A new University of Chicago study reveals a dramatic brain drain from academia to tech companies as AI salaries in industry have more than tripled over two decades. While top AI researchers in academia saw minimal pay increases, industry compensation soared from $595,999 to nearly $2 million between 2001 and 2021. The result: two-thirds of AI researchers now work in industry, up from less than half in 2001.

Beyond salary disparities, the study highlights concerning trends in knowledge production. Researchers moving to industry become less likely to publish papers and more inclined to file patents, shifting from open scientific collaboration to proprietary research. Elite knowledge workers across disciplines are being lured not just by money but by access to cutting-edge computing resources that only large tech companies can provide.

The gender gap in AI research adds another dimension to this exodus. While academic AI research has become more diverse with women's representation increasing from 16% to 29% since 2000, industry remains predominantly male. This concentration of talent and ideas in a small number of male-dominated companies could have lasting implications for how AI technology develops and who benefits from its advances.