GPTZero
Last Updated on: Nov 18, 2025
GPTZero
0
0Reviews
4Views
1Visits
AI Detector
AI Content Detector
Writing Assistants
General Writing
AI Blog Writer
AI Creative Writing
Copywriting
AI Book Writing
AI Rewriter
AI Script Writing
AI Email Writer
AI Story Writing
Letter Writer
Essay Writer
Report Writing
AI Plagiarism Checker
AI Workflow Management
AI Task Management
AI Knowledge Management
AI Assistant
AI Education Assistant
AI Productivity Tools
What is GPTZero?
GPTZero is a leading AI detection tool designed to identify text generated by large language models like ChatGPT, GPT-4, Gemini, and others. Founded in 2023, it has become the most accurate commercial AI detector, trusted by millions and widely used in education, publishing, recruiting, and business. GPTZero analyzes text based on multiple factors, including predictability, sentence variety, and style uniqueness, to determine the likelihood of AI authorship. It highlights AI-generated phrases and supports multiple languages, helping educators and others maintain authenticity and responsible AI usage.
Who can use GPTZero & how?
  • Educators & Institutions: Monitor academic integrity and guide responsible AI use.
  • Publishers & Writers: Verify originality and avoid AI-generated content misconduct.
  • Recruiters & HR: Detect AI in candidate submissions for fair evaluation.
  • Marketers & Content Creators: Ensure authenticity in brand messaging and copy.
  • Students & Professionals: Get feedback to build honest and original writing skills.

How to Use GPTZero?
  • Paste Text or Upload Documents: Submit your content for AI detection.
  • View Detailed Results: See percentage likelihood of AI content with highlighted phrases.
  • Use Chrome Extension: Get real-time AI detection on web pages and Google Docs.
  • Integrate with LMS: Connect GPTZero with Canvas, Moodle, and Google Classroom.
What's so unique or special about GPTZero?
  • Highest Accuracy: Independent tests show GPTZero’s 99% accuracy rate.
  • Multi-Model Detection: Supports GPT, Gemini, Claude, LLaMa, and more.
  • Sentence-Level Highlighting: Pinpoints exact AI-generated text.
  • Debiased for ESL: Minimizes false positives for non-native English writers.
  • Comprehensive Reporting: Provides transparency and explanations with each scan.
Things We Like
  • Exceptional detection accuracy with minimal false positives.
  • Real-time detection via browser extension and document uploads.
  • Supports multiple popular AI models and languages.
  • Clear, sentence-level AI content highlighting for transparency.
Things We Don't Like
  • May require longer text for most reliable results.
  • No absolute certainty; best used as a guide, not final judgment.
  • Primarily focused on text detection, limited to written content.
  • Advanced features may require subscription or registration.
Photos & Videos
Screenshot 1
Screenshot 2
Pricing
Freemium

Free

$ 0.00

10,000 words per month
Basic AI Scan
5 Free Advanced Scans

Essential

$ 8.33

Basic AI Scan
Up to 150,000 words per month
Premium AI detection models
Plagiarism scanning
Advanced Grammar and Writing feedback

Premium

$ 12.99

Everything in GPTZero Essential
Up to 300,000 words per month
Advanced AI Deep Scan
Multilingual AI detection
Download AI reports

Professional

$ 24.99

All of Premium
Up to 10 million words overage
Scan up to 250 files at once
Page by page scanning
Enterprise grade security LMS Integration
ATB Embeds
Reviews

Proud of the love you're getting? Show off your AI Toolbook reviews—then invite more fans to share the love and build your credibility.

Product Promotion

Add an AI Toolbook badge to your site—an easy way to drive followers, showcase updates, and collect reviews. It's like a mini 24/7 billboard for your AI.

Reviews

0 out of 5

Rating Distribution

5 star
0
4 star
0
3 star
0
2 star
0
1 star
0

Average score

Ease of use
0.0
Value for money
0.0
Functionality
0.0
Performance
0.0
Innovation
0.0

Popular Mention

FAQs

GPTZero is a top AI content detection tool that identifies text generated by major AI language models with high accuracy.
It achieves a 99% accuracy rate, validated by independent benchmarks and large-scale testing.
Yes, it detects text from ChatGPT, GPT-4, Gemini, Claude, LLaMa, and others reliably.
Yes, there is a Chrome extension that provides AI detection on web pages and Google Docs.
It supports English, German, Spanish, French, Portuguese, and is widely used in over 100 countries.

