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Fern

Fern is a YC Winter 2026 (W26) company. Team of 2.

  • Robotics
  • Infrastructure

About Fern

GPAgent's own fund-neutral profile, written from public information. Updated Oct 4, 2026.

Summary

Fern builds high-fidelity reinforcement learning and evaluation environments for robotics teams. It gives robotics developers the simulation infrastructure needed to train and test physical AI systems at scale, replacing the need to build custom evaluation tooling in-house.

Go-to-market

Robotics and physical AI teams are the target customer, reached through direct outreach via a meeting-scheduling flow on the website.

From the Y Combinator listing

How Fern describes itself in Y Combinator's public directory.

Enabling physical AI at scale.

Facts

Industry
B2B / B2B -> Infrastructure
Team size
2
Status
Active
Stage
Early

Founders (2)

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