INTERP ATLAS

method

sparse-autoencoder

4 entries

2024 (2)

IA-008

Golden Gate Claude has no visual form and shows , about .

Anthropic Interpretability team (individual contributors not named on the post) · Anthropic

For 24 hours Anthropic put a version of Claude 3 Sonnet online with its 'Golden Gate Bridge' feature clamped to roughly ten times maximum activation, so anyone could talk to a model that could not stop mentioning the bridge.

Turned an interpretability result into something the public could feel rather than read, and showed that a single identified feature exerts precise causal control over behaviour — not prompting, not fine-tuning.

HighRead the announcement post in full, 2026-08-06

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IA-003

Scaling Monosemanticity is showing , about and .

Adly Templeton; Tom Conerly; Jonathan Marcus; Jack Lindsey; Trenton Bricken; Brian Chen; Adam Jermyn; et al. · Anthropic

First demonstration that sparse autoencoders scale from toy models to a frontier production model, published as a browsable index of millions of features — including the Golden Gate Bridge feature that later became a public demo.

The moment interpretability stopped being a toy-model science, and the origin of the field's most famous public artefact.

HighRead the article; cross-referenced in BlueDot and ACX pieces, 2026-08-06

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2023 (2)

IA-002

Towards Monosemanticity is showing , about , and .

Trenton Bricken; Adly Templeton; Joshua Batson; Brian Chen; Adam Jermyn; Tom Conerly; Nicholas L. Turner; Cem Anil; Carson Denison; Amanda Askell; et al. · Anthropic

The paper that made sparse autoencoders the field's dominant method, published with a browsable interface over every extracted feature so readers could check the monosemanticity claim themselves rather than take the authors' word for it.

Turned a contested claim (features are more interpretable than neurons) into something a reader could audit by clicking.

HighRead the article and its setup/interface section, 2026-08-06

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IA-006

Neuronpedia is and showing and , about .

Neuronpedia
2026-08-12

Johnny Lin (creator), with community contributors · Neuronpedia / Decode Research

The field's central public platform. It hosts feature dashboards, attribution graphs, steering and demos across dozens of open models — including the official interactive releases for Anthropic's Jacobian Lens, Natural Language Autoencoders, Assistant Axis and Circuit Tracer, and DeepMind's Gemma Scope.

The closest thing interpretability has to a public commons, and the reason a frontier-lab result can now be poked at by an outsider the week it ships.

HighRead the neuronpedia.org homepage in full, 2026-08-06

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