Turnitin AI Report Explained: How It Works and What You Should Know
As all of us know, AI writing tools like ChatGPT, Gemini AI, Perplexity, etc., are gaining popularity across the globe. The academic field is also affected by them, as students and researchers are taking help from these tools for their work. This raises a serious concern in developing critical thinking skills and academic integrity in scholars. To overcome this problem and to ensure academic integrity in the academic field, many universities nowadays demand an AI report, which is available in Turnitin. So, Let us understand the Turnitin AI report in detail.
To get a Turnitin AI report and/or Turnitin plagiarism report in minutes for your work (thesis, dissertation, research paper, review paper, book chapters, etc.), please visit our Turnitin Plagiarism Checking Page.
If you need help in reducing AI content and/or plagiarism, then please visit: Plagiarism Removal Services.
Key Differences between Text generated by Humans and AI
AI-written Text
Human-written Text
Normally AI writing tools generate sentences of a uniform length on any given topic.
Humans typically use sentences of different lengths in their writing. Some sentences can be short and some other can be long or medium length (blend of varying length)
Text generated by AI is highly rhythmic in nature and has a perfect flow.
Flow and rhythm of text written by humans vary as per personality of the writer.
AI-written texts generally have few or even no grammar mistakes.
Grammar mistakes in human-written text depend on the skills of the writer. Some highly skilled writers may make almost zero errors, while some other less skiiled writers may make more mistakes.
AI-generated text is normally monotonous. It lacks emotions and human intelligence. It is just a presentation of old data included in the training of the model and does not have any new innovative thoughts. There is no creativity in the writing.
Humans normally write after thinking, so human-written text is full of emotions and ideas in their minds. It may have some thoughts that were not known earlier and are just the output of their imagination or misinterpretations of already existing information. They will have new innovative and creative ideas.
AI-written texts generally have repetitive words. Vocabulary used in text generation is very limited and highly focused around the core topic.
Human-written text is diverse in vocabulary. Humans think naturally, so use their ideas in mind. They think on the topic and related things, so repetition of the same words is normally less.
AI-written text generally gives artificial examples and references. They are kind of generic in nature.
Examples and references used in human-written text are based on real-world experiences.
AI report by Turnitin
The AI report is an additional feature in Turnitin that estimates how much of the text was likely written by an AI model.
It provides a percentage score labeled “x % detected as AI.” where x is a number between 20 to 100.
It is separate from the plagiarism similarity score, which checks originality against sources available in the database of Turnitin. This score checks for AI-style writing patterns.
% AI score is written in Turnitin as shown in below given figure:
Detection Groups in Turnitin AI Report
Turnitin AI report categorizes AI writing in 2 groups.
- AI generated only
- AI-generated text that was AI-paraphrased:
AI-generated only
It highlights the text, which is likely generated with the help of AI tools like ChatGPT. Gemini AI, Perplexity AI, etc.
AI-generated text that was AI-paraphrased
It highlights the text, which is likely generated with the help of AI tools and then paraphrased by some other AI-powered tool for paraphrasing in a way that makes it look like it was written by humans. “Humanizer” tools are on the boom these days, and Turnitin has the technology to catch them separately.
The image given above shows a Turnitin AI Report showing 100% detected as AI and then classifies it in 2 different groups, which are mentioned as
- 14 AI-generated, only 96%
- 1 AI-generated text that was AI-paraphrased 4%
It means that Turnitin found a total of 14 groups of text written by AI that account for a total of 96% of the submitted text, and Turnitin found 1 group of text that was written by AI and then paraphrased by AI to look like it was written by a human, accounting for 4% of the submitted text.
Difference between 2 categories deviced by Turnitin for AI Text
AI-generated text that was AI-paraphrased is an amazing feature of Turnitin, which was launched to tackle the tools that were devised to bypass AI detection by AI detection tools like Turnitin. This feature easily recognizes the text that was paraphrased by AI tools that claim to make AI-generated text look like it was written by humans. Let’s understand it’s need by looking into the timeline.
Timeline
Event
Details
Nov 2022
Advent of AI writing tools
ChatGPT was released, making generative AI widely accessible to the public
Apr 2023
Turnitin launched AI detection Report
Turnitin rolled out new AI detection capabilities to combat the improper use of AI writing tools in academic writing.
Early 2024
Advent of AI Humanizers
A market for “humanizer” tools emerged to rewrite AI-generated text, attempting to make it sound more natural and evade detection by AI detection Tools
July 2024
Turnitin launched AI-paraphrasing detection
Turnitin enhanced its report to identify AI-generated text that was subsequently paraphrased to avoid detection.
