Zeroth-01 Bot is a 3D-printed open-source humanoid robot platform for sim-to-real and reinforcement learning, built by the open-source community.

Product passport

Key facts are transcribed from official pages or public documentation. Access and pricing can change, so confirm them before acting.

Category: Humanoid Robots
Maturityi: Available
Deploymenti: Physical hardware
Purchase access: Public purchase / signup
Official source: Official website
Verifiedi: Not yet verified

Reality check

The useful boundary is what works repeatedly in a real environment—not what looks impressive in a demo.

Works well when

Research, teleoperation and embodied-AI data collection
Structured factory or reception pilots
Tasks where a human-shaped workspace matters

Verify before buying

Continuous runtime, fall recovery and battery workflow
SDK, low-level control access and spare-part lead time
Who owns safety and exception handling on site

Not a magic solution

A general replacement for a human across unpredictable tasks
A maintenance-free appliance
A guaranteed return based on a demo alone

About

Zeroth-01 Bot is a 3D-printed open-source humanoid robot platform developed by the open-source community under the zeroth-robotics GitHub organization. It is positioned as super hackable, affordable, and end-to-end, with fully open-source hardware, SDK, and simulation environments, and a bill of materials starting at $350. Core components include KOS-ZBot, which provides the robot operating system and hardware abstraction layer with servo, IMU, and actuator drivers plus a Python API, and K-Sim Gym ZBot, which provides GPU-accelerated reinforcement learning training and sim-to-real deployment of policies. The project is in public beta with basic locomotion, vision, and speech, and documentation is available at docs.kscale.dev.