K-Scale Labs K-Bot
Open-source 1.4 m developer humanoid from K-Scale Labs, aimed at researchers and hobbyists; discontinued after the company shut down in November 2025.
Discontinued: K-Scale Labs shut down in November 2025, cancelled orders and refunded deposits after shipping its first Founder's Edition units.
Decent humanoid robot (60/100). It stands out most for battery life (92/100). Highlight: fully open-source hardware and software. Main trade-off: discontinued, company closed.
Score breakdown
Rated across 6 criteria
Specifications
- Availability
- Discontinued
- Payload
- 10 kg
- Runtime
- 240 min
- Height
- 140 cm
- Weight
- 34 kg
- Locomotion
- Bipedal
- Main use
- Research
- Made in
- United States
- Year
- 2025
- SDK
- Open SDK
Specs checked September 2026. Sources: archive.org, humanoidsdaily.com, mikekalil.com, github.com, deepnewz.com. A missing value has not been published by the maker.
Pros
- Fully open-source hardware and software
- Light at 34 kg
- Public CAD, firmware and docs
Cons
- Discontinued, company closed
- No manufacturer support
- Small 10 kg payload
Owner reviews
A capable humanoid robot with a few compromises to weigh
In our independent assessment, the K-Scale Labs K-Bot earns 60/100 — a decent humanoid robot.
Its strongest area is battery life (92/100), followed by payload (80/100). In practice, fully open-source hardware and software.
The main caveat is availability, where it scores 40/100. Specifically, discontinued, company closed.
Worth a look if its price or specific features fit your needs.
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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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