Era of AI versus AI
Normally people think that “ChatGPT was the first AI tool.”
This statement is 50% correct.
The correct statement is “ChatGPT was the first AI tool available to the common public.”
There were many tools available and used before ChatGPT was launched for the common man. Grammarly and QuillBot are classical examples of AI tools used in the academic field before the launch of ChatGPT. But, with the launch of the AI detection report, technically Turnitin also joined the list of AI tools but with a different purpose of:
“Maintaining Academic Integrity and preventing misuse of AI in academics.”
Initially, Turnitin was a tool that was launched with the aim of detecting plagiarism only, and it did that by comparing the submitted text against its massive database with the help of its advanced data-comparing algorithms.
The database of Turnitin comprises
- Thesis
- Dissertations
- Research papers
- Review papers
- Synopsis
- Project reports
- pages available on internet
- Scholarly articles
- Other academic data
With the launch of AI for the general public and its injudicious use, Turnitin was no more able to help academia with its primary methodology, so it also launched a new feature of AI writing detection with the help of a deep learning technique, which is also a form of AI that analyzes submitted text to determine if it is written by any LLM model like ChatGPT or by any human.
How Turnitin detect AI generated content?
All available AI tools are LLMs (language learning models) trained with massive amounts of data, which they utilize to generate the answers.
Turnitin, as well as other AI detection tools like DrillBit, GPTZero, Copyleaks, or Originality.ai, are able to detect AI-written text because:
- AI detectors don’t “read” the meaning of text like humans do. Instead, they analyze patterns in documents to estimate whether it’s likely written by a human or an AI model (like ChatGPT, Gemini, or Claude). They rely on linguistic, statistical, and probability-based clues.
- All AI writing tools follow a specific pattern in their writing, as mentioned in the above section, and AI detection tools train their AI detection model on individual styles of these writing models.
- They also train their AI detection models with massive amounts of data (thousands of pages) of human-written text as well as AI-written text on a regular basis so that their systems are updated to differentiate between both types of writing on a regular basis. They regularly train their AI-detection models with matter written by different AI tools available in the market to understand the latest developments in their writing patterns to recognize text generated by them.
- Turnitin already has a massive amount of data in its repository, which was collected before the rise of AI era, which is a huge advantage for them to train their AI detection tools.
Changing AI Scores: Check sample Turnitin AI reports
Yes, Turnitin AI scores are changing every day. As described in an earlier section, in this era of AI versus AI, Turnitin is evolving every day to make its AI detection stronger and be helpful in maintaining academic integrity.
We did an experiment to prove this.
- We wrote a sample research paper by using AI and checked it on Turnitin.
- Content was submitted on 3 Oct 2025, and Turnitin detected 78% of the content as written by AI. Download the sample Turnitin AI Report showing 78% of the content as AI-written on 3-Oct-2025.
- The same content was submitted again on 16 Oct 2025, and Turnitin detected 100% of the content as written by AI. Download the sample Turnitin AI Report showing 100% for the same content on 16-Oct-2025.
This clearly proves that Turnitin is evolving on a daily basis to keep pace with growing AI content so that it can help academia by detecting AI content and maintaining academic integrity.
Can't find a score in your Turnitin report?
% detected as AI
Turnitin AI Report shows
Explanation
0%
0%Turnitin is sure that no AI was used in writing of submitted text so it shows 0% on its AI report.
1%-19%
*%Turnitin understands that AI-detection system is stil in early phase of development and is evolving daily, so in some cases, its system can detect human-written content as AI-written content by mistake.
So, if low content was detected as AI-written by Turnitin (1%-19%), it is not shown in the AI report by Turnitin to avoid misinterpretation due to false positive results.
20%-100%
Precise % found
In such cases, Turnitin is sure that some sort of AI tool was definitely used in writing the submitted text. So, a precise percentage is shown in the AI report by Turnitin.
If you want to know the official statement of Turnitin on this, just read the second page of the AI report by Turnitin carefully. Here we are providing a screenshot of some AI reports by Turnitin as well as a screenshot of the second page of the Turnitin Report for your reference so that you can understand it if you don’t have your own AI report by Turnitin.
We have tried to explain everything about the Turnitin AI report in this article so that scholars and educators can understand everything about the Turnitin AI report. If you have any questions about the Turnitin AI report that are not addressed in this article, we would love to help you. Just WhatsApp us to know the answers to questions in your mind. It’s quick and free, so contact us on WhatsApp now.
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