OpenAI's Astra drives a $150 3D-printed SO-ARM101 robot arm to paint the Golden Gate Bridge
RemiCadene · x · 2026-09-09
Developer @cdngdev gave OpenAI's Astra a SO-ARM101 robot arm, a paintbrush, and a camera, then asked it to paint the Golden Gate Bridge in real life. Astra figured out arm control on its own and visibly improved across attempts, with an impressive timelapse as proof.
- SO-ARM101 is an open-source 3D-printed robot arm costing roughly $150.
- Paired with the LeRobot library, it enables at-home data collection and model training.
A striking low-cost demonstration of embodied AI: frontier models learning physical skills on hobbyist hardware.
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