Tien Kung (Tiangong)

Tien Kung, also written as Tiangong, is a family of full-size humanoid robot platforms developed by the Beijing Humanoid Robot Innovation Center (X-Humanoid).

Unlike humanoid robots designed primarily as finished commercial products, Tien Kung was originally introduced as a general-purpose humanoid “mother platform”—a physical foundation intended to support robotics research, software development, hardware expansion, and the broader development of embodied intelligence.

The first Tien Kung platform was unveiled in April 2024 with an emphasis on openness, modularity, and high-performance motion. The original platform stood approximately 1.63 meters tall and weighed about 43 kg, while incorporating multiple visual sensors, high-performance onboard computing, an IMU, 3D vision, and six-axis force sensing. X-Humanoid also introduced a proprietary learning-based approach to humanoid motion control and demonstrated electric-powered humanoid running.[Source]

The platform has since evolved significantly.

The latest generation, Tien Kung 3.0, represents a shift from a relatively open research platform toward a more complete full-size humanoid system designed for embodied AI, dynamic whole-body control, autonomous operation, and real-world applications. X-Humanoid describes it as a full-size humanoid platform focused on being more autonomous, more open, and easier to use.[Source]

The significance of Tien Kung is closely tied to the idea of an open humanoid platform.

Humanoid robotics is an unusually difficult engineering problem because a single machine needs to combine:

Mechanical engineering
Actuators
Balance and locomotion
Perception
Computing
Control
Manipulation
Artificial intelligence
Human-robot interaction

Building all of these components independently is expensive and time-consuming.

A platform such as Tien Kung attempts to provide the physical foundation so that developers can concentrate more on the problems above the hardware layer.

This is particularly relevant as robotics moves from traditional automation toward embodied AI—systems that can perceive the physical world, make decisions, and execute actions through a physical body.

Tien Kung 3.0 uses a full-size anthropomorphic configuration designed to approximate the movement range and proportions of the human body.

The robot uses a combination of high-strength and lightweight materials, including aluminum alloy, magnesium alloy, and carbon fiber components.

X-Humanoid says topology optimization and finite-element analysis are used to remove unnecessary material while maintaining structural strength.[Source]

This matters because humanoid robots face a difficult trade-off.

A heavier robot can provide structural strength and greater actuator capability, but every additional kilogram increases the energy required for walking, acceleration, balance recovery, and dynamic movement.

Reducing mass therefore has a direct impact on:

• Energy consumption
• Acceleration
• Balance
• Running performance
• Dynamic motion
• Actuator requirements

Tien Kung 3.0's mechanical architecture is designed around this balance between strength and mobility.

One of the defining characteristics of Tien Kung 3.0 is its 43-degree-of-freedom configuration.

More degrees of freedom allow the robot to coordinate its body in more complex ways.

This becomes particularly important for whole-body tasks.

A humanoid does not simply move an arm independently.

A real task may require simultaneous coordination of:

• Feet
• Knees
• Hips
• Waist
• Shoulders
• Elbows
• Wrists
• Hands

The more independently controllable joints the robot has, the greater its potential movement envelope.

Tien Kung 3.0's 43-DoF architecture is therefore closely connected to its goal of performing more human-like whole-body movements.

Dynamic movement is one of the areas where Tien Kung has attracted significant attention.

X-Humanoid reports that Tien Kung 3.0 can perform high-dynamic movements including box jumps, side flips, and Thomas-style rotational movements, while its maximum joint torque can reach approximately 400 N·m.[Source]

The robot is also designed to tolerate falls and recover autonomously.

This is important because falling is one of the fundamental challenges in bipedal robotics.

A humanoid that loses balance is not simply experiencing a software error. A fall can damage mechanical components, sensors, joints, or external equipment.

Designing the body to tolerate impacts and recover from falls therefore becomes part of the robot's overall reliability strategy.

One of the major technological developments associated with Tien Kung 3.0 is what X-Humanoid describes as touch-interactive whole-body high-dynamic control.

The idea is significant.

Traditional robot control often assumes that the robot knows where its body is and can execute a planned movement without substantial physical interference.

Real environments are different.

