Where does Sebastian Crossa work?

Sebastian Crossa is Co-Founder of LLM Stats.

What companies did Sebastian Crossa found?

Sebastian Crossa founded LLM Stats.

Where did Sebastian Crossa go to school?

Sebastian Crossa studied at Tecnológico de Monterrey (Computer Science, Computer Science); Tecnológico de Monterrey (High School/Secondary Diplomas and Certificates).

Sebastian Crossa

Founder

Co-Founder at LLM Stats

New York, New York, United States

FoundedLLM Stats · YC

About

Sebastian Crossa is a founding engineer who has worked at Micro, an email infrastructure company backed by a16z, and Atrato Pago (W21), a fintech startup. He co-founded LLM Stats.

Co-Founder at LLM Stats YC S25

Intro paths

Sebastian went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.

Their group partner at YC was Jon Xu, General Partner at Y Combinator — the partner who ran LLM Stats's batch and knows the company first-hand. YC profile ↗

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In turn, Sebastian can intro founders to LLM Stats's investors below.

LLM Stats's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2025

Co-founders at LLM Stats

Jonathan ChávezFounder

Experience

ZeroEvalCo-Foundercurrent2025 — presentNew York City Metropolitan Area
LLM StatsCo-Foundercurrent2025 — presentNew York City Metropolitan Area
Micro HQFounding Engineer2023 — 2025New York, United States
Launch HouseSoftware Engineer2021 — 2023
Major League HackingOpen Source Fellow2020
Atrato (YC W21)Software Engineer2019Guadalajara, Mexico Metropolitan Area

Skills & more

User Experience Design (UED)3CLI3Amazon Web Services (AWS)3Front-End Development1Full-Stack Development1DatabasesWeb Services APIProduct DevelopmentJavaScript3React.js3Leadership3Entrepreneurship1

+12 more

iOS DevelopmentUiUser Experience (UX)Front-end DevelopmentPythonSwiftMicrosoft ExcelGithubDesign ThinkingTeamworkXcodeFinal Cut Pro

Languages English · Spanish

From Sebastian's professional profile.

Frequently asked questions

Who is Sebastian Crossa?: Sebastian Crossa is a founding engineer who has worked at Micro, an email infrastructure company backed by a16z, and Atrato Pago (W21), a fintech startup. He co-founded LLM Stats.
Where does Sebastian Crossa work?: Sebastian Crossa is Co-Founder of LLM Stats.
What companies did Sebastian Crossa found?: Sebastian Crossa founded LLM Stats.
Where did Sebastian Crossa go to school?: Sebastian Crossa studied at Tecnológico de Monterrey (Computer Science, Computer Science); Tecnológico de Monterrey (High School/Secondary Diplomas and Certificates).