Can Amazon Detect AI Writing? What KDP Says

Searches for this question usually come from one worry: will my book be flagged? We read the sources instead of guessing. This is general information as of October 2026, not legal advice, and policies change, so read the current KDP page before you publish.

What KDP's page says about AI

KDP's content guidelines draw a line between two things. On the first, the page says: "We require you to inform us of AI-generated content (text, images, or translations) when you publish a new book." The same requirement applies when you make edits to and republish an existing book. KDP adds that AI-generated images include cover and interior images and artwork.

• AI-generated

  What KDP says it means

  You used an AI-based tool to create the actual content (text, images or translations). KDP says this counts "even if you applied substantial edits afterwards".

  Disclose?

  Yes

• AI-assisted

  What KDP says it means

  You created the content yourself and used AI-based tools to edit, refine, error-check or otherwise improve it, or to brainstorm and generate ideas.

  Disclose?

  No

KDP also says you are responsible for verifying that all AI-generated and AI-assisted content follows its content guidelines, including applicable intellectual property rights. The wider picture, including ownership and other platforms, is in can you sell AI-generated ebooks?

What the page does not say

The page does not describe any method Amazon uses to detect AI-generated or AI-assisted content, and it gives no enforcement figures for AI content. It does say, in general terms, that Amazon uses "a combination of machine learning, automation, and dedicated teams of human reviewers" to enforce its guidelines. That sentence is not specific to AI. So anyone who tells you exactly how Amazon detects AI writing, or how often it acts, is going beyond what Amazon has published. We can't confirm those claims, so we haven't repeated them.

How reliable are AI-text detectors?

Amazon hasn't said it uses a public detector. Still, what the primary sources say about detectors in general is worth knowing, because many articles on this topic lean on them.

• OpenAI withdrew its own. Its announcement page now says: "As of July 20, 2023, the AI classifier is no longer available due to its low rate of accuracy." At launch it reported that on a challenge set of English texts it correctly identified 26% of AI-written text and wrongly labeled human-written text as AI-written 9% of the time. It also said human-written text is sometimes "confidently" mislabeled as AI-written, and that the tool was very unreliable on texts under 1,000 characters.
• A peer-reviewed study found bias. Liang and colleagues, in the journal Patterns (volume 4, 2023), report that GPT detectors "frequently misclassify non-native English writing as AI generated", raising fairness concerns.
• A vendor's own FAQ urges caution. Turnitin's FAQ aims to keep its false positive rate under 1% for documents with over 20% AI writing, which it describes as about one in every 100 fully human-written documents. It also says it may miss some AI text to hold that rate, and that the percentage "should not be used as the sole basis for action".

Those are three different tools measured in three different ways, so don't compare the numbers directly. The common thread is that the makers and researchers themselves describe detection as imperfect: both missed AI text and false accusations against human writers are documented.

So what should you do?

Don't build your plan around guessing what Amazon can or can't detect. Build it around the rule the page actually states: if an AI tool created the content, tell KDP when you publish. That is the safe course whatever any detector does, and it keeps you on the right side of the policy you agreed to.

It also helps if a book is ever questioned. Keep a dated folder for each title with your source material, the outline you approved, drafts and your edited version, so you can show how the book was made. The step-by-step for publishing an AI-assisted book on KDP walks through the publishing screens.

SuperEbook is built for work you can account for. Planning is free: you see three title options, a brief and an editable outline, and nothing is written until you press Write. Each chapter is then written from the passages of your uploaded material that fit it, to the plan you approved. It doesn't show which passage produced which paragraph, so your own review and edit matter. It makes non-fiction books and coloring books, and exports PDF, EPUB and DOCX with full commercial rights. Downloads need a paid plan or a credit pack bought from the book's page, and every account starts with 50 free credits.