# roon says circuit-level interpretability tools may beat CoT monitoring

> Original title: this stuff is fascinating; it will lead to better 'lens' technology than the blind reconstructions. with luck, it'll prove far superior ...

- Source: roon
- Published: 2026-11-12T05:54:17.000Z
- Bad Influence: https://badinfluence.news/items/u0aztwxqv4psd8u8sq0xpvuru
- Original: https://x.com/tszzl/status/2120757053295862195

## Summary

roon says interpretability work on neuron-level circuits will lead to better "lens" technology than blind reconstructions, and may prove more effective than chain-of-thought monitoring. The post links to @_a9lim's Neuron Lens, which now shows circuits and traces how activations flow across features.

## Post

this stuff is fascinating;  it will lead to better 'lens' technology than the blind reconstructions. with luck, it'll prove far superior than CoT monitoring ever was

## Quoted post @_a9lim

> https://neuron-lens.com now shows circuits! we traced how activations flow across features, and it turns out that they're often very legible. as always, this was done with @treetowntree!

https://x.com/_a9lim/status/2120596010506551431