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Standard proxy metrics overestimate sparse autoencoders' performance on downstream interpretability tasks.

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These results suggest the existing proxy metrics overstate SAE quality on downstream tasks, motivating an audit of the proxies themselves.

Are Sparse Autoencoder Benchmarks Reliable?preprintextraction 0.70

Chanin, David · arXiv.org · May 18, 2026 · original

Drawn from the cited findings that supervised baselines beat SAEs on probing and steering

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