GPTZero Review 2023: Is This AI Detection Tool Worth It?

Updated: November 29, 2023

Written and edited by Eddy Ballesteros CEO & AI Expert.

GPTZero Review

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Do you have concerns about AI-generated content? Are you worried that someone may be using AI to plagiarize your work or to create misleading content?

If so, you may be interested in using an AI content detection tool like GPTZero. This AI detector is a freemium web-based tool that can help you identify AI-generated text.

But how do you know if it's worth it and if it works? In this blog post, we'll do a complete GPTZero review and overview its capabilities, features, and real-life performance.

As well as explore its limitations and alternatives to help you detect large language model output.

Key Takeaways:

  • GPTZero is one of the most popular AI content detection tools for educators.
  • You can use it to see what was written by AI and receive academic honesty from research papers
  • While it can produce false positives, it still can become helpful to learn about AI plagiarism
  • You can use it to detect most AI writing software output.

GPTZero Overview

GPTZero logo box
  • Detect AI-written text quickly
  • Perfect for teachers
  • Scan through content based on a scoring model

Eddy's Personal GPTZero Summary:

GPTZero compares the analyzed text to a large human-written and AI-generated text dataset. It then uses a machine learning algorithm to identify common patterns and characteristics in AI-generated text.

GPTZero can detect AI-generated content in various settings, including online and academic content, marketing copy, and creative writing.

It is a valuable tool for educators, researchers, and anyone else who needs to be able to identify AI-generated content.



  • Free to use
  • Easy to use
  • Accurate at detecting AI-written content than most other tools
  • Teachers and educators love using it
  •  Not perfect at detecting AI-generated content, especially long-form content
  • May generate false positives
  • Still under development
  • Does not fully detect AI plagiarism
  • Detect only a limited number of words on the free version

What Is GPTZero?

GPTZero can detect AI-written content on various levels to identify AI's influence on sentences, paragraphs, and documents.

It has been trained on various AI language models, including human-written and AI-generated text, focusing on English prose.


This training enables GPTZero to detect content generated by various AI language models, such as ChatGPT, and differentiate AI-generated content from that authored by humans by analyzing linguistic nuances and subtleties in syntax.

The model behind GPTZero offers the assurance of avoiding false positives and detecting AI-generated articles correctly.

As a result, GPTZero is instrumental in sustaining an environment of honesty and accuracy in written material, especially when it comes to content generated by AI content creation tools.

If you have tested many AI detection tools, you probably know that human-written content is important.

How To Get Started With GPTZero

Accessing GPTZero is very simple, as it can be accessed online without needing an account.

Users can quickly check the authenticity of the content. They must copy-paste text or upload a file in PDF or doc format. GPTZero then returns results indicating whether the content is AI, human, or mixed.

GPTZero box

This streamlined process makes it easy for users to quickly determine the origin of content, allowing them to make informed decisions about its credibility.

Regarding pricing, GPTZero offers a free version with a character limit of 5,000 per input/document and a paid version with an enhanced detector threshold tailored for educators.

Evaluating GPTZero's AI Detection Capability

Evaluating GPTZero’s AI detection capability involves examining its performance in real-life examples, demonstrating its accuracy and effectiveness in detecting AI-generated content.

The paramount considerations for an AI content detection tool are accuracy and reliability, as it needs to accurately differentiate between AI-generated and human-authored content while consistently delivering dependable results to affirm its efficacy.

A minimum of 250 characters is required to evaluate GPTZero’s detection performance comprehensively.

Users can understand its detection capabilities by testing GPTZero on various texts to determine whether it meets their requirements.

GPTZero in Real-Life Scenarios

GPTZero has demonstrated its versatility and potential impact across academia, journalism, and e-commerce industries.

GPTZero supports academic integrity in academic settings by providing educators with a tool to review students’ assignments and research papers for AI-generated content.

GPTZero Educators

In journalism and media, GPTZero safeguards the authenticity of news sources by detecting and flagging artificial intelligence outputs.

Meanwhile, in e-commerce, GPTZero enhances the trustworthiness of product reviews by detecting and emphasizing AI-generated reviews, ensuring customers make informed purchase decisions based on genuine feedback.

