Sean Cai⁠

I invest in AI startups and build RL environment software.

Experiences

Follow Sean for more...

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Sean Cai⁠

I invest in AI startups and build RL environment software.

Experiences

Follow Sean for more...

Sean Cai⁠

I invest in AI startups and build RL environment software.

Experiences

Follow Sean for more...

By using this service, you agree to the Terms of Service and Privacy Policy.

Sean Cai⁠

About

Experiences

Investor@Costanoa VenturesInvest in early-stage AI and data startups

Weekend Partner@Weekend FundBacked 12 AI startups in 2025

Founder@Costanoa VenturesMade my own bet on RL environments

Venture@General CatalystHeaded seed investing for GCVF

Visiting Analyst@Hummingbird VenturesDid stints at 7 venture and PE firms

Founder and CEO@TourableBrought in 800+ tour guides before launch

Bachelor of Science@Cornell UniversityRan Startup Office Hours as a student

Early lifeRaised at Plug and Play, then got kicked out

Follow Sean for more...

Sean Cai⁠

About

Experiences

Investor@Costanoa VenturesInvest in early-stage AI and data startups

Weekend Partner@Weekend FundBacked 12 AI startups in 2025

Founder@Costanoa VenturesMade my own bet on RL environments

Venture@General CatalystHeaded seed investing for GCVF

Visiting Analyst@Hummingbird VenturesDid stints at 7 venture and PE firms

Founder and CEO@TourableBrought in 800+ tour guides before launch

Bachelor of Science@Cornell UniversityRan Startup Office Hours as a student

Early lifeRaised at Plug and Play, then got kicked out

Follow Sean for more...

Sean Cai⁠

About

Experiences

Investor@Costanoa VenturesInvest in early-stage AI and data startups

Weekend Partner@Weekend FundBacked 12 AI startups in 2025

Founder@Costanoa VenturesMade my own bet on RL environments

Venture@General CatalystHeaded seed investing for GCVF

Visiting Analyst@Hummingbird VenturesDid stints at 7 venture and PE firms

Founder and CEO@TourableBrought in 800+ tour guides before launch

Bachelor of Science@Cornell UniversityRan Startup Office Hours as a student

Early lifeRaised at Plug and Play, then got kicked out

Follow Sean for more...

Sean Cai⁠

About

Experiences

Investor@Costanoa VenturesInvest in early-stage AI and data startups

Weekend Partner@Weekend FundBacked 12 AI startups in 2025

Founder@Costanoa VenturesMade my own bet on RL environments

Venture@General CatalystHeaded seed investing for GCVF

Visiting Analyst@Hummingbird VenturesDid stints at 7 venture and PE firms

Founder and CEO@TourableBrought in 800+ tour guides before launch

Bachelor of Science@Cornell UniversityRan Startup Office Hours as a student

Early lifeRaised at Plug and Play, then got kicked out

Follow Sean for more...