Kepler K2
Full-size Kepler humanoid with hybrid roller-screw actuation and 8-hour runtime, built for factory work such as handling, inspection and assembly.
Kepler announced mass production and first customer shipments in September 2025, citing framework agreements for several thousand units.
Excellent humanoid robot (88/100). It stands out most for mobility (dof) (100/100). Highlight: up to 8 hours runtime. Main trade-off: heavy at 75 kg.
Score breakdown
Rated across 6 criteria
Specifications
- Availability
- Shipping
- Degrees of freedom
- 52
- Payload
- 30 kg
- Runtime
- 480 min
- Height
- 175 cm
- Weight
- 75 kg
- Hand DoF (per hand)
- 11
- Locomotion
- Bipedal
- Main use
- Industrial
- Made in
- China
- Year
- 2025
- SDK
- Open SDK
- Announced price
- ¥248,000
Specs checked September 2026. Sources: gotokepler.com, therobotreport.com, interestingengineering.com, prnewswire.com, prnewswire.com. A missing value has not been published by the maker.
Pros
- Up to 8 hours runtime
- 30 kg dual-arm payload
- 11-DoF tactile hands
Cons
- Heavy at 75 kg
- Walking speed not published
- Price version unclear
Owner reviews
A top-tier humanoid robot we recommend without hesitation
In our independent assessment, the Kepler K2 earns 88/100 — an excellent humanoid robot.
Its strongest area is mobility (dof) (100/100), followed by battery life (100/100). In practice, up to 8 hours runtime.
The main caveat is dexterous hands, where it scores 84/100. Specifically, heavy at 75 kg.
At €29760, it's priced around the category average. For most buyers in this category, it's one of the best choices you can make.
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Sign in to write a reviewFrequently asked questions
Can I actually buy a humanoid robot?
Yes, but mostly research and developer models (Unitree, Booster, EngineAI and others) that ship today. Most general-purpose humanoids are still in paid pilots, pre-order or prototype: check the Availability line before you plan around one.
How much does a humanoid robot cost?
Small developer humanoids start at a few thousand euros; full-size research platforms start around 17,000 € and advanced ones reach about 100,000 € or more. Industrial humanoids are usually sold or leased on quote, so no public price is listed.
What can humanoids do today?
Current models walk, balance, carry modest payloads and perform scripted, learned or teleoperated tasks. Fully autonomous household help is still emerging.
What do degrees of freedom (DoF) tell me?
Each DoF is one joint axis the robot can move. More DoF, especially in the hands, means more dexterous manipulation, but also more to calibrate and maintain.
Do they come with an SDK?
Research-focused humanoids ship with an open SDK or ROS support for programming and experiments; commercial units are typically locked to the vendor's software.
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