YC W26 · Active

Rubric AI

Reasoning and verification infra for AI

Class: Winter 2026
Status: Active
Industry: B2B
Location: New York City, NY, USA
Team size: 1

About

Rubric AI (backed by Y Combinator) is the reasoning and verification infrastructure for AI. We're building the human and computational layer that turns expert judgment into training signals for the world's most consequential AI systems.