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Lukas Frei — LessWrong

Lukas Frei

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Lukas Frei

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Do AI Biorisk Thresholds Need Intermediate Warning Levels?

In the Claude Mythos/Fable 5 system card, Anthropic states that the model meets non-novel (CB-1) but falls short of novel (CB-2) biological/chemical weapons development capability thresholds. Despite this difference in conclusions, they introduce protective measures in response to both. This is not the first time there's been a gap between...

Frontier Models Still Lag Behind Humans at Robust Belief-State Tracking

Large-scale cooperation has been a central feature of humanity’s ability to advance technology and build complex societies. Much of this cooperation is reliant on the ability to act in ways informed by the beliefs and intentions of others. This capacity, also known as Theory of Mind (ToM), includes belief-state tracking,...