CtrlK
| Kepler Robotics | |
|---|---|
| Company information | |
| Full name | Shanghai Kepler Exploration Robot Co., Ltd. |
| Founded | 2023 |
| Founder | Hu Debo |
| Headquarters | Pudong, Shanghai, China |
| CEO | Hu Debo |
| Industry | Robotics, Humanoid robots |
| Products | Forerunner K1, Forerunner D1, Forerunner S1, K2 Bumblebee |
| Total funding | $14.4 million (as of 2025) |
| Website | gotokepler.com |
Kepler Robotics (formally Shanghai Kepler Exploration Robot Co., Ltd.) is a Chinese robotics company headquartered in the Pudong district of Shanghai that designs, develops, manufactures, and deploys general-purpose humanoid robots. Founded in 2023 by Hu Debo, the company focuses on building what it describes as "high-IQ blue-collar humanoid robots" intended for industrial applications including manufacturing, logistics, quality inspection, and emergency response.[1][2]
Kepler gained international attention at CES 2024, where its inaugural Forerunner K1 humanoid robot attracted visits from Microsoft CEO Satya Nadella, Tesla Optimus engineers, Google DeepMind researchers, and MIT faculty.[2] The company has since developed a full lineup of humanoid robots in its Forerunner series, including the Forerunner K1, Forerunner D1, Forerunner S1, and the Kepler K2 Bumblebee. In September 2025, Kepler announced the start of mass production of the K2 Bumblebee, which it described as the world's first commercially available hybrid-architecture humanoid robot, priced at RMB 248,000 (approximately $34,000 USD).[3]
As of 2025, Kepler had signed framework agreements covering several thousand units with total contract values in the hundreds of millions of yuan. The K2 Bumblebee has been deployed for real-world testing at the SAIC-GM automotive plant in Shanghai, performing quality inspections, parts handling, and assembly support.[3][4]
Shanghai Kepler Exploration Robot Co., Ltd. was established in 2023 as a high-tech enterprise dedicated to the research, development, production, and commercialization of general-purpose humanoid robots. The company is based at Torch Lotus Business Park on Naxian Road in the China (Shanghai) Pilot Free Trade Zone in Pudong.[5] The founding coincided with the Chinese government's decision to make humanoid robotics a national policy priority, positioning China to lead the world in the commercial development and deployment of humanoid robots.
Kepler was co-founded by Hu Debo (also rendered as Debo Hu or Huber Hu), who serves as CEO. Before establishing Kepler, Hu held positions at PowerVision Robot Corporation (a Chinese drone and robotics company), Huawei, and Hubert Tech Oy. He holds a master's degree in scientific computing from KTH Royal Institute of Technology in Sweden, earned between 2003 and 2005.[6][7] Hu has publicly articulated the company's mission as "dedicated to revolutionizing productivity with cutting-edge technology, hastening the arrival of a 'three-day work week.'"[2]
The Forerunner series emerged from three years of intensive research and four product iterations prior to the K1's public debut in November 2023.[2]
Kepler's first major international showcase took place at the Consumer Electronics Show (CES) 2024 in Las Vegas, held from January 9 to 12, 2024. The event featured over 1,100 Chinese companies among its 4,000-plus exhibitors, accounting for approximately 25% of all participants.[2] The Kepler exhibit drew high-profile visitors from across the technology industry, including Microsoft CEO Satya Nadella, the Vice President of Microsoft's Windows and Devices division, NVIDIA project management and ecosystem team leaders, engineers from Tesla's Optimus humanoid robot project, experts from Google DeepMind, researchers from MIT, representatives from Canadian humanoid robotics firm Sanctuary AI, and members of Australian television networks.[2]
The CES appearance established Kepler as a notable entrant in the global humanoid robotics industry and generated widespread media coverage.[8]
In October 2024, Kepler debuted the Forerunner K2 at GITEX GLOBAL 2024 in Dubai. Despite its sequential naming, the K2 actually represents Kepler's fifth-generation design, incorporating extensive hardware and software improvements over the K1. The K2 was developed in consultation with nearly 50 target customers across manufacturing, warehousing, logistics, inspection, and research sectors.[9]
In April 2025, the K2 Bumblebee began real-world industrial testing at the SAIC-GM automotive plant in Shanghai. SAIC-GM is a joint venture between SAIC Motor and General Motors that manufactures Buick, Chevrolet, and Cadillac vehicles for the Chinese and select international markets. During trials, the robots performed quality inspections, navigated complex factory environments, handled oversized and heavy components, autonomously loaded stamped parts, and manipulated mechanical fixtures.[4] This deployment represented one of the first real-world industrial testing programs for a commercially available humanoid robot in an active automobile manufacturing facility.
