# GPTZero: AI Detection & Writing Replay

According to OpenAITools.app telemetry verified on 2026-11-11, GPTZero: AI Detection & Writing Replay (chrome.google.com) is an AI platform indexed under AI Detector generating 0 monthly visits with a month-over-month traffic delta of +0 (0.0%). Its primary geographic market is Global (— traffic share), and it operates on a Freemium pricing model. Top competing alternatives by monthly volume include GPTZero (23.25M visits/mo), ZeroGPT (32.86M visits/mo), GPT-Zero (1.74K visits/mo).

AI detection, citation checks and writing replays inside Google Docs

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | GPTZero: AI Detection & Writing Replay |
| Handle | origin-by-gptzero |
| Status | active |
| Origin | official |
| Maintenance | active |
| Official Domain | chrome.google.com |
| Website URL | https://chrome.google.com/webstore/detail/origin-by-gptzero-chatgpt/kgobeoibakoahbfnlficpmibdbkdchap |
| Categories | AI Detector, AI Content Detector, Large Language Models (LLMs), AI Checker |
| Pricing Model | Freemium |
| Monthly Visits | 0 |
| MoM Traffic Change | 0 |
| MoM Growth Rate | — |
| Primary Market | Global |
| Market Share | — |
| Direct Visits | 0 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 0 |
| Email Visits | 0 |
| Review Score | 4.5 |
| Saved Count | 4 |
| Supported Platforms | Browser Extension |
| Billing Platforms |  |
| Attributes | Features: Browser Extension; Pricing: Free |
| Tags | AI detection, AI content detector, ChatGPT detector, Plagiarism detection, Writing verification, Google Docs extension |

## Overview

This extension, formerly marketed as Origin by GPTZero, is the in-browser arm of GPTZero's writing-integrity platform. It is aimed at teachers, students and researchers who need to know not only whether text looks machine-written but how a document took shape. Installed on Chrome, it works inside Google Docs and other writing surfaces, running detection and feedback where the work actually happens rather than in a separate dashboard.

The Google Docs experience adds four main capabilities: live AI-detection checks as you type, customisable written feedback inserted as Google Docs comments, a writing video-replay report with typing-pattern analysis, and bibliography/citation checking with research-focused fact checks. The replay feature reconstructs the writing process — showing edits, pastes and writing bursts — and in multi-editor documents it can indicate how much each contributor wrote, which is useful when several people collaborate on one file. Because it constantly screens large pastes as well as natural typing patterns, it doubles as a plagiarism-style review aid.

GPTZero Inc. states that the extension supports enterprise-grade security and privacy controls with SOC2 and FERPA compliance, and it has been cited by outlets including The New Yorker, The New York Times and Harvard Business Review. The extension itself is free to install from the Chrome Web Store; the wider GPTZero platform offers additional paid features. It is an independent third-party product and is not produced or endorsed by Google or OpenAI.

## Pricing & Plans

Free to install and use from the Chrome Web Store. Some deeper reporting and institutional features live in GPTZero's wider platform, which uses separate paid plans.

## Key Features & Capabilities

- **Live AI detection in Google Docs:** Run AI-detection checks continuously as a document is written, not just after it is finished.
- **Writing video replay:** Play back how a document was written, edited and pasted, with typing-pattern analysis and multi-user contribution percentages.
- **Citation and bibliography check:** Flag hallucinated or inaccurate references, uncited claims and plagiarism, then suggest better sources.
- **Customisable live feedback:** Upload a rubric and assignment details so feedback is drafted directly into Google Docs comments.
- **Built for classrooms and institutions:** Compliance-oriented design with SOC2 and FERPA alignment, used by teachers who add it to their syllabus.

## Primary Use Cases

- **Coaching students through writing (Teacher):** Watch how drafts develop, leave rubric-based comments and identify suspicious pastes during the writing process rather than only at submission.
- **Verifying your own work (Student):** Check that your citations are real and your writing reads as authentically human before you submit.
- **Screening sources and claims (Researcher):** Run fact and bibliography checks to catch fabricated references and uncited claims in a manuscript.
- **Reviewing multi-author documents (Editor or manager):** Use the replay report to see how different contributors shaped a shared Google Doc.

