Reference
Forerunner K2 Kepler Robotics
175 cm
Shipping 8 of 9 specs
Forerunner K2
Shipping 2025
Kepler's hybrid-architecture 'Bumblebee' industrial humanoid at ¥248,000 (~$34,000), in mass production with ~8 h runtime.
Overview
Shanghai-based Kepler moved the Forerunner K2 'Bumblebee' into mass production in September 2025, calling it the world's first commercially available hybrid-architecture humanoid at ¥248,000 (~$34,000) per unit. The 1.75 m, 75 kg robot combines planetary roller-screw linear and rotary actuators for a straight-knee gait, up to 81.3% energy efficiency and industrial durability, with 52 degrees of freedom and tactile hands lifting 15 kg per arm. A 2.33 kWh battery delivers around 8 hours per charge, and a layered VLA+ model handles sorting, assembly and guided tours. Kepler reports framework agreements covering several thousand units across logistics, manufacturing, R&D and exhibitions.
Use cases
Warehouse logistics Manufacturing Exhibitions & tours
Capability evidence
- Gitex Global 2024 launchKepler debuted the Forerunner K2 at Gitex Global 2024 in Dubai, with customer-site trials on materials handling, stamping material collection, quality inspection and patrol/inspection tasks. PR Newswire (Kepler) ↗ · 2024-10
- ICRA 2025 showcaseK2 'Bumblebee' greeted attendees, navigated the venue autonomously and interacted with other robots at ICRA 2025 in Atlanta, with industrial trials underway. The Robot Report ↗ · 2025-06
- 8-hour WAIC livestreamK2 'Bumblebee' completed a continuous 8-hour livestream performing industrial tasks at WAIC 2025 in Shanghai, demonstrating full-shift endurance for factory deployment. PR Newswire (Kepler) ↗ · 2025-08
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