Four funding rounds in quick succession, capped by a Series C that closed on June 29, 2026, have pushed Chinese robotics startup X Square Robot to a $2.8 billion valuation. That’s an eye-watering figure for a company whose flagship machine isn’t even available to buy yet — but the pitch here isn’t a single gadget. It’s a full stack.
X Square Robot isn’t selling humanoids off a shelf. Its system knits together foundation models, robotics hardware, a data pipeline, and real-world deployments — the kind of vertical integration investors have been chasing ever since embodied AI became the industry’s favorite buzzword. The company’s public face is the Quanta X2, a wheeled humanoid that sits at the top of its Quanta series.
On paper, the Quanta X2 is a serious piece of engineering. It stands 172 cm tall, weighs 95 kg, and packs 62 degrees of freedom across its body. Rather than walking on two legs, it rolls on a wheeled base with a 3.6 km/h top speed — a pragmatic choice that trades acrobatics for stability and battery life in warehouse and factory settings.
Where things get interesting is at the ends of its arms. Each hand carries 20 degrees of freedom with tactile sensing, giving the robot the fine motor dexterity needed to grasp, sort, and manipulate awkward objects — the tasks that trip up cruder grippers. Each arm can haul a 6 kg payload, so the X2 can actually do useful lifting rather than just posing for demo videos.
Driving all of it is WALL-B, X Square Robot’s own foundation model, introduced in April 2026. This is the brain that turns a pile of joints and sensors into something that can reason about physical tasks — and it’s the reason the company keeps stressing that it’s building a platform, not a product.
Speaking of products: don’t expect to configure a Quanta X2 online anytime soon. X Square Robot has said it doesn’t currently offer anything for mass-market delivery, with pricing determined case-by-case depending on the deployment. One research firm pegged the X2 at roughly $80,000, but that’s an outside estimate, not a sticker price. This is B2B robotics, sold by the use case, not the unit.
The bigger story is momentum. Stringing together four consecutive rounds in a short window — and landing at a nearly $2.8 billion valuation before shipping a commercial fleet — puts X Square Robot squarely among the most heavily backed players in China’s humanoid race. Whether WALL-B and the Quanta hardware can justify the numbers is the multi-billion-dollar question. For now, the capital is betting yes.
