OS3

YC company profile

Affordable, intelligent humanoid robots built to deploy at scale

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: Summer 2026
• Founded: 2025
• Team size: 2
• Location: San Francisco
• Country: US
• Status: Active
• Industry: Industrials
• Stage: Early
• Tags: Hardware, Robotics, B2B, AI
• YC partner: Gustaf Alstromer

Founders

Rishabh Chanana — Founder

Built a computer at 10. First line of code at 12. Built & programmed a robot at 17.

Grad School at UCSD, Robotics & AI. NLP research with Harvard and Georgia Tech. Trained LLMs at ServiceNow & built patented ML systems.

Now soldering and training robots at OS3.

LinkedIn · X

Chris Hailey — Founder

Co-Founder at OS3. Ex-Coinbase software engineer on the asset addition team, generated over $19 billion of trading volume. Turned a YC hackathon winning project into a $10K MRR idea. Undergrad CS from USC with Presidential Merit scholarship. Serial marathon runner, most recently completed the 2025 Oakland Marathon in 3 hours 12 minutes.

LinkedIn · X

Source: Y Combinator · Retrieved 2026-11-02. Company information is self-reported on YC.