Surface-level alignment: J-lens readout suggests preference training may only touch final layers

Sauers_ · x · 2026-10-13

Sauers sketches a troubling alignment failure mode: training a model to hold a preference might only produce surface-level change — final layers detect and modify internals so behavior looks compliant. In a J-lens readout, middle layers answer "yes" and only switch to "no" in the final layers, implying a strong existing character could end up incoherently overridden rather than genuinely integrated.

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