GPTZero Features

GPTZero offers advanced algorithms and machine-learning techniques to differentiate between human-generated and Chatgpt written content.

Let's review the key features that this robust solution offers.

Detect Machine Generated Content

The central core feature of GPTZero is to find the difference between AI and human-generated content using a mix of algorithms and patterns.

GPTZERO Dashboard

It can easily detect AI from ChatGPT, Bard, and LLaMa models that most people are using. This is the best way to know which are human-written articles.

Origin by GPTZero

GptZero's Chrome extension allows you to scan the internet and highlight any text you want to check whether it was written with AI.

Not only that, you can also use this in Google Docs to create a writing report for your editors or education program.

As you highlight text, Origin will provide you with an AI probability score to see how much AI wrote a text.

You can also review your own sentences to ensure they aren't being seen as AI-generated if you use an AI writing tool after editing.

Human Writing Report

This report is designed to help writers prove that their content is human-generated, which can be helpful in various settings, such as academic writing, journalism, and content marketing.

For example, if you work with a blog writing service and want to check their human writing score, you can do so with GPTZero.

The Human Writing Report analyzes a piece of writing for various factors, including writing activity timeline, document lifespan, most extensive copy and pastes, average revision durations, and accounts for cases with multiple editors.

GPTZero writing report

If the report determines that the writing is 100% human-generated, it will generate a certificate of human authenticity that the writer can share with others.

The Human Writing Report is a valuable tool for writers who want to protect their work from being plagiarized or used without their consent.

It is also a valuable tool for educators, researchers, and editors who need to be able to verify that content is human-generated.

Here are some specific examples of how the Human Writing Report can be used:

  • Students: Students can use the Human Writing Report to prove to their teachers that their assignments are their own work. This can be helpful in cases where a teacher may suspect that a student has used AI to generate their assignment.
  • Journalists: Journalists can use the Human Writing Report to prove to their editors that their articles are based on original reporting and have not been plagiarized. This can be especially important for journalists who are reporting on sensitive topics.
  • Content marketers: Content marketers can use the Human Writing Report to prove to their clients that their content is high-quality and original. This can help to build trust with clients and improve the reputation of the content marketer.

Overall, the Human Writing Report is a powerful content detection tool that can help writers protect their work and ensure their audience knows they are reading authentic, human-generated content.

AI Detection API Integration

GPTZero's AI detection API is a powerful tool that can be used to integrate AI content detection into your applications.

This can be useful for a variety of purposes, such as:

  • Starting an AI content detection service: You can use the GPTZero API to build your own AI content detection service and offer it to other businesses and individuals.
  • Checking in-house writers: Businesses can use the GPTZero API to check their in-house writers' work for AI generation. This can help ensure that the content produced is original and authentic.
  • Starting an AI side hustle: You can use the GPTZero API to start an AI side hustle, such as offering AI content detection services or developing AI content detection tools.

Sign up for an API subscription plan and get your API key. Once you have your API key, you can visit the API docs to learn how to use the API in your own applications.

Canvas Integration

GPTZero has partnered with K16 Solutions to create GPTZero Scaffold, the first AI analytics dashboard integrated with Canvas.

Here's a video explaining this in more detail by Scaffold.

GPTZero Scaffold allows educators to scan and analyze all student-submitted content for potential AI generation, including drafts, comments, and discussion posts.

Microsoft Word Add-on

You can detect AI content inside Microsoft Word, making it easier for educators to check their student's work.

Here are the Add-in capabilities

  • Can read and make changes to your document
  • Can send data over the Internet

GPTZero Pricing

GPTZero is free for up to 5,000 characters of text per month. For users who need to check more text or who need access to additional features, GPTZero offers two paid subscription plans:

  • Basic: $9.99 per month for 50,000 characters of text per month and access to the GPTZero Chrome extension
  • Pro: $19.99 per month for 250,000 characters of text per month and access to the GPTZero Chrome extension

The GPTZero API is a powerful tool for developers who must integrate AI content detection into their applications. It allows developers to check text for AI generation directly from their own code.

The developer API plan is free for a limited number of times.

Note: GPTZero also offers a free Chrome extension that allows users to check text for AI generation directly from their web browser.

