New blog argues training SAEs on dense models yields strong sparse models cheaply

IgorCarron · x · 2026-10-19

Antoine Chaffin amplified a new blog post, praising its authors and calling it "very timely": the future is sparse, and training SAEs on top of dense/LI models is a practical way to get strong sparse models easily. The tweet doesn't detail the technique — see the original blog for methods and experiments.

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