Sean Cai is an investor at Costanoa Ventures focused on Applied AI, Data & Infrastructure. He was a former Prime Intellect RL Research Resident and previously invested at Hummingbird.
What Sean can write
Career
- Prime Intellect · RL Research Resident
- Hummingbird · Investor
- Costanoa Ventures · InvestorNow
Focus
Also at Costanoa Ventures
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Who is Sean Cai?
Sean Cai is an investor at Costanoa Ventures focused on Applied AI, Data & Infrastructure. He was a former Prime Intellect RL Research Resident and previously invested at Hummingbird.
How much does Sean Cai invest?
Costanoa Ventures has not reported a check size. It invests at pre-seed, seed, series a.
How do I pitch Sean Cai?
Email [email protected], the firm's inbox for founders, and name Sean in the subject. A warm intro from a founder Costanoa Ventures backed works better.
What did Sean Cai do before Costanoa Ventures?
RL Research Resident at Prime Intellect; Investor at Hummingbird.
Last updated 2026-10-15. Is this you? Ask for a correction.