The AI Chrome extension is a good option for users who only need to check occasional texts for AI generation.

What Are The Limitations and Challenges of GPTZero

Despite its advanced features, GPTZero is not an AI machine without limitations and challenges, including:

  • Adapting to rapid AI evolution
  • Producing false positives/negatives
  • Dependence on computational power
  • Language/context understanding limitations

For instance, the intricate algorithms employed by GPTZero necessitate substantial computational power, which could restrict its use in environments with limited resources or sluggish processing speeds.

Users should be aware of these limitations when considering GPTZero as their AI detection tool of choice.

It also does not offer plagiarism detection tools, so you'll want to pair this with tools like Grammarly.

GPTZero Alternatives

While GPTZero is a promising AI detection tool, exploring alternative solutions is critical to finding the best fit for your needs. Some potential alternatives to GPTZero include:

  • Originality AI
  • Turnitin AI Detection Tool
  • Contentatscale AI Detector
  • HuggingFace AI Detector
  • Copyleaks AI Detector
Content At Scale

Content At Scale is an influential blog writing tool that can generate +2000 word articles in minutes. With just a few clicks, you can turn ideas into engaging blog posts full of interesting facts, statistics, and research.

We earn a commission if you make a purchase, at no additional cost to you.
AI Detection Tool : AI Content Detector
4.0 can scan and detect AI-generated text instantly. You can also use it to check an entire website with a click of a button for AI content.

We earn a commission if you make a purchase, at no additional cost to you.

Each tool possesses unique features and capabilities. Researching and comparing them is crucial to finding the one that best aligns with your specific requirements and preferences.

Final Thoughts About GPTZero

GPTZero is a promising AI detection tool with high accuracy and a user-friendly interface, making it a valuable resource for ensuring content authenticity.

However, like any AI tool, considerations must be given to its limitations, such as its inability to recognize certain types of AI-generated content and potential inappropriateness for all kinds of content verification tasks.

By understanding the benefits and drawbacks of GPTZero, users can make an informed decision about whether it’s the right tool for their needs.

FAQs For This GPTZero Review

Is GPT Zero the best AI detector?

Based on its corpus of human-written and AI-generated text, GPTZero is an effective AI detector for both sentence and paragraph-level analysis. It's one of the market's leading AI content detection tools, making it a reliable choice.

How effective is GPTZero?

GPTZero has an impressive accuracy rate of 98% when detecting text's origin, whether created by AI or written by a human.

Its performance further increases when examining larger pieces of text, although it may still produce errors due to its limited knowledge. AI detectors like GPTzero could be better, but they will offer a detailed analysis.

It's essential to test GPTZero independently and decipher the human-written text.

What are the advantages of GPT Zero?

GPT Zero is a groundbreaking tool that helps content creators check the authenticity of their content by detecting machine-generated text using syntax and sentence length.

It provides an efficient and secure way for writers to verify the accuracy of their work, eliminating the risk of inadvertently creating AI-generated content.

GPTZero is a powerful tool that detects machine-generated text and ensures original and accurate content. It is an invaluable tool for writers who want to ensure that their work is not plagiarized or otherwise compromised

How Does GPTZero Work?

GPTZero is an advanced AI detection tool that identifies and distinguishes between human-generated and AI-generated content, ensuring trust and authenticity in digital media.

It scans through large language models such as GPT-4 and other AI models.

How do I access and use GPTZero?

GPTZero is accessible online without registration, enabling users to quickly and easily verify the authenticity of text or documents by copying-pasting or uploading PDF or doc files.

Who made GPTzero?

Edward Tian is the CEO of this program to combat AI tools such as ChatGPT written content. His entire team will spend hours making this product even better.

Does GPTZero only detect ChatGPT outputs?

No, GPTzero can detect AI-written articles from other large language models.

About the Author

Eddy Ballesteros

AI & Marketing Nerd

Eddy is an AI, SEO, and personal finance blogger who uses and tests products to help others improve their lives through AI and financial literacy. With years of experience in online business, he deeply understands the latest AI and SEO trends. Eddy is also well-knowledged in personal finance and committed to sharing his knowledge and expertise with his readers.

Have Something To Share With Eddy? Comment Below.

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