Hey, I'm Sachi.

I lead growth and venture at Sentient Foundation. I care deeply about open-source AI, business and operations, and finding ways to support the broader open-source ecosystem.

Before Sentient, I was a founding member of Polygon Ventures. There, I led our $100M ecosystem fund and spearheaded a $500M raise backed by Sequoia, Lightspeed, SoftBank, Tiger Global, Galaxy Digital, and Dragonfly.

I'm also an investor at Symbolic Capital and spend my free time angel investing and advising founders.

I studied electrical engineering at Caltech - scientist at heart. I speak three languages, love to travel, and I'm always happy to connect.


Open Commons

I host Open Commons, a long-form podcast exploring how advanced AI is built, shared, and governed in the open.

Open Commons podcast artwork

Episode Open Commons - The Economic Case for Open AGI with Pramod Viswanath

Episode Open Commons - AI Knows Too Much About You with Sewoong Oh

Episode Open Commons - AGI Will Never Be Yours with Emad Mostaque


Work

2024 - Present Sentient Foundation - Director of Growth and Venture

2024 - Present Symbolic Capital - Investor

2021 - 2024 Polygon Ventures - Founding Member, Ecosystem Fund Lead


Let's connect

Reach out if you want to talk about open-source AI, startups, investing, partnerships, podcasts, panels, or interviews.

Email

Elsewhere: X, LinkedIn, Open Commons, YouTube.

Copyright 2026 Sachi Kamiya

Sachi rhymes with Versace.