Overview
Founder and CEO of Tractatus AI (PitchBook shows that it has been renamed Letter AI, YC S, Chicago), completed USD 40 million Series B round led by Battery Ventures in February. Letter AI is an AI native revenue empowerment platform (source: PitchBook profile/letter.ai official website/YesPress) (2, 2026, 23).
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Tractatus AI（PitchBook显示已更名为Letter AI，YC S23，芝加哥）创始人兼CEO，2026年2月完成Battery Ventures领投的4000万美元B轮，Letter AI为AI原生收入赋能平台（来源：PitchBook profile/letter.ai官网/YesPress）。