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Fern

Fern

Fern builds high-fidelity, learned simulators that let robotics teams evaluate and train policies at scale without physical hardware.

Operating headquarters

San Francisco, CA, US🇺🇸

Founded

Accelerator

Y Combinator W26

Fern is a robotics evaluation and reinforcement-learning platform operated by Ishiki Labs. It trains action-conditioned world models directly from real robot data, enabling teams to benchmark and improve policies without running them on physical hardware. The platform outputs high-fidelity RGB rollouts from end-effector commands and supports closed-loop evaluation, apples-to-apples comparisons, and reproducible testing across tasks and research groups.

Founded in 2025 and part of the Y Combinator Winter 2026 batch, Fern serves policy developers, RL researchers, and robotics companies that want managed cloud evaluation or custom world models trained on their own teleoperation data.

Fern - Products & Services

Fern Robotics Evaluation Platform
Fern learns world models from robot data for scalable policy evaluation and training.
Competing Products

Fern - Similar Companies

Saturn Dynamics

saturndynamics.com

One Robot

onerobot.io

Game of Drones

gameofdrones.com

Most Robotic

mostrobotic.com

Google DeepMind

deepmind.google

NVIDIA

nvidia.com

Physical Intelligence

Cyberbotics

cyberbotics.com

XDOF

xdof.ai

Fluidize

fluidize.ai

Polymath

polymathlabs.ai

Miru

mirurobotics.com

PickNik

picknik.ai

Mind Robotics

mindrobotics.com

Formant

formant.io

Fern - Quick Facts

Who are Fern's competitors?

Companies similar to Fern include Saturn Dynamics, One Robot, Game of Drones and Most Robotic.

When was Fern founded?

Fern was founded in 2025.

Where is Fern's headquarters located?

Fern's headquarters is located in San Francisco, CA, US.

How many employees does Fern have?

Fern has 2 employees as of Jul 4, 2026.

Fern - Classification

Industry: Artificial Intelligence
Robotics
Geographic Exposure: Global

Model: Platform
Revenue: SaaS
Software
Customer: B2B
Enterprise