Direct answer
In Turnitin, AI writing detection lives inside the Similarity Report as a separate AI writing indicator, showing the percentage of a document suspected to be AI-generated [1]. Instructors see this indicator in their Feedback Studio grading view once their institution has enabled AI detection for the assignment, and a full AI writing report is produced when the AI score is high enough to report. If you are a student who wants to see your own score before submitting, you can run a Turnitin AI check on your draft with a service such as turnitin0 and receive the same AI and similarity reports professors see [1].
How Do I View the AI Writing Report for My Submission in Turnitin?
The AI writing report is part of the Turnitin grading workflow, not a standalone tool. When AI detection is enabled for an assignment, the Similarity Report's document viewer shows an AI writing indicator — a percentage displayed separately from the similarity score — so you can see both signals side by side [2].
A full AI writing report, with an overall percentage plus sentence-level highlights, is generated when the AI writing score reaches 20% or higher. Below that threshold, no complete report is produced and the score is shown as an asterisk (*) rather than as a single-digit number such as 3% or 12% [2].
Visibility depends on your role and your institution's settings. Instructors see the indicator in Feedback Studio, while students may or may not see it depending on how the account and the assignment have been configured, so the report is not equally visible to everyone in the workflow [2].
How Reliable Is Turnitin's AI Detection When It Flags a Paper?
Turnitin trained its detector on a large corpus of academic writing alongside AI-generated text, and its published testing targeted a false positive rate below 1% — meaning roughly one in every 100 fully human-written documents may still be flagged [3]. That makes the score a strong signal, but not a perfect one.
A high AI writing percentage is a signal, not a verdict. Turnitin states that the AI writing report is provisional and should not be treated as evidence of academic misconduct on its own; instructors must review the highlighted text and apply human judgment before drawing any conclusion [3].
The detector also has documented limits. It analyzes prose passages rather than bullet lists, short answers, or non-prose content, and results can shift with writing style and language, so the percentage should always be interpreted in the context of the specific assignment [3].
Can I Check My Paper's Turnitin AI Score Before My Instructor Grades It?
Usually not through your own LMS account. Turnitin's AI detection is controlled at the institutional level, and most universities only enable the AI indicator in the instructor's grading view, which means students cannot self-serve an official AI report from their own draft space [4].
That is why pre-submission checking happens through Turnitin-compatible checking services. Services such as turnitin0 run your document through Turnitin's similarity and AI detection and return the same report structure — cover, AI score, flags, and similarity summary — that your professor would see [4].
Checking before submission gives you the chance to interpret the score and revise flagged sections while the paper is still yours to edit, instead of discovering the result after it has already landed in the grading queue [4].
Knowing how the AI indicator works is only half the story — the real question is what your own draft will show before it reaches your instructor's grading queue. turnitin0 lets you run the exact same Turnitin AI and similarity checks on your document, so you can preview your score, inspect the flagged sections, and clean up your draft before you submit.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
Where does the AI writing score appear in Turnitin?
The AI writing indicator shows up inside the Similarity Report as a percentage displayed separately from the similarity score, but only when your institution has enabled AI detection for the assignment [1].
Why does my AI score show as *% instead of a number?
Turnitin displays any AI writing score below 20% as *% rather than as a single-digit percentage; the only explicit low numeric outcome you typically see is 0% [1][2].
Can students check their own AI score before submitting?
In most institutions the AI indicator is only visible in the instructor's grading view, so students usually cannot run the official check themselves; third-party Turnitin checking services fill that gap before submission [4].
Does a high AI percentage prove the paper was written by AI?
No. Turnitin's detector is designed to support educator judgment rather than to declare misconduct, and it can still produce false positives even with a target false positive rate below 1% [3].
How can I preview my Turnitin AI report before submitting?
You can upload your document to a Turnitin-based checking service like turnitin0, which returns the real AI and similarity reports — typically within minutes — so you can review your score before your official submission [4].