Robots interact with:

• Objects
• Walls
• Floors
• Tools
• People
• Other machines

Physical contact can change the robot's state.

A humanoid therefore needs to respond to forces and contact rather than simply follow a predetermined trajectory.

Tien Kung 3.0 is designed around this more interactive model of whole-body control.

Force sensing is particularly important for physical interaction.

The earlier Tien Kung platform already incorporated six-axis force sensors, while the newer generation expands the platform's support for physical interaction and external devices.[Source]

Force information can help a robot estimate how strongly it is interacting with an object or surface.

Potential applications include:

• Manipulation
• Contact-rich tasks
• Tool use
• Balance control
• Object handling
• Physical human-robot interaction

This is one of the areas where humanoid robots move beyond simple locomotion and toward useful physical work.

Tien Kung 3.0 is designed around a multi-sensor perception architecture.

X-Humanoid describes a 360-degree surround-view perception system combining a Mid-360 LiDAR with optional multiple cameras.

The system synchronizes point-cloud and multi-view visual information to create a broader representation of the robot's environment.[Source]

This is important for a humanoid because its environment can contain objects at many different heights and positions.

The robot may need to detect:

• People
• Obstacles
• Floor surfaces
• Objects on shelves
• Tools
• Workstations
• Moving objects

A single forward-facing camera is insufficient for many of these situations.

Combining LiDAR and multiple cameras gives the robot a more complete spatial model.

The perception system is also intended to support autonomous navigation.

X-Humanoid says the 360-degree sensing architecture can support:

• Dynamic obstacle avoidance
• Global environment modeling
• Autonomous navigation
• Mobile manipulation

This creates a fundamental shift from remote-controlled robotics toward autonomous operation.

Instead of receiving every movement command from an operator, the robot can potentially determine how to move through an environment while accounting for obstacles and task requirements.

Openness is one of the defining characteristics of the Tien Kung platform.

The original platform was explicitly introduced as an open and expandable humanoid “mother platform,” with open communication interfaces and support for flexible hardware and software expansion.[Source]

Tien Kung 3.0 continues this approach.

The robot provides a range of physical interfaces, including:

• CAN
• RS485
• RJ45 Ethernet
• USB 3.2
• USB Type-C
• DisplayPort
• GPS/RTK
• GPIO
• 48 V power output

The wrist area also includes communication interfaces intended for additional devices such as dexterous hands and six-axis force sensors.[Source]

This makes Tien Kung more interesting to developers than a closed humanoid platform.

External hardware can potentially be integrated into the robot rather than requiring a completely separate robotic system.

The physical robot is only one part of X-Humanoid's broader technology stack.

The company is also developing HuiSi KaiWu, an embodied-intelligence platform designed to connect perception, decision-making, and physical action.

This reflects a broader industry transition.

Earlier robotics systems often followed a relatively simple structure:

Sense  →  Plan  →  Execute

Modern embodied-AI systems increasingly attempt to combine:

Perception  →  Reasoning  →  Prediction
Planning  →  Action  →  Feedback

The robot becomes the physical interface through which the AI interacts with the world.

This is why Tien Kung should not be evaluated purely as a mechanical platform.

Its long-term significance depends heavily on how effectively its hardware can work with increasingly capable embodied-AI models.

One of the strongest arguments for humanoid robots is not that humans are necessarily the most efficient biological design.

It is that the world is already designed around the human body.

Buildings have:

• Human-sized doors
• Stairs
• Shelves
• Workbenches
• Tools
• Vehicles
• Industrial workstations

A humanoid robot can potentially interact with these environments without requiring every facility to be redesigned around the robot.

Tien Kung's full-size anthropomorphic design therefore has a practical purpose beyond appearance.

The most interesting part of Tien Kung may ultimately be neither its running speed nor its mechanical specifications.

It is the idea of combining an open humanoid body with increasingly capable AI.

A useful embodied-AI system needs three layers:

Tien Kung represents an attempt to develop all three layers as part of a broader ecosystem.

This is particularly important because the future of humanoid robotics will not be determined solely by who builds the fastest robot.

The more important question is:

Which platforms can learn useful behaviors, generalize them across environments, and reliably perform physical work?

That is the problem Tien Kung is increasingly designed to address.