OS3

YC S26 · Active · Affordable, intelligent humanoid robots built to deploy at scale

Competitors

Companies closest to OS3
Company	Category	Status	Program
NoriShared: humanoid robot, robotics data, hardwareActiveOther	Other	Active	YCS26
DarwinShared: humanoid robot, robotics, buildingActiveAI	AI	Active	YCF25
TwolabsShared: humanoid robot, robotics, deployActiveAI	AI	Active	YCX26
Piggy RoboticsShared: humanoid robot, robotics, expensiveActiveAI	AI	Active	YCF25
K-Scale LabsShared: humanoid robot, robotics, buildingInactiveAI	AI	Inactive	YC +1W24

Adjacent

Companies next to OS3
Company	Category	Status	Program
YonduShared: humanoid robot, robotics, designedActiveAI	AI	Active	YCW24
SynthiumShared: humanoid robot, scale, dataNot statedOther	Other	Not stated	Antler2025
AsimovShared: humanoid robot, train, collectActiveOther	Other	Active	YCW26
Eden RoboticsShared: humanoid robot, scale, buildingActiveAI	AI	Active	YCX26
ManifoldShared: too expensive, hardware, roboticsActiveOther	Other	Active	YCS26

Also from S26 in AI

All of S26

Company	Category	Status
DeepReach Inc.Network for Physical AI Data BusinessActiveAI	AI	Active
RobocurveEvals for robotsActiveAI, Devtools	AI, Devtools	Active
TensrRobotic factories that build robotsActiveAI	AI	Active
UltrasoniumMetal manufacturing, faster, cheaper, and more versatile.ActiveAI	AI	Active
6thSenseNervous System for Physical AIActiveAI	AI	Active
CarSignalThe AI Operating System for Auto Shops.ActiveAI	AI	Active

Founders

Rishabh ChananaFounder
Chris HaileyFounder

About OS3

OS3 is building the platform that makes intelligent robots accessible to every business. Today, robotics is constrained by two fundamental bottlenecks: hardware is too expensive to deploy at scale, and robots are difficult to train because high-quality robotics data is scarce and costly to collect. We built OS3 to solve both. Our two-person team designed and a US-made mobile humanoid robot for a fraction of the cost of commercial alternatives. On the intelligence side, instead of relying on expensive robot-generated training data, we trained our own video-action model on 150,000 hours of real-world video spanning more than 2,000 tasks. Every deployed robot feeds new experience into our reinforcement learning pipeline, self improving robot fleet over time. This creates a robot that can be deployed across industries to automate repetitive, physical work without requiring a new robot or training pipeline for every task. Our robots are already deployed in hotels, with customers now expanding the platform into biotech, hospitals, and data centers, including a wet lab at Stanford. Our mission is to do for robotics what Apple did for personal computing: take technology that was once expensive, specialized, and inaccessible and make it powerful and usable at massive scale. We’re building toward a world with billions of intelligent robots, and OS3 is the platform that makes that possible.

YC batch: S26 · Summer 2026
Status, per YC: Active
Category: AI
Team size: 2
Location: San Francisco, CA, USA
Founded: 2025
Checked: 31m ago

YC tags: Artificial Intelligence, Hardware, Robotics, B2B

OS3 in S26: 231 companies, 88% AI

OS3: questions

Which YC batch was OS3 in?

OS3 was in Y Combinator's Summer 2026 batch (S26).

Is OS3 still active?

Y Combinator lists OS3 as active.

Who founded OS3?

OS3's founders, as listed on its YC page: Rishabh Chanana (Founder), Chris Hailey (Founder).

Where is OS3 based?

OS3 lists San Francisco, CA, USA as its location on YC's directory.

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.