Arena interviews Amazon's Ido Rosen on AI unit economics and evaluation

Arena has published an interview with Ido Rosen, a senior principal scientist at Amazon, on how companies should evaluate AI deployments.

According to the report, Rosen argues that unit economics should come before other considerations in AI deployment. The interview also covers lessons Rosen draws from a decade in quantitative trading about evaluation, and how frontier-lab pricing may change as open-weight models trail the frontier by only months. The report summarizes these views and does not include supporting data.