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Kepler Announces Mass Production of ‘Bumblebee’ Humanoid, Embracing Tesla Similarities
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- Humanoids daily
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SHANGHAI – Kepler Robotics announced yesterday that it has officially commenced mass production of its K2 "Bumblebee" humanoid robot. The announcement, made across social media platforms, was accompanied by a video (watch it at the end of the article!) showcasing the robot's development and testing phases, signaling a significant step toward commercial availability.
In an unusually direct acknowledgment of its design inspiration, Kepler stated the K2 "Bumblebee" is "powered by Tesla’s hybrid architecture." The company has leaned into the comparison, even adopting the "Bumblebee" moniker—a name used for an early prototype of Tesla's own Optimus humanoid robot.
An Unabashed Optimus Clone
Kepler, a notable player in China's burgeoning robotics scene, is not a newcomer. The company has been steadily developing its "Forerunner" series, debuting the K2 model in late 2024 and demonstrating it at industry events like ICRA and WAIC throughout 2025. The K2 stands 175 cm tall, weighs 75 kg, and according to previous company releases, features a payload capacity of 15 kg per arm with an 8-hour operational time.
The decision to explicitly align its product with Tesla's design is a bold strategic move. It appears aimed at accelerating development and tapping into the market enthusiasm generated by Optimus. Kepler’s social media posts claim that "thousands of pre-orders" are already entering the delivery phase, suggesting the strategy may be finding early traction.
Copying the Wrong Homework?
However, the approach has drawn scrutiny from industry observers. Robotics expert Scott Walter noted the robot’s deliberate similarities to Tesla's machine, particularly in its movement. "This is unabashedly an Optimus clone," Walter commented on X, pointing out that the K2, like early Optimus models, exhibits a relatively slow walking speed.
Observation Chinese robot videos show-off bipedalism, especially speed and gymnastics. Not this one This is unabashedly an Optimus clone Tesla Optimus also struggles with walking speed Two separate teams. Same result All you need to know about the Optimus Gen 2 architecture
Kepler K2 Bumblebee: An Affordable Optimus Alternative Kepler's K2 humanoid robot is beginning mass production and delivery on thousands of pre-orders, signaling a major step toward the commercialization of humanoid robotics. The robot features a hybrid architecture similar to
The core of the critique lies in the fast-paced evolution of humanoid robot design. Walter questioned the wisdom of cloning an existing model when its originator is already iterating toward a new generation. "What happens when you copy the wrong student's homework," he remarked, alluding to the possibility that Kepler may be manufacturing a robot based on an architecture that Tesla is in the process of superseding with its forthcoming Gen 3 design.
A Race to Market
Kepler's strategy appears to be a calculated gamble. By adopting a proven, if potentially dated, architecture, the company can bypass some of the foundational R&D hurdles and move directly to manufacturing and commercialization. This could give Kepler a significant first-mover advantage in making a general-purpose humanoid robot widely available for purchase, with a previously announced base price of around $30,000.
The central question is whether this speed to market will outweigh the risks of being technologically leapfrogged. As Kepler's production lines begin to roll, the industry will be watching closely to see if customers embrace the "Bumblebee" as a viable commercial platform, or if the shadow of Tesla's next-generation Optimus will reveal the limitations of Kepler's approach.