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About this paper

Anton Korznikov, Alexey Dontsov, Elena Tutubalina

The Sparse Transformer provides a language-model testbed with known neuron value vectors by retaining only the top eight of 8,192 post-ReLU activations per token. It scores 0.866 on automated AutoInterp, compared with 0.605 for a loss-matched dense model. A Transcoder also recovers value vectors better than an SAE, but results concern five-layer TinyStories models, not production-scale interpretability.

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