This gives rise to what researchers call the threat of ‘AI plagiarism’: <\/p>\n\n\n\n
A growing number of students and professionals are using AI to generate content that may be subject to plagiarism penalties.<\/p>\n\n\n\n
In this article you’ll discover:<\/p>\n\n\n\n
- \n
- How to check for AI plagiarism<\/li>\n\n\n\n
- Whether or not AI is subject to plagiarism laws<\/li>\n\n\n\n
- The best AI plagiarism checker tools available in 2024<\/li>\n<\/ul>\n\n\n\n
Let’s dive right in.<\/p>\n\n\n\n
\n\n\n\nKey Takeaways<\/strong><\/p>\n\n\n\n
- \n
- AI writing is often mistaken for human, even by experts<\/li>\n<\/ul>\n\n\n\n
<\/p>\n\n\n\n
- \n
- Schools now penalize undisclosed AI-assisted work<\/li>\n<\/ul>\n\n\n\n
<\/p>\n\n\n\n
- \n
- Most plagiarism tools miss AI-generated content<\/li>\n<\/ul>\n\n\n\n
<\/p>\n\n\n\n
- \n
- Undetectable AI helps rewrite and avoid detection<\/li>\n<\/ul>\n\n\n\n
<\/p>\n\n\n\n
- \n
- AI detectors are essential for ethical content use<\/li>\n<\/ul>\n\n\n\n
<\/p>\n\n\n\n
\n\n\n\nWhat Is Plagiarism?<\/h2>\n\n\n\n
According to APA Style<\/a>, \u2018plagiarism is the act of presenting the words, ideas, or images of another as one\u2019s own\u2019 \u2014 and whether deliberate or not, it violates the ethical standards of scholarship.<\/p>\n\n\n\n
Merriam-Webster defines plagiarism<\/a> simply as \u2018to steal and pass off the ideas or words of another as one\u2019s own.\u2019<\/p>\n\n\n\n
\n
“to steal and pass off (the ideas or words of another) as one’s own: <\/strong>use (another’s production) without crediting the source.”<\/p>\n<\/blockquote>\n\n\n\n
In plain English, this means that plagiarism is representing another person’s work as your own.<\/p>\n\n\n\n
This extends beyond human authorship: submitting AI-generated text without disclosure can also constitute plagiarism.<\/p>\n\n\n\n
Is Plagiarism Illegal?<\/h2>\n\n\n\n
Plagiarism is not a crime under criminal law<\/a>. However, it may lead to the following results that may be pursued in court:<\/p>\n\n\n\n
- \n
- Copyright infringements. <\/strong>In short: You make money out of someone else’s original work (where they should make money out of).<\/li>\n\n\n\n
- Breach of contract. <\/strong>In short: An employer hires you to create original work. Yet you deliver plagiarized work.<\/li>\n<\/ol>\n\n\n\n
According to the Citadel, copyright infringements can lead to jail time in severe cases. However, breach of contract is typically limited to monetary punishment, according to Cornell Law School.<\/a><\/p>\n\n\n\n
Is Plagiarism A Crime?<\/h2>\n\n\n\n
The act of plagiarism itself is not a criminal offense.<\/p>\n\n\n\n
Plagiarism itself isn\u2019t a crime, but copyright infringement and breach of contract can lead to lawsuits, fines, or even jail time in extreme cases.<\/p>\n\n\n\n
Attributing sources appropriately and respecting others’ intellectual property rights is essential. It’s the morally right thing to do, so it’s good karma<\/em> (as Steve Jobs would say).<\/p>\n\n\n\n
Avoiding plagiarism is especially important as a student:<\/p>\n\n\n\n
What Are The Consequences Of Plagiarism As A Student?<\/h2>\n\n\n
\n![\"Woman](\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/ai-plagiarism-001-1024x683.jpg\")
<\/picture><\/figure><\/div>\n\n\nTypically, plagiarism as a student is not pursued in court but may lead to internal punishment. Such as:<\/p>\n\n\n\n
- \n
- Failing an assignment<\/li>\n\n\n\n
- Failing a course<\/li>\n\n\n\n
- Removal from a major<\/li>\n\n\n\n
- School suspension<\/li>\n<\/ul>\n\n\n\n
All of these situations can bring severe and long-term professional consequences, that may be difficult to recover from as a younger adult.<\/p>\n\n\n\n
While most students who use plagiarized content are aware of their behaviors – some may not. It turns out that using AI as a help for essays and papers may also result in plagiarism.<\/p>\n\n\n\n
