{"id":13591,"date":"2025-02-19T13:44:22","date_gmt":"2025-02-19T13:44:22","guid":{"rendered":"https:\/\/plagiarismcheck.org\/blog\/?p=13591"},"modified":"2026-02-03T12:05:26","modified_gmt":"2026-02-03T12:05:26","slug":"can-turnitin-detect-undetectable-ai-a-comparison-with-tracegpt-by-plagiarismcheck-org","status":"publish","type":"post","link":"https:\/\/plagiarismcheck.org\/blog\/can-turnitin-detect-undetectable-ai-a-comparison-with-tracegpt-by-plagiarismcheck-org\/","title":{"rendered":"Can Turnitin Detect Undetectable AI? A Comparison with TraceGPT by PlagiarismCheck.org"},"content":{"rendered":"

Introduction:<\/span><\/h2>\n

AI tools for writing are rapidly evolving, which is excellent. But there is a legitimate concern, particularly from the point of view of academic integrity.\u00a0<\/strong><\/p>\n

Can plagiarism detection systems like Turnitin effectively identify AI-generated content?
\n<\/span>How to determine who wrote the essay : a student or ChatGPT\/other chatbot?
\n<\/span>How to check whether AI tools have been used to paraphrase someone else’s existing text?\u00a0<\/span><\/p>\n

In this article, we’ll explore Turnitin’s AI detection capabilities and an <\/span>alternative solution<\/span><\/a> PlagiarismCheck.org and its benefits.<\/span><\/p>\n

How much AI can Turnitin detect?<\/span><\/h2>\n

AI writing tools are changing the learning process and, if used responsibly<\/a>, can make learning even more effective. In 2023, Turnitin launched AI detection features in its products. Turnitin analyzes statistical signatures and linguistic patterns of the text at the sentence- and document-level metrics. This allows users to detect AI in 96%-99%, which is generally quite a high indicator. For example, <\/span>TraceGPT \u2013 AI Detector by PlagiarismCheck.org<\/span><\/a>, gives 97-98% accuracy, which is also an extremely high rate.<\/span><\/p>\n

How good is Turnitin at detecting AI?<\/span><\/h2>\n

Unfortunately, it is impossible to completely avoid a false-positive results. Turnitin developers <\/span>explain<\/span><\/a>:<\/span><\/p>\n

\u201cOur document false positive rate \u2013 incorrectly identifying a fully human-written text as AI-generated within a document \u2013 is less than 1% for papers with 20% or more AI writing.
\n<\/span><\/i>Our sentence-level false positive rate is around 4%. This means that there is a 4% likelihood that a specific sentence highlighted as AI-written might be human-written\u201d.<\/span><\/i><\/p>\n

False positives are more common in texts that combine human and AI content, especially in transitions between them.<\/span><\/p>\n

It is important to note that AI Detector PlagiarismCheck.org, in particular, tries to solve this problem by <\/span>grading the results on several levels<\/span><\/a>. This way, the tool provides a more accurate and more profound determination of the text’s origin: with minimum false positives in situations where the text features are close to both AI and human writing.<\/span><\/p>\n

Can Turnitin detect AI paraphrasing?<\/span><\/h2>\n

Improper paraphrasing has become an increasing problem with the development of AI tools. As mentioned above, Turnitin has some difficulties recognizing the cases when students paraphrase AI-generated text as if it was their own. In addition, ChatGTP, Gemini, and other AI models do not create content but generate it based on someone’s work, while AI paraphrasing tools rewrite the text to hide AI abuse and plagiarism. For a broader understanding of how ChatGPT compares to other models like Grok, G2 has a guide on\u00a0ChatGPT vs Grok<\/a>. Therefore, AI paraphrasing and AI plagiarism<\/a> are new challenges for detection systems, including Turnitin.<\/span><\/p>\n

Not all tools can correctly determine the presence of AI content if there are changes in the text. Checkers primarily analyze linguistic patterns and a number of indicators to identify similarities between AI-generated content and existing sources, as when scanning the text written or paraphrased by human.<\/span><\/p>\n

You may ask, isn’t paraphrasing<\/a> a legitimate way to include the material into your writing?\u00a0It is, and paraphrasing skills are beneficial to studying. The result shows how much the student has learned, processed scientific papers, and reflected on the provided content. This is why it is crucial to determine who paraphrased the text and how: with automatic tools or independently.<\/span><\/p>\n

\"Can<\/p>\n

PlagiarismCheck.org has excellent results in detecting deep paraphrasing. In particular, analyzing texts generated by Gemini, this tool noticed not only the AI origin of the text but also up to <\/span><\/i>45% of plagiarism. <\/span><\/i><\/a>Most of it was AI paraphrasing of existing content. It proves that PlagiarismCheck.org can successfully recognize AI paraphrasing with TraceGPT detector.<\/span><\/i><\/p>\n

Is it okay to have 0% similarity in Turnitin?<\/span><\/h2>\n

If the text analysis result shows 0% similarity to Turnitin, can it be trusted? On the one hand, students can create original work without signs of similarity. On the other hand, it could indicate that Turnitin failed to identify the violation due to manipulations with the text. In this case, it is worth re-analyzing the text using other tools.<\/span><\/p>\n

Such a result may raise doubts, so teachers should consider additional factors. In particular, to determine how well the work satisfies all other criteria for the assignment: analyze the depth of eleborating on the topic, writing style, critical thinking, the curve of the student’s academic success, and their oral answers.<\/span><\/p>\n

Can Google detect AI content?<\/h2>\n

As one of the leading players in AI research and development, Google claims that it can recognize AI-generated content. For ranking web pages, Google\u2019s algorithms use the model E-E-A-T: expertise, experience, authoritativeness, and trustworthiness. So, the uniqueness of the text is the most important:<\/p>\n