Direct answer
No. Turnitin has not removed AI detection, and as of 2025 the AI writing report remains an active feature in Turnitin's main products, including Feedback Studio and Originality [1]. Whether you see it on your own submissions depends on your instructor's settings, because institutions can enable or disable the indicator per account and per assignment [1]. The practical takeaway: assume AI detection is still running on your draft until you confirm otherwise.
Is Turnitin AI Detection Still Active in 2025?
Turnitin's AI writing detection is still active and continues to be offered to institutions as a standard part of the grading workflow [2]. The feature has not been deprecated, and the AI writing report is available wherever an institution has switched it on in its account settings [2]. If you have access to a submitted report, the presence of the "AI" writing indicator next to the similarity score is the clearest sign that detection is live at your university.
What has changed is the engine behind the indicator, not its availability. Turnitin has continued updating its detector so it can recognize writing produced by newer models, and it has refined the report so instructors see a clearer breakdown of which sentences are likely machine-generated [2]. These updates are a response to how quickly AI writing tools evolve, and they mean a flag you saw months ago may not match what the current model would produce today.
Finally, active detection does not mean automatic punishment. Turnitin consistently frames the AI writing report as one signal among several, and it explicitly cautions that the percentage should not be used as the sole basis for an academic-integrity decision [2]. Institutional policy, not the tool, determines what happens when a paper is flagged, which is why you should check your own draft before submission rather than rely on rumor.
How Does Turnitin's AI Writing Report Work and What Does the Score Mean?
The report works at the sentence level. Turnitin's detector analyzes the submitted text, estimates how likely it is that each sentence was generated by an AI tool, and then rolls those estimates into a single overall percentage for the document [3]. A higher percentage means a larger share of the paper looks machine-generated, and the report visually flags the specific sentences that drive the score [3].
Scores below 20% are not shown as single-digit numbers. In the AI writing report, any result under 20% is displayed as "<20%", so a 3% result and a 17% result look identical to a reviewer [3]. The only explicit low numeric outcome a student typically sees is 0%, which is what a fully human-written paper usually shows [3].
Interpreting the number requires care. Turnitin recommends treating the AI writing percentage as a starting point for discussion rather than a verdict, because detection is probabilistic and can produce false positives — especially for concise, formulaic, or non-native English writing [3]. Educators are expected to review the flagged sentences, weigh the similarity report, and apply their own judgment before deciding anything [3].
Can Students Check Their Turnitin AI Score Before Submitting?
In most university setups, no — not through the LMS itself. The AI writing report is primarily an instructor-facing tool, and students typically cannot preview their AI percentage in Turnitin before they submit an assignment [4]. The similarity report may become visible after a first submission when the instructor has enabled that option, but the AI writing indicator is generally not part of what students can self-check [4].
This asymmetry is one of the most common complaints around Turnitin: you only discover the AI score after your work has been submitted, reviewed, and possibly flagged [4]. Turnitin's own guidance encourages instructors to be transparent about AI writing policies and to use the reports as conversation starters with students, which implies that students are expected to learn their status only through institutional channels [4].
The workaround is to check your draft with the same kind of report instructors use, before you ever click submit. Running a real Turnitin AI check on your own document tells you your AI percentage, your sentence-level flags, and your similarity summary in advance, so a flagged score never reaches your grade as a surprise [4].
Since Turnitin's AI detection is clearly still running, the smart move is to see your own report before your instructor does. turnitin0 gives you a real Turnitin AI writing report and similarity report on your draft — the same score, flags, and summary format that appear in your university's system — so you know exactly where you stand before submission.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
1. Did Turnitin actually remove AI detection?
No. Turnitin's AI writing detection remains available and active in its main products; it is the institution that decides whether the feature is enabled for your assignments [1].
2. Why does my AI score show as <20% or *%?
Turnitin does not display single-digit results below 20% — anything under that threshold is bucketed as "<20%", and 0% is the only explicit low number you can see [1][3].
3. Can my instructor turn AI detection off?
Yes. AI writing detection is controlled by account and assignment settings, so a university or a specific instructor can enable or disable it [2].
4. Can I check my Turnitin AI score before submitting?
Through the LMS, usually not — the AI writing report is instructor-facing. The practical option is to run your own Turnitin AI check on the draft before submission [4].
5. Is the AI score a reliable verdict on my writing?
Not on its own. Turnitin frames the percentage as one signal among several and warns against using it as the sole basis for a misconduct decision [2][3].