Similar AI Tools

MyDetector
logo

MyDetector

0
0
10
0

MyDetector.ai is a free and easy-to-use AI detector that utilizes advanced algorithms to analyze text and determine whether it was written by a human or an AI. It offers high-precision detection, supports various document formats, provides real-time results, and highlights AI-generated parts, making it a valuable tool for verifying text authenticity and optimizing content for a more natural, human-like tone.

MyDetector
logo

MyDetector

0
0
10
0

MyDetector.ai is a free and easy-to-use AI detector that utilizes advanced algorithms to analyze text and determine whether it was written by a human or an AI. It offers high-precision detection, supports various document formats, provides real-time results, and highlights AI-generated parts, making it a valuable tool for verifying text authenticity and optimizing content for a more natural, human-like tone.

MyDetector
logo

MyDetector

0
0
10
0

MyDetector.ai is a free and easy-to-use AI detector that utilizes advanced algorithms to analyze text and determine whether it was written by a human or an AI. It offers high-precision detection, supports various document formats, provides real-time results, and highlights AI-generated parts, making it a valuable tool for verifying text authenticity and optimizing content for a more natural, human-like tone.

Humanizer.Pro
logo

Humanizer.Pro

0
0
9
0

Humanizer.Pro is a powerful AI-powered tool designed to transform AI-generated text into authentic, high-quality, and natural-sounding human content. It utilizes a sophisticated Large Language Model (LLM) trained to mimic human writing nuances, making AI content suitable for various professional and creative uses such as marketing copy, blog posts, emails, business reports, and website articles.

Humanizer.Pro
logo

Humanizer.Pro

0
0
9
0

Humanizer.Pro is a powerful AI-powered tool designed to transform AI-generated text into authentic, high-quality, and natural-sounding human content. It utilizes a sophisticated Large Language Model (LLM) trained to mimic human writing nuances, making AI content suitable for various professional and creative uses such as marketing copy, blog posts, emails, business reports, and website articles.

Humanizer.Pro
logo

Humanizer.Pro

0
0
9
0

Humanizer.Pro is a powerful AI-powered tool designed to transform AI-generated text into authentic, high-quality, and natural-sounding human content. It utilizes a sophisticated Large Language Model (LLM) trained to mimic human writing nuances, making AI content suitable for various professional and creative uses such as marketing copy, blog posts, emails, business reports, and website articles.

Detectordeia

Detectordeia

0
0
11
0

DetectordeIA is a free, online AI detection and text humanization tool. It helps users identify whether content was generated by artificial intelligence and provides a unique "Humanizer" feature to rewrite AI-generated text, making it sound more natural and human-like, all without requiring registration.

Detectordeia

Detectordeia

0
0
11
0

DetectordeIA is a free, online AI detection and text humanization tool. It helps users identify whether content was generated by artificial intelligence and provides a unique "Humanizer" feature to rewrite AI-generated text, making it sound more natural and human-like, all without requiring registration.

Detectordeia

Detectordeia

0
0
11
0

DetectordeIA is a free, online AI detection and text humanization tool. It helps users identify whether content was generated by artificial intelligence and provides a unique "Humanizer" feature to rewrite AI-generated text, making it sound more natural and human-like, all without requiring registration.

Paparazzi Docs
logo

Paparazzi Docs

0
0
8
1

The Paparazzi Docs AI Writer is a suite of AI-powered writing tools integrated into the Paparazzi Docs document management platform. It's designed to assist writers of all skill levels with their content creation workflow. The AI writer provides a variety of features, including text generation, paraphrasing, summarization, and grammar correction, all accessible from a single application.

Paparazzi Docs
logo

Paparazzi Docs

0
0
8
1

The Paparazzi Docs AI Writer is a suite of AI-powered writing tools integrated into the Paparazzi Docs document management platform. It's designed to assist writers of all skill levels with their content creation workflow. The AI writer provides a variety of features, including text generation, paraphrasing, summarization, and grammar correction, all accessible from a single application.

Paparazzi Docs
logo

Paparazzi Docs

0
0
8
1

The Paparazzi Docs AI Writer is a suite of AI-powered writing tools integrated into the Paparazzi Docs document management platform. It's designed to assist writers of all skill levels with their content creation workflow. The AI writer provides a variety of features, including text generation, paraphrasing, summarization, and grammar correction, all accessible from a single application.

