
Barret ZophResearcher
Google DeepMind
Vice President of Research
via Google DeepMind
Researcher · Engineer

Research Engineer at Google DeepMind
Lieberum studies how language models perform computations internally. He co-authored a mechanistic account of grokking and helped build Gemma Scope, Google DeepMind's open collection of sparse autoencoders for inspecting Gemma models.
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Last editorial review: July 28, 2026