Isabelle Lee @ ICML
206 posts

Isabelle Lee @ ICML
@wordscompute
ml/nlp phding @ usc, currently visiting harvard; training & interpretability & reasoning


New Anthropic research: Natural Language Autoencoders. Models like Claude talk in words but think in numbers. The numbers—called activations—encode Claude’s thoughts, but not in a language we can read. Here, we train Claude to translate its activations into human-readable text.







Copying → morphology/translation → basic arithmetic → complex reasoning & math. Across every model family we tested, LLMs acquire skills in roughly the same order during pretraining. Can we use this to predict what a model will learn next, just from its internals? 🧵



We’re not saying all interpretability work must be immediately actionable— curiosity-driven research still matters. But actionability is a high bar: understanding that works outside the lab. To make your next project more actionable, use our checklist >>

Our ICML 2025 workshop on Actionable Interpretability drew massive interest. But the same questions kept coming up: What does "actionable" mean? Is it achievable? How? We're ready to answer. 🧵




