🦊/Companies

Rational

YC S26

San Francisco, US · Founded 2026 · 2 employees · Hiring · 2 known investors

Find your way into Rational

408 people in our graph share verified history with the Rational team — schools, employers, funds. One of them is your warm intro.

Avi Bharadwajunlockedknows Jibril Moinuddin · together at TrueFoundry (overlapped)
knows the team · via University of Michigan
×5knows the team · via OpenAI
×2knows the team · via University of Michigan College of Engineering
×3knows the team · via Tencent

Rational provides AI agents that automate recurring accounts payable, close coordination, reconciliation, and document management tasks for finance teams, while keeping approvals and final decisions with human staff.

Founders & leadership· Y Combinator alumni (S26)

Rational was founded in 2026 by Jibril Moinuddin and Christ Xu.

JMJibril Moinuddin
Jibril Moinuddinin𝕏Co-FounderJibril Moinuddin is CEO of Rational and previously founded STEMplicity Education. He attended the University of Michigan.
CXChrist Xu
Christ XuinCo-FounderChrist Xu is a CTO at Rational who previously served as a Senior Software Engineer at Tencent and held roles as an ML Engineer at Jane Street and Software Engineer intern at OpenAI. He has a background in competitive mathematics and algorithm research.

Investors · 2

In the news

Frequently asked questions

What does Rational do?
Rational provides AI agents that automate recurring accounts payable, close coordination, reconciliation, and document management tasks for finance teams, while keeping approvals and final decisions with human staff.
Who founded Rational?
Rational was founded by Jibril Moinuddin, Christ Xu in 2026.
Who are Rational's investors?
Rational's investors include Y Combinator, Vela Partners.
Where is Rational headquartered?
Rational is headquartered in San Francisco, US.