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Large Language ModelsTechCrunch AIPublished: Aug 18, 2026, 04:00 JST2 min read

Amazon destroys rare books to source AI training data

Amazon destroys rare books to source AI training data

Key takeaway

  • Amazon is buying rare books, destroying them by cutting off their spines, and scanning them to train its AI models, according to an investigation by 404 Media.

  • The practice gives Amazon access to rare, out-of-print texts written before AI existed, which are valuable for training because they contain only authentic human writing and help avoid a problem called 'model collapse' in which AI quality degrades when models learn from AI-generated text.

3 Key Points

  1. What happened

    Amazon is purchasing rare books through commercial channels, cutting off their spines, and scanning them at its Las Vegas facility (VGT3) to obtain training text for its LLMs (AI models that understand and generate text), according to 404 Media, which tracked a rare book to the facility.

  2. Why it matters

    Rare and out-of-print texts offer Amazon a source of pre-2022 human-written content that has not been ingested from the internet—valuable because LLMs risk a quality degradation called 'model collapse' when they train on AI-generated text instead of authentic human writing.

  3. What to watch

    Amazon stated it 'purchases books through commercial channels to improve the products and services customers use,' suggesting this sourcing strategy may continue as companies compete for uncorrupted training data.

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Context & Analysis

Amazon's practice of sourcing rare books for AI training reflects a broader industry challenge: the finite supply of authentic human-written text online. As LLMs (AI models like ChatGPT) have saturated freely available internet content, companies have begun seeking alternative sources—Anthropic, for example, has already used illegally pirated books. The stakes are concrete: when LLMs train on too much AI-generated text, a phenomenon called 'model collapse' degrades their output quality, making pre-2022 human-written texts especially valuable.

Rare and out-of-print books are a particularly coveted resource because they are nearly impossible to find on the internet, yet contain guaranteed human authorship. Amazon's centralized scanning operation at its VGT3 facility in Las Vegas—identifiable by its dinosaur-holding-a-book symbol—suggests the company is investing infrastructure in this acquisition strategy. The fact that Amazon publicly frames this as purchasing books 'through commercial channels' indicates that such sourcing, while potentially destructive to irreplaceable cultural artifacts, is now an accepted part of AI development economics.

FAQ

How did 404 Media discover this?
404 Media placed a tracking device in a rare book that ultimately arrived at Amazon's Las Vegas facility known as VGT3.
Why are rare and out-of-print books valuable for AI training?
Texts published before 2022 are guaranteed to have been written by humans, not AI, which helps LLMs avoid 'model collapse'—a degradation in output quality that occurs when models ingest too much AI-generated text.
What did Amazon say about this practice?
Amazon told 404 Media in a statement that it 'purchases books through commercial channels to improve the products and services customers use.'

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