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Lijie Chen is an Assistant Professor at the Department of Electrical Engineering and Computer Sciences at UC Berkeley.
3
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Jun 2026 — Oct 2026
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Generalization Dynamics of LM Pre-training
AlphaXivcautiousOct 1, 2026
“Co-authored research on mode-hopping phenomenon during language model pre-training.”
OpenAI's Unreleased Model Astra Solves Ten Major Open Mathematics Problems
The ZvicautiousAug 4, 2026
“Sent writeup of Astra's proof of quantum parallel repetition theorem to colleagues.”
From napkin sketch to research breakthrough
sciencenews.orgmixedJun 9, 2026
“OpenAI colleague of Bubeck; stated the new model is better at generating 'I cannot solve it' responses when encountering difficult problems.”