The 'pain direction' doesn't replicate across model sizes, researcher doubts its definition
rgblong · x · 2026-10-08
A researcher adds nuance to interpretability work on a 'pain direction' axis: reduced 'relieve pain' responses hold only for 32B (56% vs 81%) while 72B shows near parity (76% vs 74%). He argues the axis's anomalous behavioral effects deepen doubts about how it's defined, warning it isn't necessarily a pain direction at all.
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