Turnitin Now Checks German, Turkish and Dutch for AI Writing: What Changed on 6 October 2026

Turnitin's AI writing detection now reads submissions in Turkish, German and Dutch. Turnitin's product updates page dates the release 6 October 2026 and says it is available to existing customers "who currently license Turnitin Originality and have the AI writing detection capability enabled on their accounts", and to iThenticate 2.0 customers who license AI writing detection and have it switched on. Added to English, Spanish, Japanese and Arabic, that makes seven languages. The file rules for the new three match the English ones. What is still English-only is the part of the detector that looks for AI text that was run through a paraphrasing or bypassing tool.

If you study in Germany, the Netherlands or Turkey but submit your work in English, nothing changed for you on 6 October. English files go to the English model, same as before.

Only if all of the following are true, and most of them are decided by your institution, not by you.

• Your institution licenses Turnitin Originality, or for iThenticate 2.0, the AI writing add-on. Plenty of schools use Turnitin for similarity checking only. Why Doesn't My School Show an AI Score on Turnitin? covers that case.
• An administrator has the feature switched on. The new FAQs say an institution can turn AI writing detection off in its admin settings, and that submissions are then not checked for AI writing at all.
• The file is in one of the seven languages. Turnitin says that "based on the language of the submission, the appropriate model will process it", and a paper in a language outside the list gets no report.
• It meets the file rules: at least 300 words of prose in long-form writing, no more than 30,000 words, under 100 MB, and a .docx, .pdf, .txt or .rtf file (the Dutch page also lists .doc; the German and Turkish pages don't).
• It was submitted after the launch. Each FAQ says the only way to get an AI report on a submission made before the feature existed is to submit it again.

Even when all five hold, you probably won't see the number yourself. All three FAQs say students can't see the indicator or the report. What they allow is for an instructor to save the report as a PDF and give you a copy. Can Students See Their Turnitin AI Score? Student vs Instructor Views has the wording for asking for that PDF.

Mostly, yes. Turnitin's English FAQ says it covers English submissions only and links out to a separate FAQ for each other language. Here is how the German, Turkish and Dutch pages compare with it, as we read them on 7 October.

If a report shows an asterisk, the reading is the same in every language; What Does the Asterisk (*%) Mean on a Turnitin AI Score? goes through it.

The English FAQ puts the main difference in one line: "However, our AI paraphrasing and bypassing detection capabilities are only available for English submissions." The Dutch, German and Turkish pages each say, in their own language, that detection of AI paraphrasing is currently only in the English detector ("currently" being op dit moment, derzeit and şu anda). That is a description of what the software looks for in October 2026. It tells you nothing about what your course allows. Whether AI text that was reworded afterwards counts as misconduct is decided by your course rules, not by which features a detector has.

There is a quieter difference too. All three new FAQs repeat the English page's target of keeping false positives under 1% for documents with more than 20% AI writing. The English FAQ also says how it checks that number, with tests on "over 700,000 additional academic papers that were written before the release of ChatGPT". None of the three new FAQs says how the 1% is checked for its language. The 700,000-paper test has no counterpart on them, and the figure 700 doesn't appear at all. (They do mention testing in one place: their own tests, they say, found false positives more common below 20%, which is the reason for the asterisk.) On these pages, then, the 1% is a stated aim for German, Turkish and Dutch, with no validation described behind it. Worth remembering if a percentage is ever put in front of you: ask to see the highlighted passages, not only the number.

The announcement links to a German-language FAQ, which is the page a German-speaking student would open first. When we read it on 7 October (it was last edited on 6 October at 20:46 UTC), it still had another language's details in it. Those references to Greek had been corrected when we checked again on 9 October; the page records an edit at 18:02 UTC on 7 October. The following describes the earlier snapshot:

• Its first question asked whether Turnitin detects AI writing "für Einreichungen auf Griechisch" (for submissions in Greek), and answered yes.
• Its list of supported languages ended with Griechisch (Greek), after Deutsch and Niederländisch.
• Its file requirements were introduced as the rules for Greek-language submissions, and the last one read "Die Datei muss auf Griechisch verfasst sein" (the file must be written in Greek).
• Its model table was labelled German, but the release dates in it were introduced with the Dutch word "Uitgegeven".

