DeepSeek AI Detector for V4 Pro, V4 Flash and V3.2

It can screen text from those DeepSeek models and return AI, Mixed, and Human probabilities with sentence highlights. The report estimates whether the passage resembles AI writing; it cannot prove which exact model produced it.

The report is a probability signal, not a final judgment. Short, highly edited, or formulaic academic passages can produce less reliable results, so review the highlighted sentences and the writing context together.

Yes. Upload a PDF, DOCX, or TXT file and Lynote will extract the text for analysis. The file text is checked with the same AI, Mixed, and Human report.

No, your text is not stored or used to train models. We process your document for detection and delete it immediately.

The free detector supports up to 600 words in the text box. Pro users can check up to 3000 words per request. For longer reviews, upload a full .docx, .pdf, or .txt file instead.

Yes, but the result depends on the passage. Longer, mostly unedited DeepSeek output may show stronger signals; short excerpts or heavily revised drafts can be harder to classify. Use the overall probabilities and sentence highlights together.

You can screen text from DeepSeek R1 and R1-0528 with the same detector. The report looks for AI-writing signals in the passage; it does not certify that R1 was the exact source.

Heavily revised text may return a Mixed result or a lower AI probability. Review the highlighted sentences and compare them with the rest of the draft; substantial human editing can weaken the signals a detector uses.

No. A high score means the passage contains patterns the detector associates with AI writing. Confirm the result with sentence highlights, source notes, version history, and the author's writing process before making a consequential decision.

No. The model names describe common DeepSeek sources you can check, not guaranteed model attribution. Lynote analyzes the submitted text and reports AI, Mixed, and Human probabilities.