TextFix AI

TextFix AI

0
0
8
2

Textfix.ai is an AI humanizer tool designed to transform AI-generated text into content that is more natural, readable, and human-like. The service's main purpose is to help users bypass AI detection software by rewriting AI-generated content to replicate human writing patterns, while preserving its original meaning.

TextFix AI

TextFix AI

0
0
8
2

Textfix.ai is an AI humanizer tool designed to transform AI-generated text into content that is more natural, readable, and human-like. The service's main purpose is to help users bypass AI detection software by rewriting AI-generated content to replicate human writing patterns, while preserving its original meaning.

TextFix AI

TextFix AI

0
0
8
2

Textfix.ai is an AI humanizer tool designed to transform AI-generated text into content that is more natural, readable, and human-like. The service's main purpose is to help users bypass AI detection software by rewriting AI-generated content to replicate human writing patterns, while preserving its original meaning.

Humanizer AI
logo

Humanizer AI

0
0
9
0

Humanizer AI is a tool designed to convert AI-generated text into writing that sounds natural, human, and relatable. When you paste in content from AI models like ChatGPT or Bard, Humanizer AI applies a multi-step rewriting process that smooths out robotic phrasing, improves emotional tone, ensures natural flow, and reduces patterns that AI detectors tend to pick up. It also offers “human score” feedback, showing how your text performs on several detection systems.

Humanizer AI
logo

Humanizer AI

0
0
9
0

Humanizer AI is a tool designed to convert AI-generated text into writing that sounds natural, human, and relatable. When you paste in content from AI models like ChatGPT or Bard, Humanizer AI applies a multi-step rewriting process that smooths out robotic phrasing, improves emotional tone, ensures natural flow, and reduces patterns that AI detectors tend to pick up. It also offers “human score” feedback, showing how your text performs on several detection systems.

Humanizer AI
logo

Humanizer AI

0
0
9
0

Humanizer AI is a tool designed to convert AI-generated text into writing that sounds natural, human, and relatable. When you paste in content from AI models like ChatGPT or Bard, Humanizer AI applies a multi-step rewriting process that smooths out robotic phrasing, improves emotional tone, ensures natural flow, and reduces patterns that AI detectors tend to pick up. It also offers “human score” feedback, showing how your text performs on several detection systems.

Hate Speech Detector
0
0
4
0

Vinish.dev Hate Speech Detector is a free online moderation tool built to help individuals, community managers, educators, or any users check text for harmful or offensive content. You paste or type in your text, click to analyze, and the tool flags content categories like harassment, hate speech, violence, sexual content, and self-harm. It emphasizes simplicity—no signup or payment required—and gives real-time feedback. Privacy is also core: it does not store or share your input text, keeping your content processing secure and confidential. The goal is to make moderating text easy and accessible for everyone, especially for online platforms or spaces that accept user-generated content.

Hate Speech Detector
0
0
4
0

Vinish.dev Hate Speech Detector is a free online moderation tool built to help individuals, community managers, educators, or any users check text for harmful or offensive content. You paste or type in your text, click to analyze, and the tool flags content categories like harassment, hate speech, violence, sexual content, and self-harm. It emphasizes simplicity—no signup or payment required—and gives real-time feedback. Privacy is also core: it does not store or share your input text, keeping your content processing secure and confidential. The goal is to make moderating text easy and accessible for everyone, especially for online platforms or spaces that accept user-generated content.

Hate Speech Detector
0
0
4
0

Vinish.dev Hate Speech Detector is a free online moderation tool built to help individuals, community managers, educators, or any users check text for harmful or offensive content. You paste or type in your text, click to analyze, and the tool flags content categories like harassment, hate speech, violence, sexual content, and self-harm. It emphasizes simplicity—no signup or payment required—and gives real-time feedback. Privacy is also core: it does not store or share your input text, keeping your content processing secure and confidential. The goal is to make moderating text easy and accessible for everyone, especially for online platforms or spaces that accept user-generated content.