In that earlier snapshot, some form of the word Greek appeared nine times on the page, counting the table of contents at the top. The word Deutsch appeared once, in that language list. The current page uses Deutsch in the first question and no longer contains those Greek references. The table now uses the German word "Veröffentlicht" for release dates.

For the rules themselves, the error did not change much. The thresholds in that German-page snapshot (300 words, 30,000 words, 100 MB, the four file types, the asterisk below 20%) matched the Turkish, Dutch and English pages, apart from the extra .doc on the Dutch page. For the list of languages, go by the English FAQ or the 6 October entry on the product updates page. Neither of those, nor the Turkish or Dutch FAQ, mentions Greek.

Turnitin didn't update its help centre all at once. These four pages still had the pre-October list when we read them on 7 October:

The pages that do have the change are the product updates page (6 October entry), the release notes page (2026 October 6 entry), the English FAQ (edited 7 October) and the three new language FAQs. So if an instructor, a classmate or a forum post tells you German, Turkish or Dutch isn't checked, ask which page and what date. A page or post from before 6 October that says those languages aren't checked was correct at the time.

If your course runs in Turnitin Clarity, both Clarity pages above still show the older lists, so ask your instructor directly whether work in your language is being checked there.

A German master's thesis may carry an English abstract. A Dutch essay may quote English sources at length. Which model reads a file like that? The only rule these pages give is the one quoted above: the model is chosen "based on the language of the submission". We searched the English FAQ, the three new FAQs and both 6 October entries, about 121,000 characters in all, for any mention of mixed-language or multilingual documents, using English terms and each page's own language. Nothing came up. The same search found no mention of Swiss or Austrian German, or of Flemish.

That search covers those six texts only, so it doesn't prove Turnitin has no answer somewhere else. It does mean nobody can point to one of these pages to settle the question. If your file mixes languages, ask whoever will read the report how they plan to treat it, and do it before you submit.

1. Find out whether it's on for your course. Ask your instructor, or the team that runs Turnitin at your institution, whether AI writing detection is enabled for the assignment. It depends on a licence and a setting, and neither is visible from the student side.
2. Read the assignment's own rules on AI. The detector arriving in your language doesn't change what you're allowed to use. The course decides that, and it may already have said so in writing.
3. Keep your drafts. Version history in Word, Google Docs or Overleaf shows, day by day, how the work got built up. If a question ever comes up, that record says more than a percentage.
4. If someone raises a score with you, ask to see the whole AI Writing Report as a PDF. Check the submission date on it, and if someone cites a Turnitin rule, ask which page and which language version they read.

I study in the Netherlands but write in English. Does this change anything? No. English submissions go to the English model, exactly as they did before 6 October.

My German essay was submitted in September. Will it get an AI score now? Not by itself. The FAQs say a submission made before the feature launched only gets an AI report if it is submitted again.

Is Greek supported? Greek is not among the seven languages in the 6 October announcement or the English, Turkish and Dutch FAQs we read on 7 October. The German FAQ's earlier references to Greek had also been removed when we checked again on 9 October.

Does iThenticate get this too? Yes. The product updates entry says the three languages are also available to iThenticate 2.0 customers who license AI writing detection and have it enabled.

• Turnitin, Turnitin product updates, New Features entry dated 6 October 2026; read 7 October 2026.
• Turnitin, Turnitin release notes, entry dated 2026 October 6; read 7 October 2026.
• Turnitin, Turnitin's AI writing detection capabilities FAQs (English, edited 7 October 2026), and the same FAQ in German, Turkish and Dutch (the versions read on 7 October were edited 6 October 2026). German FAQ checked again 9 October 2026, after its 7 October 18:02 UTC edit.
• Turnitin, File requirements for an AI Writing Report and Using the AI Writing Report; read 7 October 2026.
• Turnitin, AI Tools with Turnitin Clarity and FAQs for Instructors using Turnitin Clarity; read 7 October 2026.