## Strengths

- Runs inside Google Docs where the writing actually happens
- Writing replay reveals process, not just a final AI-likelihood score
- Corroborates originality with citation and bibliography checks
- Backed by a well-known vendor cited in major press, with SOC2 and FERPA alignment

## Limitations

- AI-detection scores are probabilistic and should not be treated as definitive proof
- Deeper reporting and admin features push you toward GPTZero's paid platform
- Requires meaningful permission access to documents and personal data

## Frequently Asked Questions

### Is this the same as Origin by GPTZero?
Yes. The extension once branded 'Origin by GPTZero' is now listed as GPTZero: AI Detection & Writing Replay under publisher GPTZero Inc., with the same listing and product line.

### How does the writing replay work?
It reconstructs a document's history to show edits, pastes and writing bursts, adds a proprietary typing-pattern analysis, and in shared documents breaks down how much each writer contributed by percentage.

### Can it check citations and plagiarism?
Yes. The bibliography and source check flags AI-hallucinated or inaccurate references, uncited claims and plagiarism, and suggests improvements.

### Is it free?
The Chrome extension is free to install and use. GPTZero's broader platform offers additional paid plans for deeper reporting and institutional features.

### What is GPTZero: AI Detection & Writing Replay's monthly traffic and growth trend?
GPTZero: AI Detection & Writing Replay currently receives 0 monthly visits, with a month-over-month traffic change of +0 (0.0% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo.

### Is GPTZero: AI Detection & Writing Replay free? What is its pricing model?
GPTZero: AI Detection & Writing Replay operates on a Freemium pricing model. Free to install and use from the Chrome Web Store. Some deeper reporting and institutional features live in GPTZero's wider platform, which uses separate paid plans. Supported billing and checkout platforms include: not listed.

### What are the best GPTZero: AI Detection & Writing Replay alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to GPTZero: AI Detection & Writing Replay are: 1. GPTZero (23.25M visits/mo); 2. ZeroGPT (32.86M visits/mo); 3. GPT-Zero (1.74K visits/mo); 4. ZeroGPT Plus (134.64K visits/mo); 5. Undetectable AI (3.11M visits/mo).

### Which platforms and core AI capabilities does GPTZero: AI Detection & Writing Replay support?
GPTZero: AI Detection & Writing Replay is classified under AI Detector, AI Content Detector, Large Language Models (LLMs), AI Checker, supports the following platforms: Browser Extension, and its core capability tags include: AI detection, AI content detector, ChatGPT detector, Plagiarism detection, Writing verification, Google Docs extension.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | Freemium, Paid | [Compare](https://openaitools.app/compare/gptzero-me-vs-origin-by-gptzero) |
| [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | Freemium, Paid | [Compare](https://openaitools.app/compare/origin-by-gptzero-vs-zerogpt) |
| [GPT-Zero](https://openaitools.app/tool/gpt-zero) | 1,740 | Freemium | [Compare](https://openaitools.app/compare/gpt-zero-vs-origin-by-gptzero) |
| [ZeroGPT Plus](https://openaitools.app/tool/zerogpt-plus) | 134,635 | Freemium | [Compare](https://openaitools.app/compare/origin-by-gptzero-vs-zerogpt-plus) |
| [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | Freemium | [Compare](https://openaitools.app/compare/origin-by-gptzero-vs-undetectable-ai) |
| [Isgen AI Detector](https://openaitools.app/tool/isgen-ai) | 901,917 | Freemium | [Compare](https://openaitools.app/compare/isgen-ai-vs-origin-by-gptzero) |
| [ZeroGPT.CC](https://openaitools.app/tool/zerogpt-cc) | 78,737 | Freemium | [Compare](https://openaitools.app/compare/origin-by-gptzero-vs-zerogpt-cc) |
| [Detecting-AI.com](https://openaitools.app/tool/detecting-ai-com) | 505,146 | Freemium, Paid | [Compare](https://openaitools.app/compare/detecting-ai-com-vs-origin-by-gptzero) |
| [AI Detector Writer](https://openaitools.app/tool/ai-detector-writer) | 111,129 | Free | [Compare](https://openaitools.app/compare/ai-detector-writer-vs-origin-by-gptzero) |
| [MyDetector](https://openaitools.app/tool/mydetector) | 534,478 | Free | [Compare](https://openaitools.app/compare/mydetector-vs-origin-by-gptzero) |
| [Winston AI](https://openaitools.app/tool/winston-ai) | 604,454 | Freemium, Free Trial | [Compare](https://openaitools.app/compare/origin-by-gptzero-vs-winston-ai) |
| [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | Paid | [Compare](https://openaitools.app/compare/origin-by-gptzero-vs-originality) |

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Source: https://openaitools.app/tool/origin-by-gptzero