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Steven Sinofsky

low confidence · updated 2026-07-23

Former president of Microsoft's Windows division; a16n board partner; writes the Hardcore Software newsletter. Argued in July 2026 that the US anti-distillation push amounts to regulatory capture.

Steven Sinofsky is a former president of Microsoft's Windows division, a board partner at Andreessen Horowitz, and the author of the Hardcore Software newsletter on the history and practice of the software industry.

Positions on AI policy

In a July 22, 2026 essay ("Distillation Is Not Anti-American, Weaponizing It Is"), Sinofsky argued that the Trump administration's push against Chinese distillation of US frontier models is "regulatory capture," writing that treating distillation as intellectual-property theft "is somewhat rich when you consider how [labs] acquired their training data" (Source: hardcoresoftware.learningbyshipping.com). The essay responded to OSTP Director Michael Kratsios's accusation that Moonshot AI distilled Anthropic's Fable model, and to Treasury Secretary Scott Bessent's statement that distillation sanctions were on the table.

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