The 5 Best AI Detectors For Teachers to Improve Academic Integrity in 2024

With the rapid advancement of artificial intelligence technologies, educators face new challenges in maintaining academic integrity with 89% of students admitting to using AI to complete homework.

AI tools are increasingly used by students for generating essays and assignments, making it difficult for teachers to differentiate between student-created and AI-generated content.

This is where AI detectors prove invaluable.

These clever tools are designed to help educators identify plagiarized and AI-generated submissions, significantly reducing the time spent on manual verification.

Given the variety, it can be difficult to know which detectors are actually effective and which ones to choose.

In this article, we have you covered.

We will review the top 5 AI detectors for teachers. We’ll explore their features, and accuracy to help you choose the most effective AI detector for your classroom needs.

Let’s take a closer look at how these tools can support you in upholding academic standards.

Best AI Detectors for Teachers Compared

Starting with the pricing, it’s important to consider the cost of each AI detection tool when making your decision.

Here is a comparison of the costs associated with the top 5 AI detection tools, helping you choose the most cost-effective option for your classroom needs.

comparison of the costs associated with the top 5 AI detection tools

1. Undetectable AI – Best For Teachers

undetectable ai detector and humanizer homepage

Undetectable AI offers teachers a dependable method to ensure the originality of student work.

This tool excels at differentiating between human-written content and text generated by widely-used AI programs such as ChatGPT and Claude.

It’s especially valuable for educators seeking a reliable way to quickly verify assignments.

With one click, you can check if a text is detected as AI by multiple detectors at once, including Crossplag, GPTZero, Sapling, and more.

This high level of precision has earned Undetectable AI the top spot in Forbes’ AI detector rankings, making it a trusted resource in classrooms focused on upholding academic integrity.

Key Features:

  • Broad Compatibility: Undetectable AI supports a variety of AI writing tools, including GPT-3, GPT-4, Claude, Bard, and others, offering wide-ranging detection capabilities.
  • User-Friendly Design: With a straightforward interface, teachers can quickly paste text into the system and receive immediate results without needing to register or enter personal details.
  • High-Capacity Processing: It can handle up to 10,000 characters at once, ideal for checking longer documents efficiently without losing accuracy.
  • In-depth Analysis: The tool goes beyond simple detection, analyzing the text’s structure, syntax, and style for a comprehensive assessment.


  • Undetectable AI detection tool is free to use.

Undetectable AI is a favorite among educators wanting to maintain academic integrity.

With its robust detection features, and strong support from a large user community and numerous industry accolades, it’s an essential tool for verifying the authenticity of student work.

2. Turnitin

Turnitin, a long-trusted resource in academic settings

Turnitin, a long-trusted resource in academic settings for detecting plagiarism, has expanded its capabilities with a feature specifically designed to identify AI-generated content.

Teachers can now upload their students’ work to Turnitin as they typically would, and the new AI functionality will assess the submissions for both plagiarized and AI-created text.

Useful Features:

  • AI Writing Detection: Utilizes advanced algorithms to differentiate between human-written text and content generated by AI, particularly from models like GPT-3, GPT-3.5, and GPT-4.
  • Perplexity Scoring: Breaks down submissions into segments and sentences, scoring each from 0 (completely human-generated) to 1 (fully AI-generated), with an average score providing an overall prediction.
  • Integration with LMS: Connects with Learning Management Systems such as Blackboard, allowing educators to maintain a streamlined workflow in familiar digital environments.


  • Accessibility: The tool is tailored primarily for institutional use, not for individual teachers, requiring discussions with sales representatives for access.


Pricing details are sadly not readily disclosed and require direct inquiry, which might limit accessibility for some institutions or educators.

Turnitin operates on a subscription model typically adopted by educational institutions rather than individual users.

3. Originality for teachers homepage is a cutting-edge AI-writing platform that provides an AI content identification tool and a plagiarism detection feature.

With its advanced algorithms and comprehensive scanning capabilities, equips teachers with the tools needed to ensure the integrity of their work.

Useful Features:

  • Exceptional Accuracy: boasts remarkable precision in discerning human and AI-generated writing, ensuring reliable identification.
  • Robust Plagiarism Detection: With powerful algorithms, offers comprehensive plagiarism detection capabilities, enabling thorough scrutiny of submitted content.


