When Models Remember Too Much: The Hidden Economy of Memorization in LLM Training
Opening — Why this matters now Large language models have an uncomfortable habit: they remember things they were never explicitly asked to remember. Not in the polite, human sense of “learning patterns,” but in the more literal sense of memorizing chunks of training data. For years, this was treated as a side effect—occasionally embarrassing, sometimes risky, but mostly tolerated. Now it’s becoming economically relevant. Training costs are rising, data pipelines are bloated, and enterprises are quietly asking a sharper question: ...