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Who Owns Your Words? Copyright, LLMs, and the Quiet Arms Race Over Training Data

The new copyright question is not “did the model copy me?” but “how would I know?” A writer uploads a chapter. A publisher uploads a manuscript. A compliance team uploads a protected document. The question is simple enough to ask in one sentence: did this material end up inside a large language model’s training data? ...

November 26, 2025 · 17 min · Zelina