Pismo
logo

Pismo

0
0
6
0

Pismo is an AI-powered writing assistant for Windows and Mac that enhances written communication across any app—emails, documents, browsers, and messengers. It offers features like proofreading, grammar & spelling correction, tone adjustments, length manipulation, translation into multiple languages, and custom prompt creation with hotkeys. Designed for broad usage, from professionals refining reports, students drafting essays, to multilingual users bridging language gaps, Pismo lets you improve clarity, adapt style, and boost productivity without always switching between separate writing tools. It runs as a desktop app with an always-available widget, emphasizes privacy by not storing your texts, and works seamlessly wherever you write.

Pismo
logo

Pismo

0
0
6
0

Pismo is an AI-powered writing assistant for Windows and Mac that enhances written communication across any app—emails, documents, browsers, and messengers. It offers features like proofreading, grammar & spelling correction, tone adjustments, length manipulation, translation into multiple languages, and custom prompt creation with hotkeys. Designed for broad usage, from professionals refining reports, students drafting essays, to multilingual users bridging language gaps, Pismo lets you improve clarity, adapt style, and boost productivity without always switching between separate writing tools. It runs as a desktop app with an always-available widget, emphasizes privacy by not storing your texts, and works seamlessly wherever you write.

Pismo
logo

Pismo

0
0
6
0

Pismo is an AI-powered writing assistant for Windows and Mac that enhances written communication across any app—emails, documents, browsers, and messengers. It offers features like proofreading, grammar & spelling correction, tone adjustments, length manipulation, translation into multiple languages, and custom prompt creation with hotkeys. Designed for broad usage, from professionals refining reports, students drafting essays, to multilingual users bridging language gaps, Pismo lets you improve clarity, adapt style, and boost productivity without always switching between separate writing tools. It runs as a desktop app with an always-available widget, emphasizes privacy by not storing your texts, and works seamlessly wherever you write.

TextGo AI
logo

TextGo AI

0
0
6
0

TextGo AI is an AI Humanizer tool designed to transform AI-generated text into content that appears fully human and bypasses AI detection systems. It helps writers, content creators, students, startups, and agencies ensure their output isn’t flagged by detectors by adjusting for factors like burstiness, perplexity, watermark traces, and other linguistic patterns. Users paste their text, choose a mode, and receive “humanized” output that scores low on AI detection metrics. The tool supports over 80 languages and offers free word limits, subscription levels, scoring feedback, and guarantees around content originality, SEO friendliness, and plagiarism avoidance.

TextGo AI
logo

TextGo AI

0
0
6
0

TextGo AI is an AI Humanizer tool designed to transform AI-generated text into content that appears fully human and bypasses AI detection systems. It helps writers, content creators, students, startups, and agencies ensure their output isn’t flagged by detectors by adjusting for factors like burstiness, perplexity, watermark traces, and other linguistic patterns. Users paste their text, choose a mode, and receive “humanized” output that scores low on AI detection metrics. The tool supports over 80 languages and offers free word limits, subscription levels, scoring feedback, and guarantees around content originality, SEO friendliness, and plagiarism avoidance.

TextGo AI
logo

TextGo AI

0
0
6
0

TextGo AI is an AI Humanizer tool designed to transform AI-generated text into content that appears fully human and bypasses AI detection systems. It helps writers, content creators, students, startups, and agencies ensure their output isn’t flagged by detectors by adjusting for factors like burstiness, perplexity, watermark traces, and other linguistic patterns. Users paste their text, choose a mode, and receive “humanized” output that scores low on AI detection metrics. The tool supports over 80 languages and offers free word limits, subscription levels, scoring feedback, and guarantees around content originality, SEO friendliness, and plagiarism avoidance.

Humanize AI Text
logo

Humanize AI Text

0
0
5
0

HumanizeAI.app is a cutting-edge AI-powered tool that transforms AI-generated text into natural, engaging, and human-like content while preserving the original message. It enhances readability and emotional appeal by expanding dense AI-like sentences, improving flow, and refining tone. Supporting multiple languages, it helps content creators, marketers, professionals, educators, and non-native speakers produce polished, relatable, and accessible writing that resonates with audiences and improves SEO performance.

Humanize AI Text
logo

Humanize AI Text

0
0
5
0

HumanizeAI.app is a cutting-edge AI-powered tool that transforms AI-generated text into natural, engaging, and human-like content while preserving the original message. It enhances readability and emotional appeal by expanding dense AI-like sentences, improving flow, and refining tone. Supporting multiple languages, it helps content creators, marketers, professionals, educators, and non-native speakers produce polished, relatable, and accessible writing that resonates with audiences and improves SEO performance.

