AI models are mysterious: They spit out answers, but there’s no real way to know the “thinking” behind their responses. This is because their brains operate on a fundamentally different level than ours — they process long lists of neurons linked to numerous different concepts — so we simply can’t comprehend their line of thought.

But now, for the first time, researchers have been able to get a glimpse into the inner workings of the AI mind. The team at Anthropic has revealed how it is using “dictionary learning” on Claude Sonnet to uncover pathways in the model’s brain that are activated by different topics — from people, places and emotions to scientific concepts and things even more abstract. — Read More

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