Upgrade over the K2
Kepler presents the K3 as a comprehensive upgrade of the K2 Bumblebee, with the same endurance and payload claims carried over. [1][2][3]
Price & availability
Prototype
Current dataset status: Prototype.
Product overview
K3 Bumblebee (K3大黄蜂) is Kepler's industrial humanoid and the successor to the K2 Bumblebee. Kepler launched it at the World Artificial Intelligence Conference (WAIC) in Shanghai in July 2026, alongside the wheeled K3W. The company presents it as a comprehensive upgrade over the K2 that keeps the same endurance and payload claims and adds a waist degree of freedom.
Kepler says the K3 charges for one hour and works for eight, and that it can lift 30 kg with both arms. At the show it was demonstrated in a training zone that copies factory production lines, where K3-series robots performed flexible two-robot collaborative work. Kepler's order coverage from the same period lists automotive manufacturing, precision machining and smart logistics among six core scenarios, but that figure is company-wide and not specific to this model.
The sources reviewed give no height, weight, total degrees of freedom, hand design or price for the K3 Bumblebee. The only compute and sensor details are series-level statements for the Bumblebee line. They also do not state its leg configuration or whether it is in volume production. The status is recorded as prototype: units were demonstrated, but no customer deployments for the K3 are documented.
Capabilities
Kepler presents the K3 as a comprehensive upgrade of the K2 Bumblebee, with the same endurance and payload claims carried over. [1][2][3]
Kepler quotes one hour of charging for eight hours of work and 30 kg of lifting with both arms. [1][2][3]
A newly added waist joint is meant to widen the working area. The company did not give a total degree-of-freedom count. [1][3]
At WAIC 2026 the K3 series ran a two-robot collaborative task in a training zone modelled on real factory lines. [2]
Hardware profile
Quick answers
No general order page is verified. Kepler K3 Bumblebee is currently classified as prototype. [3]
The stated runtime is 8 hours per charge; Operating time per one-hour charge; Kepler's Aug 2026 release says the K3 keeps the 'charge 1 hour, work 8 hours' endurance. [1][2][3]
The listed payload is 30 kg; Both arms combined, per Kepler's 2026 figures; per-arm figure not stated for K3. [1][2][3]
Kepler K3 Bumblebee is made by Kepler Robotics, based in China. [3]
Kepler K2 is its predecessor. [3]
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Evaluation footprint
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Related
Evidence