Gabriel Bayomi

Gabriel Bayomi is co-founder and CEO of Openlayer, a platform for evaluating and monitoring AI systems. With Rishab Ramanathan and Vikas Nair he raised a $14.5M Series A in 2025 to give enterprises a clearer workflow for AI reliability.

YC roots and the eval gap

Openlayer's YC materials describe a "Vercel-like workflow for AI evals" - versioned checks, collaborative review, and production monitoring instead of ad-hoc notebooks. Bayomi's public bios emphasize making evaluation a first-class engineering practice.

Series A for enterprise reliability

The May 2025 Series A funded deeper enterprise features as buyers moved from demos to regulated workloads. Coverage of the round casts Openlayer as a quiet safety net for model and agent behavior rather than a prompt playground.

On evals as shipping infrastructure

He argues teams will not scale AI features if they cannot see quality the way they see uptime. That framing keeps Openlayer next to CI/CD conversations instead of research-only tooling.