As of 2025<\/a>, many universities have explicitly banned undisclosed AI use in coursework. Penalties can now include assignment failure, suspension, or expulsion.<\/p>\n\n\n\n
Is Using AI Plagiarism?<\/h2>\n\n\n\n
A recent article from Harvard University<\/a> asked the following question:<\/p>\n\n\n\n
\n
“AI creates content by drawing on a large library of information that\u2019s already been created, but is it plagiarizing?”<\/p>\n<\/blockquote>\n\n\n\n
Large Language Models today, like GPT-4 Turbo and Claude 3, generate text based on massive datasets that include licensed material, public domain sources, and synthetic data. <\/p>\n\n\n\n
While their outputs are usually unique, they may still overlap with copyrighted or proprietary content, which is why many turn to AI detection tools<\/a> to verify originality.<\/p>\n\n\n\n
Researchers often describe LLMs as \u201cstochastic parrots\u201d\u2014systems that assemble logical sentences without true understanding. <\/p>\n\n\n\n
If these sentences resemble original authored material, or training data that comes from protected sources, the results can border on AI plagiarism<\/a>, even if unintentionally. <\/p>\n\n\n\n
To mitigate this, some writers use tools to humanize AI content<\/a> before publishing<\/p>\n\n\n\n
Does Chat-GPT Plagiarize?<\/h2>\n\n\n\n
Is using AI plagiarism? It depends on how the text is produced and disclosed.<\/p>\n\n\n\n
Modern large language models are trained on a mixture of publicly available<\/strong> and licensed<\/strong> data<\/a> (plus synthetic data and human feedback), i.e., hundreds of billions of words<\/strong> rather than a fixed \u201cbooks\u201d count.<\/p>\n\n\n\n
The sheer amount of data Large Language Models (LLMs) are trained with means two things:<\/p>\n\n\n\n
- \n
- Because training datasets are vast and diverse, verbatim copying is uncommon<\/strong>\u2014but overlap with copyrighted or proprietary material can still occur<\/strong>. <\/li>\n\n\n\n
- That\u2019s why disclosure and citation are critical when you use AI to draft content.<\/li>\n<\/ol>\n\n\n\n
If you combine a large amount of original work, you may create content that is so different from the original that it can’t be traced back to it.<\/p>\n\n\n\n
This is what researchers found in a recent study called ‘Will ChatGPT Get You Caught?<\/a>‘. The researchers tested ChatGPT-created essays with plagiarism checkers such as Turnitin and iThenticate.<\/p>\n\n\n\n
Result:<\/strong> in that experiment, 40 of 50 essays (80%) showed \u226420% similarity in Turnitin\/iThenticate\u2014i.e., they appeared \u201chigh-originality\u201d to plagiarism<\/strong> checkers.<\/p>\n\n\n\n
However, follow-up research shows paraphrasing attacks can evade many AI detectors, and detection tools can produce false positives\/negatives, so no single checker is definitive.<\/p>\n\n\n\n
Bottom line: AI-written text can look \u201coriginal\u201d to traditional plagiarism checkers, but that doesn\u2019t mean it\u2019s undetectable as AI. Use both<\/strong> a plagiarism checker and a modern AI-writing detector\u2014and always disclose and cite sources appropriately.<\/p>\n\n\n\n
Can Universities Detect AI Plagiarism?<\/h2>\n\n\n
\n![\"Young](\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/ai-plagiarism-002-1-1024x683.jpg\")
<\/picture><\/figure><\/div>\n\n\nSimilar to the study mentioned above, most universities rely on well-established tools such as Turnitin and iThenticate to detect plagiarism.<\/p>\n\n\n\n
This creates gaps in detection, because while tools like Turnitin and iThenticate now include AI-writing detection modules<\/strong>, their accuracy remains inconsistent \u2014 producing both false positives and false negatives, especially with newer models like GPT-4 Turbo and Claude 3.<\/p>\n\n\n\n
