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Edition #19

Amazon Is Shredding Books for Clean Data

Dan Toma·August 18, 2026·4 min read
Key Takeaway

The public internet has been exhausted as a training source, and text written before the AI era is now valuable precisely because no model wrote it. Clean human material has become a commodity with a price, including yours.


FAQ

Why are AI companies paying for old physical books?

Because text published before generative AI is uncontaminated by model output. Training repeatedly on AI-generated text causes model collapse, where quality and diversity degrade, so pre-AI human writing has become a scarce and valuable input.

What is model collapse?

It is the degradation that happens when models are trained on data produced by other models. Each generation narrows the distribution and compounds earlier errors, which makes output progressively blander and less reliable.

Is my company’s internal content valuable as AI training data?

Often yes, particularly support transcripts, technical documentation, and internal knowledge written by people in your specific domain. It is usually more valuable applied internally, where it turns a generic model into one that answers with your operational knowledge.

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