Fern
YC W26 · Active · RL environments for robotics companies
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
 Lambda RoboticsShared: infrastructure, roboticsActiveAI, Devtools | AI, Devtools | Active | YCF26 |
 MonteShared: continual learning, infrastructureActiveAI, Devtools | AI, Devtools | Active | YCS25 |
 hiloopShared: continual learning, infrastructure, startingActiveAI, Devtools | AI, Devtools | Active | YCS26 |
 EnactShared: robotics, environment, modelActiveAI | AI | Active | YCS26 |
 MiruShared: robotics, infrastructureActiveDevtools | Devtools | Active | YCS24 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
 RellingShared: robotics, infrastructureActiveAI, Devtools | AI, Devtools | Active | YCS25 |
 HubShared: infrastructure, roboticsActiveAI, Data, Devtools | AI, Data, Devtools | Active | YCX26 |
 Miruvor AIShared: continual learning, modelNot statedAI | AI | Not stated | 500 GlobalSF 37 |
 One RobotShared: robot policy, robotics, environmentActiveOther | Other | Active | YCW26 |
 EncordShared: infrastructure, robotics, productionActiveAI, Devtools | AI, Devtools | Active | YCW21 |
Also from W26 in Developer tools
All of W26| Company | Category | Status |
|---|---|---|
 Autumn AIEverything on anyone.ActiveDevtools | Devtools | Active |
 CascadeDistilling Proprietary IntelligenceActiveDevtools | Devtools | Active |
 Crosslayer LabsProtect, monitor and defend your Internet presenceActiveDevtools | Devtools | Active |
 Klaus AIFast and Safe OpenClaw on the cloudActiveDevtools | Devtools | Active |
 REV1Claude Code for Mechanical EngineersActiveDevtools | Devtools | Active |
 shortkitMedia infra for consumer appsActiveDevtools | Devtools | Active |
Founders
- Amit YadavFounder/CEO
- Robert XuFounder
About Fern
Fern provides RL environments for robotics companies powered by a foundational world model. Companies can plug and play their robot policies completely in software with varying starting scenes of their production environment, and we'll produce RL heads on top of your existing policies to improve speed and success rate. Our customers get a continual learning flywheel where their production robots improve every week.
- YC batch
- W26 · Winter 2026
- Status, per YC
- Active
- Category
- Developer tools
- Team size
- 2
- Founded
- 2025
- Checked
- 35m ago
YC tags: Robotics, Infrastructure
Fern: questions
Which YC batch was Fern in?
Fern was in Y Combinator's Winter 2026 batch (W26).
Is Fern still active?
Y Combinator lists Fern as active.
Who founded Fern?
Fern's founders, as listed on its YC page: Amit Yadav (Founder/CEO), Robert Xu (Founder).
Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.