lens-methods

a9lim and treetowntree launched neuron lens, a browsable database and tooling for reading every neuron and attention head in Qwen3-8B and Gemma 4 12B using R-lens, S-lens, and mid-lens variants, with steering predictions correct over 90% of the time.

OmniLens is a scalable lens method for interpreting LLM hidden states, using low-rank translators and Subset-KL to reduce parameters and memory, enabling a dense ensemble of 482 lenses on LLaMA-3.3-70B at substantially lower cost.