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Merullo: Current machine unlearning techniques merely suppress data rather than removing it

Jack Merullo · [State of MechInterp] SAEs in Production, Circuit Tracing, AI4Science, "Pragmatic" Interp — Goodfire · Dec 31, 2025 · at 6:44

Jack Merullo, researcher at Goodfire, discusses the limits and reality of current machine unlearning and data removal methods in LLMs.

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“I would describe it more as not unlearning, but maybe suppression. I think there's, like, really, like, I guess, guarantees that you've fully removed information from a model is, is, I don't think it's been convincingly showed anywhere yet”

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Jack Merullo Dec 31, 2025 ▶ 6:02 [State of MechInterp] SAEs in Production, Circuit Tracing, AI4Science, "Pragmatic" Interp — Goodfire
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