Rubric AI

Rubric AI is a Y Combinator-backed company that reasoning and verification infra for AI. The company participated in the Winter 2026 batch of Y Combinator.

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.

Rubric AI was part of Y Combinator's Winter 2026 cohort, has a team of approximately 2 employees, and is actively operating.