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ManufacturerDataa Robotics Co., Ltd. / CloudMindsRobot model · No. 8

XR4 (Xiaozi)

Humanoid Robots · Education & Training

In developmentChina

Key factRobotGPT multimodal robot foundation model · 10 kg stated by Dataa for the 2024 configuration

Model details

Model specifications

AI systemRobotGPT multimodal robot foundation model

Arm payload10 kg stated by Dataa for the 2024 configuration

ArmsDual articulated arms

AvailabilityLimited / small-batch commercial availability

Balanced standingYes

Battery capacityNot publicly available

Behavior generationYes

Bipedal gait generationYes

Charging timeNot publicly available

Cloud architectureDataa cloud brain / HARIX OS

Cognition and decision-makingYes

Current/latest official height168 cm

Delicate graspingDemonstrated/reported with objects such as eggs and thin cards

Digital-twin trainingYes

Drive technologyHigh-torque-density motors

Dual-hand coordinated manipulationYes

Exact camera configurationNot publicly available

Hand DOFConflicting public specifications — Dataa material has referred to a 7-DOF dexterous hand, while a 2024 company-staff description reported a 12-DOF hand. I would not enter one as definitive without a current datasheet.

HandsDexterous robotic hands

Imitation / teaching-learningYes

IP ratingNot publicly available

Joint architectureParallel / serial-parallel hybrid smart compliant actuator design

Large-scale parallel fleet trainingDescribed by Dataa as part of the XR4 development approach

Later development architectureDual-parallel structure with screw-drive elements and metal 3D-printed lightweight components

LiDARNot publicly available for XR4 specifically

LocomotionBipedal

Maximum slopeNot publicly available

Multimodal perceptionYes

NationalityChinese

Operating runtimeNot publicly available

Original 2023 specification height165 cm — indicating a later hardware revision or specification update.

Robot typeFull-size bipedal humanoid

Single-leg peak joint torqueUp to 600 N·m

Smart compliant joints/actuators60+ in the primary manufacturer specification; some 2024 exhibition material refers to 50+, likely reflecting a configuration/counting difference.

Stair-climbing specificationNot publicly available

Structural materialExtensive use of lightweight high-strength carbon-fiber composite

TrainingDeep reinforcement learning

Walking speed3.5 km/h

Weight65 kg in Dataa’s original official XR4 specification

About the XR4 (Xiaozi)

Full-size bipedal humanoid combining Dataa’s RobotGPT/cloud brain with high-torque compliant actuators and dexterous manipulation for research, manufacturing, logistics and future service applications.

Typical applications: Education & Training, Research & Development.

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