The EngineAI T800 is a full-size high-dynamic general-purpose humanoid robot standing 1.73 m tall and weighing 75 to 85 kg depending on edition. It features 25 to 29 degrees of freedom with full-stack in-house developed joints delivering up to 450 N·m torque. An active leg joint cooling system enables 4 to 5 hours of continuous operation from a ternary lithium or optional solid-state battery. The multi-modal perception system includes 360-degree LiDAR with millisecond-level environmental data processing and an Intel depth camera. Each optional dexterous hand has 7 DOF with 5 kg payload and integrated tactile sensing. Available in Basic and Open Source editions, the latter adding secondary development support. It performs martial arts movements and handles logistics, warehouse operations, hotel services, sales assistance, and human-robot collaboration in industrial and commercial settings.