Humanize AI Text
logo

Humanize AI Text

0
0
5
0

HumanizeAI.app is a cutting-edge AI-powered tool that transforms AI-generated text into natural, engaging, and human-like content while preserving the original message. It enhances readability and emotional appeal by expanding dense AI-like sentences, improving flow, and refining tone. Supporting multiple languages, it helps content creators, marketers, professionals, educators, and non-native speakers produce polished, relatable, and accessible writing that resonates with audiences and improves SEO performance.

CoverSentry
logo

CoverSentry

0
0
6
0

CoverSentry is an AI-powered tool that analyzes cover letters to detect whether they exhibit patterns typical of AI-generated text, and it also offers a premium cover letter generation service. Built on a fine-tuned BERT model trained specifically on cover letters, it provides quick, free scans to flag robotic phrasing and suggest more human-like writing. The service emphasizes strong privacy: analysis runs on secure servers without storing letters, and generation uses paid APIs with GDPR-aligned safeguards. CoverSentry currently supports English and offers practical guidance to make AI-assisted letters sound authentic.

CoverSentry
logo

CoverSentry

0
0
6
0

CoverSentry is an AI-powered tool that analyzes cover letters to detect whether they exhibit patterns typical of AI-generated text, and it also offers a premium cover letter generation service. Built on a fine-tuned BERT model trained specifically on cover letters, it provides quick, free scans to flag robotic phrasing and suggest more human-like writing. The service emphasizes strong privacy: analysis runs on secure servers without storing letters, and generation uses paid APIs with GDPR-aligned safeguards. CoverSentry currently supports English and offers practical guidance to make AI-assisted letters sound authentic.

CoverSentry
logo

CoverSentry

0
0
6
0

CoverSentry is an AI-powered tool that analyzes cover letters to detect whether they exhibit patterns typical of AI-generated text, and it also offers a premium cover letter generation service. Built on a fine-tuned BERT model trained specifically on cover letters, it provides quick, free scans to flag robotic phrasing and suggest more human-like writing. The service emphasizes strong privacy: analysis runs on secure servers without storing letters, and generation uses paid APIs with GDPR-aligned safeguards. CoverSentry currently supports English and offers practical guidance to make AI-assisted letters sound authentic.

Essay Checker

Essay Checker

0
0
6
1

EssayChecker.io is an **AI-powered writing and evaluation tool** specifically designed to help students, particularly those preparing for English proficiency tests like IELTS and PTE, refine their written work. It functions as a comprehensive writing lab, utilizing advanced AI to instantly assess essays for critical criteria such as grammar, vocabulary, coherence, task achievement, and overall quality. The platform provides detailed, personalized feedback and an estimated band or score, enabling users to efficiently identify weaknesses and focus their practice for maximum improvement. It aims to offer the objective, consistent feedback necessary for academic success.

Essay Checker

Essay Checker

0
0
6
1

EssayChecker.io is an **AI-powered writing and evaluation tool** specifically designed to help students, particularly those preparing for English proficiency tests like IELTS and PTE, refine their written work. It functions as a comprehensive writing lab, utilizing advanced AI to instantly assess essays for critical criteria such as grammar, vocabulary, coherence, task achievement, and overall quality. The platform provides detailed, personalized feedback and an estimated band or score, enabling users to efficiently identify weaknesses and focus their practice for maximum improvement. It aims to offer the objective, consistent feedback necessary for academic success.

Essay Checker

Essay Checker

0
0
6
1

EssayChecker.io is an **AI-powered writing and evaluation tool** specifically designed to help students, particularly those preparing for English proficiency tests like IELTS and PTE, refine their written work. It functions as a comprehensive writing lab, utilizing advanced AI to instantly assess essays for critical criteria such as grammar, vocabulary, coherence, task achievement, and overall quality. The platform provides detailed, personalized feedback and an estimated band or score, enabling users to efficiently identify weaknesses and focus their practice for maximum improvement. It aims to offer the objective, consistent feedback necessary for academic success.

Editorial Note

This page was researched and written by the ATB Editorial Team. Our team researches each AI tool by reviewing its official website, testing features, exploring real use cases, and considering user feedback. Every page is fact-checked and regularly updated to ensure the information stays accurate, neutral, and useful for our readers.

If you have any suggestions or questions, email us at hello@aitoolbook.ai