Hugging Face's Pollen Robotics just opened pre-orders for Microduck, a $399 biped.
25cm, under 800g, 15 motors, a camera, a small LiDAR, two IMUs, and an articulated beak that picks things up.
Ships with 7 pre-trained behaviors including walking, kicking, and roller skating.
Open on GitHub under Apache-2.0: the SDK, the simulator, and the RL training pipeline. So you can teach it new tricks.
The Humanoid Hub (@TheHumanoidHub) 
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