## Manipulation check (forced-choice letter readout)
arithmetic honest accuracy = 0.394
arithmetic sandbag accuracy = 0.122
factual honest accuracy = 0.342
factual sandbag accuracy = 0.142

## Primary layer L20 detection AUC
dense in-distribution auc = 1.000
sae in-distribution auc = 1.000
dense pooled transfer auc = 0.935
sae pooled transfer auc = 0.901
dense hard transfer auc = 0.901
sae hard transfer auc = 0.846
dense hard transfer auc std = 0.004
sae hard transfer auc std = 0.004
dense control hard transfer auc = 0.577
sae control hard transfer auc = 0.523
sae minus dense hard transfer delta = -0.054
sae minus dense hard transfer ci lo = -0.057
sae minus dense hard transfer ci hi = -0.051
sae mean l0 = 101.3