  • Inability to Detect Direct Copy-Paste: may struggle to identify content directly copied and pasted from sources like Wikipedia, potentially leading to an oversight in plagiarism detection.
  • Vulnerability to Third-Party Paraphrasing Tools: The system is susceptible to being bypassed by third-party paraphrasing tools such as Quilbot, compromising its effectiveness in identifying AI-generated content.

Pricing: offers flexible pricing starting at $30 for a one-time pay-as-you-go option with 3000 credits or a base subscription at $14.95 per month, providing 2000 credits and automatic renewal.

4. Crossplag

crossplag homepage for teachers

Crossplag is an AI plagiarism detector specifically designed for educational institutions.

It offers a user-friendly interface and a comprehensive set of features designed to help teachers easily navigate through and evaluate student submissions.

Useful Features:

  • Generous Word Limit Increase: Users signing up for free receive 10 credits, allowing them to check texts up to 3,000 words, a significant upgrade from the previous 1,000-word limit.
  • Enhanced Text Analysis: Recent updates have improved Crossplag’s capability to analyze text deeply, offering more precise results in detecting AI-generated content.


  • Language Limitation for AI Detection: The AI detector only supports English, which may not suffice for educators dealing with multilingual content.
  • Signup Requirement: Access to the tool requires registration, which can be a barrier for quick or casual usage.
  • Mixed User Reviews: Crossplag has received mixed feedback, with a rating of 2.9 out of 5 on Trustpilot, indicating some user dissatisfaction.


  • Free Plan: Offers free AI detection with initial credits.
  • Institutions need to contact Crossplag for customized pricing options.

5. Sapling


Developed by experts from Stanford, Google, and UC Berkeley, Sapling offers a straightforward AI detection tool, recognizing outputs from models like GPT-3 and GPT-4.

Useful Features:

  • Direct Text Input: Simplifying its use, Sapling allows users to paste text directly into the tool for instant analysis, eliminating any setup or registration barriers.
  • No-Cost Initial Use: The tool is freely available for initial checks up to 2,000 characters, catering to users with occasional detection needs.


  • Restricted Input Options: Unlike some other tools, Sapling does not support analyzing content from URLs or uploaded files.
  • Focused on AI Detection: It does not offer plagiarism detection, which may be a drawback for teachers looking for a more comprehensive two-in-one content analysis tool.


  • Free Service: Available for content up to 2,000 characters without charge.
  • Extended Use Subscription: For more extensive needs, users can opt for a subscription at $25 per month, for text analysis up to 8,000 characters

How Can AI Detectors Work for Teachers? Best Use Cases

In a recent survey over 56% of college students said that they have used AI on assignments or exams.

over 54% of college students said that they have used AI

As students continue to access advanced artificial intelligence tools to assist with their work, educators are faced with new challenges in ensuring academic honesty.

At a time where digital resources and AI tools are at every student’s fingertips and 60% of educators are also using AI in their classrooms, teachers must employ effective strategies to prevent plagiarism.


Let’s explore the main areas where teachers can benefit from the use of AI detectors, ensuring that the focus remains on genuine student learning and achievement.

Enhancing Academic Integrity

AI detectors are useful for maintaining academic integrity in their classrooms.

These tools scan student submissions using advanced algorithms to check against vast databases of published works and previous student papers, detecting any signs of plagiarism.

This process naturally verifies the originality of the work submitted but also helps instill good writing practices in students by clearly identifying instances of copying.

Improving Assessment and Grading Efficiency

AI detectors also streamline the assessment and grading process.

Traditionally, teachers spend a lot of time manually checking assignments for plagiarism, a task that can be exhaustive and prone to human error.

By automating this process, AI tools quickly spot potential plagiarism and provide detailed reports on the originality of each student’s work.

This efficiency enables teachers to focus more on the content and quality of submissions, offering thorough feedback and assessing students’ understanding more effectively.

This not only enhances the learning experience but also ensures more precise evaluations.

Final Thoughts

AI detectors offer educators powerful tools for upholding academic integrity and fostering genuine learning experiences.

Beyond catching plagiarism, these tools educate students about the importance of originality and prepare them for ethical challenges in their future endeavors.

By saving time on manual checking, teachers can focus on providing personalized feedback and creating engaging learning environments.

Moreover, the integration of AI detectors helps institutions maintain their reputation for academic excellence.

Embracing these tools like Undetectable AI supports the educational mission of promoting integrity, critical thinking, and lifelong learning, ensuring students are well-prepared for success in the modern world.

Try it out for free today to assess the originality of your students’ work and promote important critical thinking and writing skills.

Undetectable AI (TM)