RoboParty unveiled RP1, also called ROBOTO 01, at IROS 2026 on September 28, 2026, the robot's first public appearance, the company said. RoboParty describes RP1 as a full-stack open-source bipedal humanoid robot, designed for researchers, educators, robotics developers and embodied AI teams.
At its IROS booth, the company ran a "Kick Me" demonstration in which visitors pushed or kicked the robot. RoboParty said RP1 adjusted its posture and recovered its balance in response to each disturbance, and that the repeated high-intensity interactions also tested the robot's body and system-level robustness. The open format let visitors watch dynamic stability and control performance under external disturbances rather than predefined motions only, the company said.
RP1's motion and disturbance-recovery behaviour at the show was supported by PartyOS, RoboParty's open development foundation for humanoid robotics, which integrates the UFO framework — described in the release as a general unsupervised reinforcement learning framework for humanoid control. According to the company, UFO trains low-level motion policies for behaviours including skill transitions, disturbance recovery and fall recovery, without relying entirely on predefined motion trajectories.
On hardware, RP1 uses in-house Romomo actuator modules and delivers peak joint torque of up to 160 N•m, the company said. RoboParty said full-stack open source means more than mechanical files or a single software module: beyond the robot body and core actuator modules, it plans to progressively open its motion-control systems, simulation environments, SDKs, training tools and the PartyOS foundation. Founder Yi Huang said humanoid robots should not be closed systems that only a small number of teams can build while others can only watch, and that RP1 is intended as an open foundation developers can access, modify, train and keep improving.
RoboParty said it plans to announce further details of RP1's open-source roadmap in October 2026, with broader software and hardware releases and a mass-production programme to follow later in the fourth quarter. The company said its community has more than 5,000 developers, and that RPO, its first open-source humanoid project, released in January 2026, has received more than 2,500 stars on GitHub.
