Turnitin AI Detection in Spanish: What Changed and How to Check
Independent guide. Not affiliated with Turnitin, LLC. Read the Turnitin disclaimer.
Yes: Turnitin can detect AI writing in Spanish (Español) since September 2024. Turnitin's first non-English AI model launched in September 2024, announced from Mexico City, with a model update in May 2026 aimed at fewer false positives.
What the Spanish model does
| Feature | Spanish | English |
|---|---|---|
| Similarity report | Yes | Yes |
| AI writing percentage and highlights | Yes | Yes |
| AI-paraphrase detection | No | Yes |
| Humanizer (bypasser) detection | No | Yes |
Requirements
300 to 30,000 words of long-form prose, under 100 MB, as DOCX, PDF, TXT or RTF. Mixed-language files aren't supported. Catalan, Basque and Galician are not covered; they get similarity checking only.
Who it affects
- Spain (TFG and TFM)
- Mexico (tesis, tesina)
- Across Latin America and US Spanish-language courses
Country guides: Spain, Mexico, United States.
Check before you submit
Get a Turnitin AI report and similarity report for $3.50, usually within 30 minutes. If your score is high, our human editors can rewrite flagged text ($5.99 per 200 words); for Spanish documents, message us first to confirm an editor.
All languages: Turnitin AI detection by language.
Frequently asked questions
Can Turnitin detect AI in Spanish?
Yes, since September 2024, for long-form Spanish text, where the institution has it enabled.
Does Turnitin detect humanized Spanish text?
Turnitin's AI-paraphrase and bypasser detection are English only, so the Spanish model reports AI-generated text without those extra groups.
Can I check my Spanish document?
Yes. You get a Turnitin AI report and similarity report for $3.50.
See your Turnitin AI and similarity scores first.
- Turnitin similarity report (PDF)
- Turnitin AI writing report (PDF)
- Not stored in any shared repository
- Ready usually within 30 minutes
2 free checks with every 10 you buy.
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- Human editors, not another AI tool
- Aims for a 0% Turnitin AI score, proofreading included
- Fresh Turnitin AI report of the edited file as proof
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