Best AI Detectors—Top Detection Tools on the Market

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Danielle McLeod

Danielle McLeod is a highly qualified secondary English Language Arts Instructor who brings a diverse educational background to her classroom. With degrees in science, English, and literacy, she has worked to create cross-curricular materials to bridge learning gaps and help students focus on effective writing and speech techniques. Currently working as a dual credit technical writing instructor at a Career and Technical Education Center, her curriculum development surrounds student focus on effective communication for future career choices.

AI detectors are unique systems engineered to discern AI-generated content by analyzing patterns and characteristics. Amid growing concerns over authenticity and misinformation, they act as the guardians of credibility, meticulously combing through content to ensure its originality.

Recognizing the high stakes, sectors ranging from academia to publishing and online content creation increasingly rely on these sophisticated tools. AI detectors not only protect intellectual property rights but also play a crucial role in maintaining the integrity of content, thereby ensuring that the information disseminated is genuine and reliable.

This article guides you through the dynamic world of AI detectors, starting with a comprehensive review of the top tools currently available on the market. We’ll delve into their unique features, investigate how they function, and discuss why these innovative tools warrant your attention. To help you make an informed decision, we will also disclose criteria for evaluating AI detectors.

If you are as passionate about authenticity as we are, this is a must-read! So buckle up, and let’s start this intriguing journey into the realm of AI detectors!

What Are the Top AI Detectors? Our Detailed Review

The following are some of the best AI detection software out there: 


Undetectable AI

Undetectable AI is an advanced plagiarism detection tool designed to be extremely tough to circumvent. However, don’t rush to declare this as the best tool just yet. It was specifically developed to identify AI-generated content, aiming to further “humanize” the tone for users aiming to evade conventional detection software.

Visit Undetectable

Highlights and key features:

  • Offers robust detection algorithms designed to minimize the chances of evasion
  • Easy copy and paste format up to 10,000 character lengths at a time
  • Provides detailed analysis and reports
  • Employs semantic analysis and contextual understanding to enhance detection accuracy

Price: Pricing varies depending on usage and subscription plans.



  • Employs advanced algorithms and techniques
  • Provides specific AI website detection
  • Incredibly quick and accurate
  • Detailed pricing information and specific features may vary based on the provider
  • Designed to humanize AI-generated materials to pass as your own, raising ethical issues 

Who it’s for: Academics, researchers, writers, and businesses

Winston AI

Gowinston AI

Winston AI is an AI-powered plagiarism detection tool designed to help educators, researchers, and content creators identify instances of plagiarism in written content.

Visit Winston AI

Highlights and key features:

  • Offers advanced plagiarism detection algorithms using easy copy-and-paste formatting
  • Provides a free version with limited but highly accurate capabilities
  • Integrates with various document formats
  • Has customizable settings for specific needs
  • Offers a Chrome extension
  • Has real-time scanning capabilities

Price: Pricing varies depending on usage and subscription plans. A free version is offered. 



  • High accuracy
  • Subscription plans offer plagiarism and readability scores 
  • Flexible pricing for variable needs
  • Pricing might be a bit steep for individual users or small organizations


Originality AI

Originality.AI is an AI-driven plagiarism detection tool that detects similarities in textual content based on wording and patterns of organization common to AI content creators. 

Visit Originality.AI

Highlights and key features: 

  • Utilizes advanced machine learning algorithms for plagiarism detection
  • Useful for full website scanning to check for accuracy and integrity
  • Team management platform utilization options and organization-wide verification
  • Provides real-time fact-checking
  • Offers customizable settings
  • Supports multiple file formats

Price: Pricing typically varies based on usage and subscription plans.



  • Provides detailed reports
  • Real-time checking for quick responses and accuracy checks
  • Designed for large business models for team management 
  • Pricing might not be suitable for all users
  • Accuracy in detecting AI-generated materials is subject to fast-paced updates and may be lacking
  • Not designed for individual users

Who it’s for: Academics, researchers, writers, editors, and businesses



GLTR is developed to detect generated or unnatural text, especially when identifying text generated by language models like GPT. It was one of the earliest detection tools, and its software features have been used in subsequent AI detection uses. 

Visit GLTR

Highlights and key features:

  • Analyzes text for patterns indicative of generated content
  • Works as language model testing room
  • Offers histograms of aggravated information
  • Provides color-coded visualizations for easy interpretation
  • Offers insights into the likelihood of text being human-generated

Price: It’s free to use.



  • Offers color-coded highlights for quick and easy human vs. AI-generated materials
  • May not be as comprehensive as other dedicated plagiarism detection tools and is somewhat outdated
  • Requires independent knowledge of the software and is not user-friendly

Who it’s for: Researchers, journalists, developers



Sapling AI helps identify instances of plagiarism and ensure content originality across various types of content, including texts, documents, and academic papers.

Visit Sapling

Highlights and key features:

  • Utilizes advanced machine learning algorithms and natural language processing techniques
  • Offers customizable settings
  • Multi-lingual spelling and grammar checks available
  • Offers integration with existing platforms—such as Chrome, Microsoft Word, and Outlook

Price: Pricing typically varies based on usage and subscription plans, with options tailored to individual users, educational institutions, and businesses. A free version is available.



  • Offers advanced detection capabilities across various content formats
  • Provides detailed reports and analysis
  • Mitli-language and dialect support
  • Pricing and specific features may vary based on the provider, and advanced features may require higher-tier subscriptions

Who it’s for: Academics, researchers, writers, and businesses

Content at Scale

Content At Scale

Content at Scale AI identifies instances of plagiarism in various types of content, including text, images, and code. But be aware of yet another ethical disclaimer: this tool was created specifically to help evade other AI detection software and strives to humanize your AI-created content so that it passes off as original work.