The K2 Bumblebee made its first major public appearance under its codename at the IEEE International Conference on Robotics and Automation (ICRA) 2025 in Atlanta, held from May 19 to 23, 2025. At the conference, the K2 greeted attendees with natural gestures, demonstrated autonomous mobility throughout the venue, and interacted with other robotic systems. Notable visitors to the Kepler booth included Jim Fan, Senior Research Scientist at NVIDIA, and Hesheng Wang, General Chair of IROS. CEO Hu Debo stated at the event that the sector's "next major focus" involves achieving a "complete commercial value loop," with industrial environments presenting the "clearest path to near-term deployment."[10]
On July 27, 2025, at the World Artificial Intelligence Conference (WAIC) in Shanghai, the K2 Bumblebee completed what Kepler described as "the industry's first 8-hour nonstop livestream by a bipedal humanoid robot." Operating from 9 AM to 5 PM, the robot demonstrated its full-day operational capability across dynamic movement, dexterity tasks, interactive activities, and industrial simulations. The demonstration publicly validated the K2's claimed battery endurance under continuous, varied workloads.[11]
On September 26, 2025, Kepler officially announced the start of mass production for the K2 Bumblebee. The company described it as the world's first commercially available hybrid-architecture humanoid robot to enter mass manufacturing. The base model was priced at RMB 248,000 (approximately $34,000 USD), which Kepler said broke through the "million-yuan threshold" that had been typical of prototype humanoid robots. Framework agreements covering several thousand units, with total contract value in the hundreds of millions of yuan, were reported. Target deployment sectors included logistics, manufacturing, research and development, government exhibitions, and specialized industrial operations.[3]
At IROS 2025, Kepler formally launched its open developer platform and announced the Lighthouse Program, a partnership initiative with developers and industry collaborators providing technical resources, market channels, and funding opportunities. The open platform introduced access to Kepler's microkernel-based Nebula OS, standardized APIs, a high-fidelity simulation and digital twin environment, and Kepler Studio, a graphical drag-and-drop interface for assembling robot motion primitives.[12]
Hu Debo serves as CEO and co-founder of Kepler Robotics. His professional background spans both technology and robotics industries. Prior to founding Kepler, Hu worked at Huawei, one of the world's largest telecommunications equipment companies, and at PowerVision Robot Corporation, a Chinese technology company known for its drone and underwater robotics products. He also held a position at Hubert Tech Oy, a Finnish technology firm.[6][7]
Hu earned his master's degree in scientific computing from KTH Royal Institute of Technology in Stockholm, Sweden (2003 to 2005).[7] His philosophy for Kepler centers on what he calls the "genuine integration into thousands of real-world applications" as the primary driver of the humanoid robot industry's growth, rather than focusing on demonstrations or research breakthroughs alone. He has described the Forerunner robots as tools that will transform productivity and bring about a fundamental change in the structure of work.[2][9]
Kepler's humanoid robots are marketed under the Forerunner brand. The original series (K1, D1, S1) shares a common 178 cm, 85 kg platform with 40 degrees of freedom. The K2 Bumblebee represents the fifth-generation design, with a lighter, more capable chassis.
| Model | Year introduced | Height | Weight | DOF | Hand DOF | Payload | Status | Price |
|---|---|---|---|---|---|---|---|---|
| Forerunner K1 | November 2023 | 178 cm | 85 kg | 40 | 6 per hand | 25 kg | Succeeded by K2 | $20,000 - $30,000 |
| Forerunner D1 | 2024 | 178 cm | 85 kg | 40 | 6 per hand | 25 kg | In production | ~$30,000 |
| Forerunner S1 | 2024 | 178 cm | 85 kg | 40 | 6 per hand | 25 kg | In production | ~$30,000 |
| Kepler K2 Bumblebee | October 2024 | 175 cm | 75 kg | 52 | 11 per hand | 30 kg | Mass production | ~$34,000 |
The Forerunner K1 was Kepler's inaugural humanoid robot, released in November 2023 and first showcased internationally at CES 2024. Designated as the "heavy-duty powerhouse" of the Forerunner lineup, the K1 was designed for construction, industrial manufacturing, disaster relief, and logistics. It features 40 degrees of freedom, proprietary planetary roller screw actuators delivering up to 8,000 N of thrust, five-fingered dexterous hands with 12 DOF total (6 per hand), and a total payload capacity of 25 kg. The K1 operates on Kepler's Nebula AI system with 100 TOPS of computing power and supports up to 8 hours of battery life.[1][2]
The K1 was succeeded by the K2 Bumblebee in October 2024.
