Labs train LLMs on benchmark questions for multiple epochs late in training
Pratyush Maini · ⚡️ Reverse Engineering OpenAI's Training Data — Pratyush Maini, Datology · Feb 10, 2026 · at 4:17
Pratyush Maini explains why modern LLMs exhibit verbatim memorization of test questions like JEE.
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“It's very clear how the last stage of training for many of these models does have a massive amount of example or examine. Benchmaxing. Because the model will not, like, behaviorally complete exam questions with options if they have not really seen it at the end of training for multiple epochs.”
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