EngineAI turned its booth at the 2026 World Robot Conference in Beijing into a black MMA cage and sent two 5-foot-8 T800 humanoids inside to fight before a crowd filming on their phones.
The white T800 landed the winning kick, then celebrated on its own by pacing the cage and punching the air. Because both robots use identical hardware, the fight was really a contest between their software and AI systems. No physical modifications were allowed: each robot stood roughly 173 centimeters tall, weighed between 75 and 85 kilograms, and had 29 joints capable of producing enough torque to knock down a grown man.
It was a sequel to the fight that first made EngineAI famous. On July 16 in Shenzhen, two T800s competed in a five-round bout at the launch of a professional humanoid combat league. One robot had its head partially knocked off and left dangling by cables, but it kept throwing punches because its main control systems are housed in its torso. Elon Musk later reposted the clip with the caption, “Robot fights are fun.”
EngineAI, founded in late 2023 and valued at around $1.5 billion, says more than 60% of its research is focused on factory and household work. The cage is essentially a public stress test: beat the robots up, study what fails, then use that data to make them durable enough for real-world jobs. The company is even planning a grand final in Dubai, where the winner will receive a 10-kilogram solid-gold belt.
And honestly, what a great idea… for a video game. Watching humanoid machines kick each other’s heads off in real life is undeniably cool, but it is also just uncomfortable enough to make me think we’re super doomed.
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