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Sparse Autoencoding on Llama-3.2-1B Layer 12 activations (held-out)

0.499Relative ErrorDense-SAE
0.488680.558340.6280.69766Jul 2, 2026

Evaluation results

MethodLinks
Dense-SAELayer=12, m=2,048, n=16,384, k=64, Storage ratio=1×2026.070.4990.958
Expander d=102Layer=12, m=2,048, n=16,384, k=64, Expander degree (d)=102, Storage ratio=20×2026.070.720.758
Expander d=30Layer=12, m=2,048, n=16,384, k=64, Expander degree (d)=30, Storage ratio=68×2026.070.7420.707
Expander d=7Layer=12, m=2,048, n=16,384, k=64, Expander degree (d)=7, Storage ratio=293×2026.070.7570.608