By 2025, many universities have adopted AI-detection add-ons within Turnitin, but enforcement varies widely across institutions.<\/p>\n\n\n\n
This doesn’t mean you should rely on AI to get through university. Always remember that the purpose of going to university is to help you understand your topic of study.<\/p>\n\n\n\n
University prepares you for a competitive 21st-century workplace. You can only be properly prepared if you internalize your field of study by investing time and energy whilein university.<\/p>\n\n\n\n
Using AI may help you make your studying efforts more effective – and write your papers and essays more quickly.<\/p>\n\n\n\n
Because detection isn\u2019t foolproof, students and professionals increasingly use tools like Undetectable AI\u2019s AI plagiarism checker<\/a> to verify their own work before submission.<\/p>\n\n\n\n
Make sure you understand what you’re writing about (and conceal any AI-generated content effectively). <\/p>\n\n\n\n
Here’s how you can do that:<\/p>\n\n\n\n
How To Check For AI Plagiarism? The Rise of AI Detectors<\/h2>\n\n\n\n
Given that conventional plagiarism-detection software considered the ChatGPT-generated essays as human-written, it’s worth looking at alternatives for educators and AI users alike.<\/p>\n\n\n\n
What is required is a first line of defense: A tool that checks whether or not the text was generated by AI (before checking it for plagiarism in the conventional way).<\/p>\n\n\n\n
This tool is called an ‘AI detector’.<\/p>\n\n\n\n
There are plenty of AI detectors available that can accurately identify AI content. For educational institutionsand students and professionals alike who want to ensure that their content is not flagged by common AI or plagiarism checkers, these have become a must.<\/p>\n\n\n\n
Click on the link to discover a comprehensive list of the best AI detectors in 2025<\/a>.<\/p>\n\n\n\n
One of the best AI detectors is Undetectable AI. It can accurately screen content for signs of AI, has over 5,000,000 users – and has been featured by Forbes.<\/p>\n\n\n\n
You can use the Undetectable’s AI Plagiarism Checker<\/a> for free to detect plagiarism.<\/p>\n\n\n\n
![\"Undetectable](\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2024\/03\/undetectable-ai-plagiarism-checker-9598465-1024x577.jpeg\")
<\/picture><\/figure>\n\n\n\nDid AI Write This? How To Identify AI-Generated Text<\/h2>\n\n\n\n
Peer-reviewed studies show that humans<\/a>, regardless of age, are unreliable at spotting AI-written text \u2014 most readers misclassify it about 50% of the time<\/p>\n\n\n\n
So, it’s not that exposing yourself to text written by AI may help you distinguish it better. It may actually unconsciously help you build a tolerance towards it.<\/p>\n\n\n\n
The most effective way to identify AI-generated content is to use specialized detection tools trained on large datasets of both human and AI writing \u2014 essentially, it takes one algorithm to catch another.<\/p>\n\n\n\n
These systems are known as AI content detectors<\/strong> or simply AI detectors<\/strong>. <\/p>\n\n\n\n
They analyze subtle linguistic patterns, token probabilities, and sentence-level anomalies that humans cannot reliably perceive \u2014 making them far more accurate than manual judgment.<\/p>\n\n\n\n
How To Avoid Plagiarism Using AI<\/h2>\n\n\n\n
There are a few best practices to avoid plagiarism<\/a> when using AI-generated text:<\/p>\n\n\n\n
- \n
- Ask LLMs for the primary sources of their information in the prompt (Do not use ‘ChatGPT’ as a source).<\/li>\n\n\n\n
- Use AI-generated content as a starting point, not the final product.<\/li>\n\n\n\n
- Rephrase the content you use from LLMs.<\/li>\n\n\n\n
- Follow the specific guidelines and ethical standards of your field.<\/li>\n\n\n\n
