Skip to content
buildrobots.io
LearnStart

HumanoidBooster Robotics2025CN

Booster K1

95 cm kid-size humanoid launched in October 2025 as an entry-level research, education and RoboCup platform.

activeBuyL1 Compilednot buildable

Difficulty index

9.9/13
9.9
Index breakdown
Classhumanoid+5
Cost$4,999 list+1.7
DOF22 DOF+2.2
Partsunknown · midpoint+1
How the index works

Top of the ladder. This robot lives on the humanoid domains.

Specimen photographs

5 items
  • Booster K1 studio render, three-quarter front view
    Studio render of the published MJCF, the model's zero pose. Geometry only; colours are the model's own materials.Rendered by Hyperspawn from BoosterRobotics/booster_assets (BSD-3-Clause) · Hyperspawn render · source
  • Booster K1 studio render, side view
    Side view of the same MJCF render, the model's zero pose.Rendered by Hyperspawn from BoosterRobotics/booster_assets (BSD-3-Clause) · Hyperspawn render · source
  • 4 s turntable of the MJCF studio render.Rendered by Hyperspawn from BoosterRobotics/booster_assets (BSD-3-Clause) · Hyperspawn render · source
  • Booster: Introducing the all-new K1 robot. The future of robotics is here. Booster Robotics · official video, embedded · source
  • The future is open. Meet Booster K1: The humanoid robot platform #BoosterK1 #EmbodiedAI #RoboticsBooster Robotics · official video, embedded · source

Spec card

8/13 known
Degrees of freedom
22
Height
95 cm
Mass
19.5 kg
Runtime
40 min
Price
$4,999 · Starting price US$4,999 at Oct 21, 2025 launch (Humanoids Daily); higher-compute tiers cost more.
Actuators
Dual-encoder actuators
Compute
NVIDIA Jetson Orin NX 8GB (117 TOPS) base; up to 200 TOPS tier
Sensors
RGB-D camera, 9-axis IMU, microphone array

Not in the registry: payload, speed, battery, bom total, part count. Left blank rather than guessed.

What you learn building it

  • +Whole-body control
  • +Dozens of actuators on one bus
  • +Balance and fall handling
  • +Safe bring-up of a full-size machine
  • +Testing in simulation (URDF/MJCF) before touching hardware

Openness

30/100
  • not publicCAD
  • not publicBOM
  • not publicFirmware
  • publicSim model
  • publicSoftware
  • not publicPolicies

Score 30/100 computed from what is public: CAD 25, BOM 20, sim 20, firmware 15, software 10, policies 10. Hardware license: Proprietary. Software license: Apache-2.0 AND BSD-3-Clause.

Repos & models

URDF ↗
Site

Build it

Closed hardware. Buy link only.

humanoidrobot.build/booster/k1 · Closed hardware. Buy link only.

Simulate

Load it in the browser simulator and train a policy before building.

Open on humanoidrobots.training ↗

Next rung

None. This is the top. Find people building it on humanoidrobots.team.

This is the top of the ladder.

Notebooster_assets also contains a T2 model. Licenses: booster_robotics_sdk and robocup_demo Apache-2.0 (the SDK LICENSE is Apache-2.0 text, which GitHub reports as NOASSERTION), booster_assets BSD-3-Clause.

Sources

  1. [1]Humanoids Daily K1 launchchecked 2026-09-24
  2. [2]booster_assets repochecked 2026-09-24