Jeff Ladish: Claude Is a Category of Models, Not a Single AI

JeffLadish · x · 2026-11-05

AI safety researcher Jeff Ladish offers a conceptual distinction: treating Claude as a single AI is misleading — Claude is a category containing every instance of every version of every Anthropic model. He argues that a "country of geniuses in a data center" would be made of very different Claude models than, say, Fable 5.1, underscoring how wildly version-to-version capability differences can diverge from intuition.

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