Kepler K2 Bumblebee vs Spirit AI Moz1

Kepler K2 Bumblebee is a commercial industrial humanoid from Shanghai. It is 175 cm, 75 kg, 52 DoF, with 11-DoF hands, a hybrid roller-screw/rotary actuator design, 100 TOPS compute, and a claimed 30 kg dual-arm payload and 8-hour runtime on a one-hour charge. Kepler lists a $30,000 base price or RMB 248,000 and announced mass production and shipments in September 2025. The most concrete positive evidence is a company-described gait video showing the robot walking over bricks, plastic and grass and remaining stable under pushes. Commercial proof is limited: confirmed orders of over 47 million yuan are reported, and an official video title suggests a Zhaofeng Motor on-the-job log, but 2025 revenue was only 4.34 million yuan with heavy losses and the company was acquired at a lower valuation. Autonomy, endurance and manipulation claims are mostly company statements without independent verification; many demo videos are title-only with no teleoperation disclosure

Spirit AI Moz1 is a Chinese wheeled humanoid with 26 DoF, dual 7-DoF force-controlled arms, and an omnidirectional base, running the Spirit VLA model. Evidence includes RoboBoom directory specs (160 cm, 70 kg, 3 h runtime, $150,000 price) and company-related demos of long-horizon room tidying from a single instruction, including a single-take video claimed to have zero teleoperation. Gasgoo reports Moz robots in JD.com retail settings for customer interaction. No official product page, official price, battery capacity, or independent endurance/autonomy verification was found; video titles for several demos are not transcribed. The CATL battery line deployment is attributed to Xiaomo, not Moz1, and must not be credited here