Introducing CoPAEI

Today we're introducing CoPAEI, our full-stack humanoid robot platform, designed and made in USA, and opening early access through our Founding Cohort Program. Our goal is a capable humanoid, designed from first principles to be physics-aware, affordable to build, simple to repair, and open to improve. We're building it for:

• Physics awareness: hardware designed from first principles to capture force, load, and contact.
• Modularity: self-contained modules that can be swapped, repaired, or upgraded independently.
• Affordable manufacturing: a simplified build using accessible processes, including 3D printing for many structural parts.
• Openness: a platform we plan to open-source in major parts, so others can build on it.
• American manufacturing: design, integration, and manufacturing know-how kept in the United States.

Where it started

The robot in the photo is CoPAEI 0.1: a 180 cm humanoid, fully 3D-printed, with no metal in its structure. We built it to find out how far accessible manufacturing could take a full-scale humanoid.

It taught us more than we expected, and those lessons shaped everything that came next.

Designed from first principles to be physics-aware

We didn't start from an existing robot. We started from the physics of the work a humanoid does: pushing, lifting, carrying, and making contact with a world that rarely behaves exactly as planned.

So every design decision in CoPAEI begins with one question: what does the hardware need to sense about force, load, and contact? The architecture is built so those physical interactions become information instead of disappearing. That feedback is what a robot needs to handle real environments and work alongside the people in them.

Designed for modularity

CoPAEI is built as a set of self-contained modules: head, torso, arms, hips, grippers, legs, and feet. Each can be removed, repaired, or upgraded on its own, so one failure doesn't take down the whole machine, and a better module drops in without rebuilding the robot.

The architecture is also designed to work with a range of off-the-shelf actuators, so teams can build with the hardware they can source.

Designed for affordable manufacturing

Humanoids have mostly been built as expensive, hand-finished prototypes. CoPAEI takes the opposite approach.

We simplified the manufacturing process and designed many structural parts for 3D printing, so they can be produced with accessible tools instead of specialized machining.

We believe a full-scale humanoid can be built without a nine-figure budget or a closed supply chain. CoPAEI is how we intend to prove it.

Designed to be open

CoPAEI isn't meant to be a black box. We plan to open-source major parts of the design, so researchers, universities, manufacturers, and independent builders can start from a working humanoid instead of from zero.

They'll be able to produce parts locally, adapt the robot to their own needs, and experiment with different actuators, sensors, control systems, and mechanical configurations.

Designed and built in America

The United States shouldn't only develop the intelligence behind the next generation of robots. It should build the machines too.

For us, sovereignty doesn't mean every component comes from one place. It means the design, integration, and manufacturing know-how stay accessible and under control here, so the robot can be built, repaired, and improved without depending on any single supplier.

If humanoids are going to become widespread, more people need to be able to build them. That's how ecosystems form, how costs fall, and how a country builds lasting technological independence.

Join the Founding Cohort

CoPAEI is meant to be built on, so we're not building it alone. Starting today, we're opening a Founding Cohort, limited to 10 institutions that want to run novel experiments on humanoid hardware they can open up, modify, and make their own.

Founding Cohort Members get early access to the CoPAEI platform. Each institution receives two CoPAEI robots.

CoPAEI 0.1 was only the beginning. What came next is a story we'll tell soon, but if you want to build with us from the start, now is the time.