Interpretability & Safety · 2020

Zoom In: An Introduction to Circuits

Chris Olah, Nick Cammarata, Ludwig Schubert, Gabriel Goh, Michael Petrov, Shan Carter

Argued that neural networks can be reverse-engineered into human-understandable circuits — features connected by weights — turning interpretability from vague intuition into a study of concrete mechanisms.

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Plain-language summary

The essay lays out three claims: networks contain features (directions that detect meaningful concepts), features are connected by weighted circuits that implement algorithms, and analogous features and circuits recur across models. Working through vision networks, it shows curve detectors and other units that can be read and tested. It set the agenda and vocabulary for the mechanistic-interpretability program that followed.

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Provenance

Record ID
P-500
Record created
2026-07-13
Last reviewed
2026-07-14
Record version
2

Citation caveat: Citation metadata is approximate and marked unverified in the source dataset.