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The role of chief scientist in a large-scale AI organization is a specific technical function, not a title.
It sits between research and engineering: the person who arbitrates what the lab pursues, which directions receive sustained resources, and how frontier work eventually reaches products.
Google confirmed on Wednesday that Jeff Dean is leaving after 27 years at the company, with the departure coinciding with a broader reshuffle of its AI divisions.
What the reshuffle means in practice When a chief scientist exit and a divisional restructuring arrive simultaneously, the two events are usually connected.
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