Unitree Robotics has unveiled a production-ready manned mecha, a robot that can be ridden by a person. The robot, known as the GD01, is reported to have the ability to transform from two legs to four and is priced starting at around $574,000 or 3.9 million yuan. Details of the robot's capabilities and potential uses are not fully clear, but it has drawn comparisons to science fiction and has been described as a significant technological development.