UC Berkeley releases open-source humanoid robot for under $5,000

lukas_m_ziegler · x · 2026-08-20

UC Berkeley has released Berkeley Humanoid Lite, an open-source humanoid robot costing under $5,000. All components are either 3D-printable or available on Amazon, eliminating the need for specialized manufacturing and breaking the high-cost barrier.

The design uses cycloidal gears optimal for 3D-printed actuators, with durability tests validating the plastic parts. The robot demonstrates capabilities like playing with Rubik's cubes, writing, and bipedal walking, utilizing zero-shot sim-to-real transfer via reinforcement learning. Hardware designs and code are fully open-sourced.

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