The Forerunner D1 is a dexterity-focused variant of the Forerunner platform, optimized for precise human-like interaction and intricate manipulation tasks. It shares the same physical platform as the K1 and S1 (178 cm, 85 kg, 40 DOF) but is tailored for healthcare environments, precision manufacturing, and settings that require nuanced physical interaction with people or delicate objects.[13][14]
The Forerunner S1 is the agility-focused variant, designed for speed and maneuverability. It excels in exploration, search and rescue operations, and navigating tight or confined spaces where nimbleness takes priority over raw payload capacity. Like the D1, it shares the base Forerunner platform.[13][14]
The Kepler K2 Bumblebee, first unveiled at GITEX GLOBAL 2024, is the company's flagship commercial product. Despite its sequential naming, the K2 represents Kepler's fifth-generation design. It features 52 degrees of freedom, a hybrid serial-parallel actuation architecture combining planetary roller screw linear actuators with rotary actuators, and rope-driven dexterous hands with 11 DOF per hand. Each fingertip incorporates 96 flexible tactile sensor contact points, and each finger has 25 force-sensing contact points, along with 6-axis force/torque sensors at each wrist.[9][15]
The K2 is available in three configurations: Bipedal Basic (for industrial deployment), Bipedal Developer (with open platform access for researchers), and Wheeled Developer (a wheeled-base variant for R&D labs). Mass production began in September 2025 at a base price of RMB 248,000.[3]
The "Bumblebee" codename has drawn industry attention because it was also a name used by Tesla for an early prototype of its Optimus humanoid robot. Kepler has acknowledged the architectural parallels between its hybrid design and Tesla's approach, leaning into the comparison as a deliberate positioning strategy.[16]
A central engineering innovation across Kepler's product line is the use of proprietary planetary roller screw actuators. These actuators convert rotary motion into linear motion through planetary drive and threaded engagement. Compared to conventional ball screw systems, they offer lower friction, higher positioning accuracy, superior load-bearing capacity, smoother operation, and longer operational life. In the K1, these actuators deliver up to 8,000 Newtons (approximately 1,798 pound-force) of thrust to the elbow, knee, and ankle joints.[1]
The K2 Bumblebee extends this concept with a hybrid serial-parallel architecture that combines the planetary roller screw linear actuators with rotary actuators. The linear actuators serve as the primary "leg muscles" and arm drive mechanisms, while the rotary actuators provide fine-tuning adjustments, gait switching, and terrain adaptability. This hybrid configuration achieves up to 81.3% energy conversion efficiency and enables a human-like straight-knee bipedal gait.[17]
All Kepler robots are powered by the proprietary Nebula artificial intelligence system. In its original form (deployed on the K1, D1, and S1), Nebula integrates a high-performance motherboard with 100 TOPS (Tera Operations Per Second) of computing power. The system supports four primary functions:[1][2]
Kepler also deploys a cloud-based multimodal large language model for complex reasoning alongside a smaller, industry-specific model running locally on the robot for faster response times in operational scenarios.[13]
For the K2 Bumblebee, Kepler developed Nebula OS, a microkernel-based operating system that integrates perception, decision-making, and execution into a unified system. Nebula OS processes data from over 80 integrated sensors and provides the foundation for the company's VLA+ (Vision-Language-Action plus) AI model. The VLA+ system interprets natural language commands and translates them into actionable task sequences, supporting semantic recognition, reasoning, and planning across operations such as sorting, assembly, guided tours, and loading/unloading tasks.[11][17]
The VLA+ model is trained using a "dual-data flywheel" methodology that combines simulated data (for general perception and language comprehension via GPU-accelerated reinforcement learning) with real-world datasets (for learning from human movement patterns through imitation learning).[17]
Kepler's hand technology has evolved significantly across generations. The original Forerunner series features five-fingered hands with 12 degrees of freedom across both hands (6 DOF per hand). The K2 upgraded to rope-driven hands with 11 DOF per hand, 96 flexible sensor contact points per fingertip, 25 force-sensing contact points per finger, and 6-axis force/torque sensors at each wrist. These tactile capabilities allow the K2 to handle delicate objects, differentiate surface textures, and perform precise assembly tasks in industrial settings.[9][15]
Kepler Robotics has raised a total of approximately $14.4 million as of 2025. Since early 2025, the company completed three funding rounds, attracting strategic investors from across the industrial and technology sectors.[3][5]
| Round | Date | Key investors |
|---|---|---|
| Angel/Seed | 2024 | Undisclosed |
| Pre-A | Early 2025 | Tao Motor, Friend, Zhaofeng, Hanwei |
| Seed (Tracxn-reported) | April 2025 | Jirfine Intelligent Equipment, Veichi, Keli Sensing |
| Additional strategic rounds | 2025 | Hangzhou Kelin Electric |
Notable investors include Tao Motor (an automotive company), Henan Hanwei Electronics Company (a sensor technology firm), Jirfine Intelligent Equipment, Zhejiang Zhaofeng, Veichi (an industrial automation company), and Keli Sensing Technology. The involvement of industrial automation and sensor companies among the investors reflects Kepler's positioning as an industrial robotics company with deep supply chain integration.[3][18]
The company has not publicly disclosed its valuation. Kepler claims that over 80% of its core hardware is developed and manufactured in-house, which supports cost control and supply chain reliability.[3]
At IROS 2025, Kepler launched a comprehensive open developer platform to build a global ecosystem around its humanoid robots. The platform comprises four core components:[12]
Full-stack openness. Kepler opened access to the core of its microkernel-based Nebula OS, with standardized software and hardware interfaces including robotic arm control interfaces, motor APIs, and modules for vision, navigation, and voice.
