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Ameisen and colleagues: cross-layer-transcoder circuit tracing

Contribution grade

Mechanistic interpretability · Human-designed research method or resource

Reference score120,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Built prompt-specific attribution graphs using cross-layer transcoders as an interpretable replacement for model MLP computation, with intervention and faithfulness checks.

Scientific scope

Built prompt-specific attribution graphs using cross-layer transcoders as an interpretable replacement for model MLP computation, with intervention and faithfulness checks. Attention patterns and normalization are frozen; reconstruction errors, missing attention circuits and incomplete mechanisms limit explanations. Graphs are not complete or globally faithful model proofs.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Attention patterns and normalization are frozen; reconstruction errors, missing attention circuits and incomplete mechanisms limit explanations. Graphs are not complete or globally faithful model proofs.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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