Visit Content at Scale

Highlights and key features:

  • Utilizes advanced algorithms and machine learning techniques
  • Supports multiple content formats
  • Offers integration with various platforms
  • Quick turnaround for AI detection and rewording for human voice

Price: Pricing typically depends on usage and subscription plans, with options tailored to individual users, educational institutions, and businesses.



  • Offers comprehensive detection across various content types
  • Employs advanced algorithms for accuracy and provides detailed reports and analysis
  • Human-like rewording processes to avoid robotic language
  • Subscriptions are very expensive

Who it’s for: Best for academics, researchers, writers, and businesses



Copyleaks offers a range of tools to identify plagiarism in various content types, including text, images, and code.

Visit Copyleaks

Highlights and key features:

  • Offers multiple detection modes (text, file, website)
  • Supports multiple languages
  • Plagiarism and AI detection with code links to determine sources
  • AI grader integration for standardized testing options
  • Integrates with various platforms (e.g., LMS, CMS)
  • Provides comprehensive reports

Price: Pricing typically depends on usage and subscription plans, with options for content, plagiarism, or bundled options. 



  • Has versatile detection modes and integration options
  • Has options for multiple needs, including detection, grading, and proofreading
  • Pricing might be a concern for some users, especially for high-volume usage.

Who it’s for: Educators, students, content creators, and businesses

What Is an AI-Generated Content?

AI-generated content refers to text, images, or other types of content created by artificial intelligence technologies. These technologies have advanced significantly, evolving from using predefined patterns to learning from vast datasets, thus creating highly realistic content.

However, AI-generated content brings challenges. It often crosses the line between human and machine authorship, leading to ethical concerns about attribution and copyright. Misuse of AI-generated content can spread misinformation and manipulate people. 

As a technological writing instructor, I have witnessed various problematic uses of AI technology, both with the programs and student behaviors. When AI content creation replaces the human voice, it is often incorrect in many of its references and definitions. When asked to clarify or provide context, it will admit to “being mistaken” about the “facts” it shared. 

Why Use an AI Detector?

AI detectors serve as indispensable tools in various fields for several reasons:

  • Detecting plagiarism: AI detectors identify instances of plagiarism in written content, ensuring the integrity and originality of work across academia, publishing, journalism, and business sectors.
  • Ensuring content originality: AI detectors help users verify that their content is original and not copied from other sources.
  • Improving research integrity: In academic and scientific research, AI detectors play a crucial role in upholding research integrity by identifying academic misconduct, such as plagiarism and data fabrication.
  • Maintaining brand reputation: Using AI detectors ensures that content remains original and plagiarism-free for businesses and organizations. This includes advertisements, imagery, and content creation. 

What Are the Criteria to Look for When Evaluating AI Detectors?

When selecting an AI detector, choose the best tool for your specific needs and requirements by evaluating them based on the following:


With the rise of AI-generated content, AI detectors must accurately distinguish between content generated by AI creators and content created by humans.

Speed and Efficiency of Analysis

Users often require quick turnaround times for content analysis. AI detectors should be capable of analyzing large volumes of content efficiently without compromising accuracy.

User Interface and Ease of Use

The user interface of AI detectors should allow users to navigate through the software, configure settings, and interpret analysis results easily and without confusion.

Privacy and Security Features

Since AI detectors handle sensitive data, such as copyrighted materials and confidential documents, dependable privacy and security features are important to check for. This includes data encryption, secure storage practices, and compliance with privacy regulations.

Integration Capabilities with Other Software or Platforms

Integrating existing software or platforms, such as learning management systems (LMS) for educational institutions or content management systems (CMS) for businesses, enhances workflow efficiency and usability.

What Are the Challenges and Limitations of AI Detectors?

While AI detection is excellent in recognizing plagiarism, its accuracy is not as robust when determining AI content creation. 

Advancement of AI models

As AI technology evolves, so do the capabilities of AI-generated content. AI models become more sophisticated and capable of mimicking human-like characteristics, making it challenging for detection software to distinguish between human and AI content.

Adversarial Attacks

Adversarial attacks are defined as intentionally manipulating AI-generated content to deceive detection systems. Attackers can employ techniques such as adding subtle alterations to fool the detection software, leading to false classifications.

Lack of Training Data 

AI detection software relies on training data to learn patterns and characteristics of AI-generated content. If the training data is insufficient or biased, the software may struggle to generalize accurately to new and evolving AI models, resulting in lower detection accuracy.

Rapidly Evolving AI Techniques

The field of AI is dynamic, with new techniques and models emerging frequently. AI detection software may lag behind these advancements and struggle to keep up with the latest AI-generated content.

Contextual Challenges

Identifying AI-generated content becomes more difficult when it is strategically embedded within human-generated content or when sophisticated language models generate content that closely resembles human writing style.

Adaptations to Evade Detection

As AI detection software improves, creators of AI-generated content may adapt their methods to evade detection. This ongoing cycle of improvement and evasion creates a constant challenge for detection software to maintain high accuracy.


AI detectors play a critical role in maintaining the integrity and authenticity of content in the digital age despite the challenges of inaccuracy they include. They provide a tool for identifying AI-generated content, detecting plagiarism, and upholding ethical standards in content creation. Combined with human editing and awareness, they can quickly bring to light areas of concern to save time when ethical questions arise. 

To stay ahead in this rapidly evolving landscape, you must stay informed about advancements in AI detection technologies and their applications. By keeping up with the latest developments, you can make well-informed decisions about the responsible use of AI-generated tools.