Integrated perception-decision-control toolbox. A multimodal interaction engine integrating visual, auditory, and tactile data for perception, decision-making, and execution.
High-fidelity simulation and digital twin. A physics-accurate virtual testing environment enabling prototyping and iteration with one-click deployment from simulation to physical robots.
Kepler Studio. A graphical drag-and-drop interface that allows developers to assemble motion primitives using visual tools and natural language input. Kepler plans a skill marketplace where developers can share and monetize motion sequences and task routines.[12]
The company also announced the Lighthouse Program, a partnership initiative providing technical resources, market channels, and funding opportunities to developers and industry collaborators working to accelerate the commercialization of humanoid robot applications.[12]
Kepler has articulated a three-stage commercial deployment strategy for its humanoid robots:[9]
The company positions the K2 Bumblebee at a price point where it can perform work equivalent to approximately 1.5 full-time human employees within comparable timeframes. This ROI framework targets labor-intensive industries facing workforce shortages, particularly in China's manufacturing sector.[3][10]
Kepler's target deployment sectors include logistics, manufacturing, research and development, government exhibitions, and specialized industrial operations. The SAIC-GM factory deployment in April 2025 represented the first major validation of this strategy in an active automotive manufacturing environment.[4]
Kepler operates in a rapidly expanding global humanoid robotics market valued at $2.03 billion in 2024 and projected to surpass $13 billion by 2029. Chinese companies accounted for nearly 90% of global humanoid robot shipments in 2025, establishing China as the dominant force in commercial humanoid robotics production.[19]
| Company | Key model | 2025 activity | Price point |
|---|---|---|---|
| AgiBot | Various industrial models | ~5,100 units shipped (39% global share) | From $14,500 |
| Unitree Robotics | G1, H1, R1 | ~5,500 units shipped | From $5,900 |
| UBTECH | Walker S2 | ~1,000 units shipped | Not publicly disclosed |
| Kepler Robotics | K2 Bumblebee | Framework orders for thousands | ~$34,000 |
AgiBot, a Shanghai-based company, achieved annual shipment volume of over 5,100 units in 2025, capturing approximately 39% of the global humanoid robot market according to industry analyst Omdia. Unitree Robotics of Hangzhou contested this claim, with CEO Wang Xingxing stating the company shipped approximately 5,500 humanoid robots in the same period. UBTECH of Shenzhen recorded shipments of approximately 1,000 units.[19]
Unitree's pricing strategy is notably aggressive, with its cheapest model (the R1) starting at just $5,900, compared to AgiBot's lowest-cost model at $14,500 and Kepler's K2 at approximately $34,000. However, these robots target different market segments and capability tiers.[19]
Beyond the Chinese market, Kepler competes with international humanoid robotics programs including Tesla's Optimus, Boston Dynamics' Atlas, Figure AI's Figure series, and Agility Robotics' Digit. Kepler has explicitly positioned the Forerunner series as a competitor to Tesla's Optimus, and industry observers have noted architectural similarities between the K2's hybrid design and Optimus.[1][16]
| Company | Key model | Target market | Notable features |
|---|---|---|---|
| Tesla | Optimus Gen 3 | Factory automation | Integrated with Tesla AI; target sub-$20,000 at scale |
| Figure AI | Figure 03 | Industrial/commercial | OpenAI partnership; BMW deployment |
| Agility Robotics | Digit | Warehouse logistics | Amazon warehouse testing |
| Boston Dynamics | Atlas | Research/industrial | Fully electric; advanced mobility |
Kepler differentiates itself from international competitors through its aggressive pricing, its hybrid architecture, its open developer platform and ecosystem approach, and its focus on practical industrial deployment over research demonstrations.[3][9]