- Double-check the end result by testing it with an AI detector such as Undetectable AI.<\/li>\n\n\n\n
- Use Humanize AI<\/a><\/strong> (also offered by Undetectable AI) to automatically rephrase the content. This has less AI detection likelihood than manually rephrasing it according to this study.<\/a><\/li>\n<\/ul>\n\n\n\n
![\"Undetectable](\"https:\/\/undetectable.ai/blog\/wp-content\/uploads\/2025\/08\/AI-Watermark-Removal-Tool-Undetectable-AI-1024x481.jpg\")
<\/picture><\/figure><\/div>\n\n\nAnother useful step is running your text through Undetectable AI’s AI Text Watermark Remover<\/strong><\/a>, which clears any hidden AI watermarks or generation patterns.<\/p>\n\n\n\n
It refines phrasing and rhythm so your content reads naturally, helping ensure it feels\u2014and is received\u2014as genuinely human-written.<\/p>\n\n\n\n
Best AI Plagiarism & Detection Tools (2025)<\/h2>\n\n\n\n
The previous study ‘Will ChatGPT Get You Caught?’<\/a> used well-researched tools such as:<\/p>\n\n\n\n
- \n
- Turnitin, and:<\/li>\n\n\n\n
- iThenticate<\/li>\n<\/ul>\n\n\n\n
Traditional tools like Turnitin and iThenticate remain valuable for plagiarism checks, but they struggle with detecting AI-generated content. I<\/p>\n\n\n\n
n 2025, the best results come from combining plagiarism checkers with dedicated AI detection tools.<\/p>\n\n\n\n
They may be used in combination with one of the following free AI detectors (and AI plagiarism checkers) for the best results:<\/p>\n\n\n\n
- \n
- Undetectable AI<\/strong> \u2014 Best Overall<\/a> (AI detection + humanizing rewrite; trusted by 5M+ users, Forbes-featured)<\/li>\n\n\n\n
- Copyleaks AI Detector<\/strong> \u2014 Best for Academic Institutions (integrates with LMS systems; highly adopted in 2025)<\/li>\n\n\n\n
- Originality.AI<\/strong> \u2014 Best for Publishers & Agencies (team-friendly, bulk scanning, popular in SEO\/content teams)<\/li>\n\n\n\n
- GLTR<\/strong> \u2014 Good for detecting older GPT versions (but less accurate for GPT-4 and newer)<\/li>\n\n\n\n
- ZeroGPT<\/strong> \u2014 Lightweight, decent option for freelancers<\/li>\n\n\n\n
- Sapling<\/strong> \u2014 Useful for agencies that need Chrome extension + CRM integrations<\/li>\n<\/ul>\n\n\n\n
Modern detectors use techniques such as linguistic forensics, token probability analysis, and watermark detection to flag AI-generated text patterns.<\/p>\n\n\n\n
You can find an in-depth review of the above AI detectors, along with six more AI detectors, here: Top 10 Best AI Content Detectors<\/a><\/p>\n\n\n\n
Our AI Detector and Humanizer are available in the widget below for your convenience.<\/p>\n\n\n\n
- Copyleaks AI Detector<\/strong> \u2014 Best for Academic Institutions (integrates with LMS systems; highly adopted in 2025)<\/li>\n\n\n\n
- Undetectable AI<\/strong> \u2014 Best Overall<\/a> (AI detection + humanizing rewrite; trusted by 5M+ users, Forbes-featured)<\/li>\n\n\n\n
- That\u2019s why disclosure and citation are critical when you use AI to draft content.<\/li>\n<\/ol>\n\n\n\n
- Because training datasets are vast and diverse, verbatim copying is uncommon<\/strong>\u2014but overlap with copyrighted or proprietary material can still occur<\/strong>. <\/li>\n\n\n\n
- Breach of contract. <\/strong>In short: An employer hires you to create original work. Yet you deliver plagiarized work.<\/li>\n<\/ol>\n\n\n\n
- Copyright infringements. <\/strong>In short: You make money out of someone else’s original work (where they should make money out of).<\/li>\n\n\n\n
- AI detectors are essential for ethical content use<\/li>\n<\/ul>\n\n\n\n
- Undetectable AI helps rewrite and avoid detection<\/li>\n<\/ul>\n\n\n\n
- Most plagiarism tools miss AI-generated content<\/li>\n<\/ul>\n\n\n\n
- Schools now penalize undisclosed AI-assisted work<\/li>\n<\/ul>\n\n\n\n
- AI writing is often mistaken for human, even by experts<\/li>\n<\/ul>\n\n\n\n