Real trained RL policies for the Microduck robot, running fully in the browser: MuJoCo compiled to WebAssembly steps the physics, onnxruntime-web runs the policy network at 50 Hz. No server, no backend. Two locomotion variants of the same robot are included: legs (walking, the default) and rollers (the wheeled skating variant). Press M (or hold D-pad up ~1 s on a gamepad) to switch; the roller model, meshes and policies are lazy-loaded on the first switch. | Mode | Checkpoint | What it does | |--------|-----------|--------------| | Run (legs) | BESTalphawalking.onnx | Velocity-tracking locomotion (arrows / WASD to steer) | | Sit | BESTalphasitstand.onnx | Sits down on its hull, stands back u...

Market Signal
Why It Has Market Pull
This is a real product from a funded robotics company now owned by Hugging Face, not a hobby demo: the browser sandbox runs the same trained policies shipping on a $399 physical robot going into production this year. Press coverage was immediate and broad, and the underlying code already has a large open-source following.
- 506 Hugging Face likes plus coverage from Engadget, The Register, and MarkTechPost within the same week of the robot's announcement.
- Built by Pollen Robotics, a robotics company founded in 2016 that raised roughly $2.8 million before being acquired by Hugging Face in 2025.
- Companion GitHub repositories already show 8,173 stars (core robot software) and 2,079 stars (reinforcement-learning environments).
- Runs the real trained neural-network policy fully client-side at 50Hz via WebAssembly physics and onnxruntime-web, no backend required.
- $399 physical robot is open for pre-order with deliveries targeted before Christmas 2026.
feedbacks
What People Are Saying
"Try Microduck routines in the simulator using the robot's API?"HF community comment
"Microduck Racer - Simulator modified for racing"HF community comment
"Tiny open-source robot duck can walk and learn from its mistakes"tech press coverage
"Hugging Face and Pollen Robotics open pre-orders for the $399 Microduck"tech press coverage
"Hugging Face offers $399 robot duck to help you quack the AI code"tech press coverage
"Hugging Face's Pollen Robotics Releases Small, Cute & Open-Source 'Microduck' Robot"tech press coverage




















