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James Detweiler invests in AI as a general partner at Felicis, where he helped establish the Felicis Fellows program for AI researchers. James previously invested at Zetta Venture Partners and SVB Capital, backing startups and venture funds.

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James Detweiler invests in AI as a general partner at Felicis, where he helped establish the Felicis Fellows program for AI researchers. James previously invested at Zetta Venture Partners and SVB Capital, backing startups and venture funds.

Career

James Detweiler holds a Bachelor’s degree, Physics and Mathematical Finance; summa cum laude from Dartmouth College.

General Partner at Felicis until PresentLeads and sources investments in AI, robotics, and software and helped launch Felicis Fellows.
Investor at Zetta Venture Partners from 2020 to 2022Invested in AI startups before joining Felicis.
Investor at SVB Capital from 2018 to 2020Invested in startups and venture funds and served as a board observer at Shield AI.

Investing Announcements

Cosigns Received

FelicisEarly-stage investing across AI, cybersecurity, energy resilience, and health.
First Cosign
He has an exceptional ability to identify and earn the trust of founders
Source
Aydin SenkutFounder and Managing Partner at Felicis Ventures
Second Cosign
You’re a role model with your grit and hustle
Source
forbes.com

James Detweiler — Forbes 30 Under 30 2026

Forbes profile covering Detweiler's investments and Felicis Fellows work.

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felicis.com

The Agentic Web

James’s 2024 map of agent infrastructure, constraints and promising application categories.

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felicis.com

The Great Splintering

James’s thesis on how cheap software shifts value toward trust, judgment and human connection.

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felicis.com

The AI Partition Function

How AI products can continually adjust which tasks need human judgment and which agents can perform.

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James's Collections

James's Lists

In these lists

Cosigns Given