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HumanoidLeju Robotics2023CN

Leju Kuavo

General-purpose humanoid series running KaihongOS (HarmonyOS-based) with an open-source ROS control stack; Kuavo 5 (Oct 2025) adds convertible biped and wheeled limbs.

activeBuyL1 Compilednot buildable

Difficulty index

9.0/13
9.0
Index breakdown
Classhumanoid+5
Costunknown · midpoint+1.5
DOFunknown · midpoint+1.5
Partsunknown · midpoint+1
How the index works

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

Specimen photographs

none yet

No photos, renders or videos of Leju Kuavo are in the registry yet. Media is added with a credit and an exact license, never hotlinked from press.

Spec card

2/13 known
Speed
1.28 m/s
Actuators
Joints up to 360 N·m

Not in the registry: degrees of freedom, height, mass, payload, runtime, battery, price, bom total, part count, compute, sensors. 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.

Repos & models

URDF ↗
Site

Build it

Closed hardware. Buy link only.

humanoidrobot.build/leju/kuavo · 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.

NoteLeju has no official spec sheet; the 4.6 km/h walking speed is press-reported, and reported mass ranges from ~45 kg to ~63.5 kg by generation. The company delivered its 100th full-size humanoid in 2025. The year 2023 is not confirmed by a fetched source. kuavo-ros-opensource is actively pushed (Sept 2026) but has no license file, so its code is all rights reserved and sw is left undeclared.

Sources

  1. [1]Wikipedia: Leju Robotchecked 2026-09-24
  2. [2]kuavo-ros-opensource repochecked 2026-09-24
  3. [3]Humanoid.guide Kuavo-5checked 2026-09-24