
Detection accuracy
96.0%Share of Spanish texts we classified correctly across 11,997 human and AI writing samples.
DetectRL-X dataset

Share of Spanish texts we classified correctly across 11,997 human and AI writing samples.
DetectRL-X datasetShare of human-written Spanish texts our detector flagged as AI-generated.
CAES datasetUse the original Spanish passage, including its accents and punctuation.
Paste a passage in Spanish or upload a PDF, DOCX or TXT file.
Choose Deep AI Scan and select Run scan to open the analysis in the app.
Read each highlighted sentence in context. Drafts and sources can help explain how a passage was written.
Check essays and coursework written in Spanish. Read the highlighted sentences alongside the full assignment, drafts and references.
Review Spanish news articles, blog posts and editorial submissions. Use the result to identify passages for discussion with the writer before publication.
Check Spanish business and marketing copy in its original form. Regional vocabulary and editing can affect a text, so interpret each result in context.

The detector looks for writing patterns associated with AI-generated text. You can review the overall result and see which sentences contributed to it.
La biblioteca del barrio ha organizado un intercambio de libros para el próximo sábado. Cada participante puede llevar una obra que ya haya leído y elegir otra entre las disponibles. Además, habrá un espacio para conversar sobre las lecturas y proponer actividades para los meses siguientes.
Yes. The free plan includes a scan allowance. Your account shows how many words and scans you have left.
We correctly classified 96.0% of the 11,997 Spanish samples in DetectRL-X. In a separate test on CAES, we flagged 0.72% of human-written texts as AI-generated. Results can vary with the length and subject of your text.
It’s AI checks Spanish writing for signs of AI-generated content, including text that may come from ChatGPT. The score estimates how likely a passage is to contain AI-generated writing. Identifying the model or author requires other evidence.
Paste the original Spanish passage. Translation changes the wording and sentence structure that the detector analyses.
You can submit Spanish text in its original regional variety. Keep local vocabulary, accents and punctuation. Our published benchmark covers Spanish as a whole. We do not report separate scores for individual countries or dialects.
Review the full passage and the sentence-level analysis together. Short, edited, formulaic or mixed-language texts may need extra care. Compare results with drafts, references and the author’s process. An AI score alone is not proof of misconduct or authorship.