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About
Lucy Cai studied computer science and AI at MIT and conducted robotics research at MIT's LIS Lab. Previously, she held roles at SpaceX and Amazon Web Services.
CTO at InstanceYC S26
Intro paths
Lucy went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Ankit Gupta, General Partner at Y Combinator — the partner who ran Instance's batch and knows the company first-hand. YC profile ↗
In turn, Lucy can intro founders to Instance's investors below.
Instance's investors · 4
Co-founders at Instance

Frequently asked questions
- Who is Lucy Cai?
- Lucy Cai studied computer science and AI at MIT and conducted robotics research at MIT's LIS Lab. Previously, she held roles at SpaceX and Amazon Web Services.
- Where does Lucy Cai work?
- Lucy Cai is CTO of Instance.
- What companies did Lucy Cai found?
- Lucy Cai founded Instance.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
Massachusetts Institute of Technology mafia1,487
Also came through, then founded or led a company.
Phillips Exeter Academy mafia61
Also came through, then founded or led a company.
Blackrock Neurotech mafia3
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Instance's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights
















