- Detection results need human review and should not stand alone
GPTZero Quick Start and Practical Tips
Quick start
- 1
Paste one representative passage rather than a mixed-purpose file, then run a scan to get its document-level result.
- 2
Open sentence-level findings and compare flagged lines with the original draft or revision history before following up.
- 3
For class reviews, connect Canvas or Google Classroom to fit checks into the existing submission workflow.
Pro tip
Core tip: Treat the score as a review signal, not a verdict. Do compare flagged passages with drafts, notes, or revision history; don't confront a writer or make a disciplinary decision from one scan. If the evidence conflicts, ask about the writing process and keep the detector output as one contextual clue.
Frequently asked questions
01Can GPTZero prove who wrote a passage?
No. A detector estimates patterns in text and cannot establish authorship by itself. For a consequential review, compare the result with drafts or revision history and ask the writer about their process before reaching a conclusion.
02How should I review a mixed human-and-AI draft?
Use sentence-level findings to locate passages worth discussing, then compare them with the surrounding draft and available writing history. A flagged sentence is a lead for review, not proof that the entire document was generated.
03Should one scan decide an academic case?
No. A single scan does not capture the full writing process and may misclassify text. Follow your institution's review procedure, consider drafts and other context, and give the student a chance to explain their work.
GPTZero Alternatives
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