Turnitin AI Report Checker in Japan: Check Before You Submit

Japan is one of the few countries where Turnitin's AI detector reads the national language. Turnitin launched Japanese AI writing detection in April 2025, so reports and theses in Japanese, as well as English papers, can be scored.

Japanese AI detection

• Launched April 2025 as a separate add-on to Turnitin Originality and iThenticate.
• Gives an overall percentage of likely AI-generated text, like the English version.
• Availability depends on whether your institution bought the add-on.
• AI-paraphrase detection remains English-only.

Who in Japan should check first

• Students in English-taught programmes and international colleges.
• Students writing a sotsugyo ronbun (graduation thesis) at a Turnitin institution.
• Graduate students and researchers submitting English papers to journals.
• International students writing in Japanese as a second language.

Sample Turnitin AI and similarity reports

Both screenshots below come from the same 24-page, 6,364-word paper. The similarity report found 1% overall similarity. The AI writing report flagged 51% of the qualifying text as likely AI-generated. Tap either one to see it full size.

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Screenshots shown for illustration. Your own reports arrive as full PDFs in your dashboard.

How to get your report from Japan

1. Create an account and buy a slot.
2. Upload your .docx or .pdf (300 to 30,000 words for an AI score).
3. Download your similarity report and AI writing report from your dashboard, usually within minutes.

$3.99 USD per document; your card converts to yen automatically. Buying for a group? Buy 10 slots, get 1 free: every 10 slots you pay for come with 1 free, added automatically.

Next: how to read a Turnitin report and a page-by-page AI report example.