Open-sourcing circuit tracing tools

Michael Hanna, Mateusz Piotrowski, Emmanuel Ameisen, Jack Lindsey, Johnny Lin, Curt Tigges — 2025-05-29 — Anthropic, Decode Research — Anthropic Blog

Summary

Announces open-source release of circuit-tracing tools that generate attribution graphs revealing internal computational steps in language models, with library support for popular open-weights models and interactive visualization interface.

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