Stop Probing, Start Coding: Why Linear Probes and Sparse Autoencoders Fail at Compositional Generalisation

arXiv:2603.28744 · cs.LG · Submitted 2026-03-30 · Read on arXiv

cs.LG

Submitted: 2026-03-30

Updated: 2026-10-07

Terminology

• Linear probe — 1× in this paper · explained in 2 episodes
• Sparse Autoencoders (SAEs) — 1× in this paper · explained in 3 episodes
• Sparsity — 1× in this paper · explained in 4 episodes

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