South Korea-based WIRobotics has released a simulation model of its ALLEX humanoid robot as the first stage of a broader plan to make technology from its humanoid development program available to researchers and robotics developers. The model is intended to support robot control, machine learning and synthetic data generation without requiring access to the physical ALLEX hardware.
WIRobotics said the simulation model was developed to reduce differences between simulated and physical robot behavior. It reproduces characteristics of the ALLEX platform including backdrivability, which allows joints to respond to external forces, and force transparency. It is available in MJCF format for MuJoCo, USD format for Nvidia Isaac Sim and URDF format for the Robot Operating System.
The company has also published validation results comparing the movements of the physical robot with those generated in the simulation environment. A technical demonstration video showing the comparison and validation process is available through its YouTube channel.
“In humanoid robot development, simulation models are a core infrastructure that serves as the foundation for learning, validation and synthetic data generation,” co-chief executive Yong-Jae Kim said. He added that simulations reflecting the characteristics of physical robots could allow developers to test algorithms more quickly before deploying them on hardware.
WIRobotics plans to release additional technologies from its humanoid robotics program and make the ALLEX research platform available later in 2026. The initiative is intended to enable external developers to begin working with the platform before the physical robot becomes widely available.
Founded in 2021 by former Samsung Electronics robotics engineers, WIRobotics develops wearable and humanoid robots. The company introduced the ALLEX humanoid platform in 2025 and completed a Series B funding round of approximately 95 billion won, or about $62 million, in 2026.
