Open hardware and software licenses
Hardware is licensed under CERN-OHL-S and software under GPL v3, per the project README. Press reports name MIT for the software, so the sources differ. [4][3]
Price & availability
from $8,999
Starting · USD · OfficialOfficial — stated by the manufacturer or organizer
Original price: US$8,999
Source: Launch HN: K-Scale Labs (YC W24) - Open-Source Humanoid Robots (founders' post) ↗ · Jul 3, 2025
Founder's Edition launch price for the first 100 units. The official site later listed the second batch at US$10,999, reduced from US$16,000. Remaining pre-orders were cancelled in November 2025.
Discontinued from Sep 24, 2025
Current dataset status: Discontinued.
Other quoted prices
Historical, launch and third-party figures remain separated from the current price.
- from $10,9992025 · Press
US$10,999
Second-batch price per Compare Humanoids; the listing date is not stated and the batch sold out by late September 2025
K-Scale Labs K-Bot — Specs & EU Price ↗
Product overview
About K-Scale K-Bot
K-Bot was an open-source humanoid from K-Scale Labs, marketed as a development platform. K-Scale announced the Founder's Edition in July 2025 at about US$8,999 for the first 100 units. A third-party catalog lists it at 140 cm and 34 kg, with 20 degrees of freedom, a 10 kg maximum payload and up to four hours of runtime.
The first Founder's Edition unit was delivered on 24 September 2025, and the second batch, listed at US$10,999 according to Compare Humanoids, sold out by late September. In November 2025 K-Scale cancelled its remaining K-Bot pre-orders, said customer deposits would be refunded and laid off most of its team.
K-Scale released its IP as open source. Humanoids Daily reports hardware under CERN-OHL-S-2.0 and software under MIT, while the project README's license section names GPL v3 for software, so the sources differ. Reports also conflict on whether the company has fully shut down.
K-Bot is discontinued, and no current sales channel is verified. Compare Humanoids says the shutdown was announced in November 2025 and advises checking the company's status before relying on its pricing.
“K-Bot is an open-source humanoid robot from K-Scale Labs.”
Capabilities
Key features
20 DoF, 140 cm, 34 kg
A third-party catalog lists 20 degrees of freedom, a 140 cm height and a 34 kg weight. [6]
Up to 4 hours runtime, 10 kg payload
The catalog lists up to 240 minutes of runtime and a 10 kg maximum payload. [6]
First unit delivered September 2025
K-Scale announced on 24 September 2025 that the first Founder's Edition K-Bot had been delivered to a user. [9]
Pre-orders cancelled, deposits refunded
In November 2025 K-Scale cancelled all remaining K-Bot pre-orders and said customer deposits would be refunded. [3]
Hardware profile
Specifications
Official — stated by the manufacturer or organizerReported — stated by a credible third partyEstimated — derived or approximate
Body
Mobility
- Peak joint torque
- 120 N·mOfficial — stated by the manufacturer or organizer[7]Ten-second peak output listed for the RobStride RS04 actuator, the strongest actuator used in K-Bot; continuous torque is lower.
Power
- Runtime
- 4 hReported — stated by a credible third party[6]Up to four hours; independent catalog value compiled from the now-offline manufacturer site.
Hands & Manipulation
- Payload
- 10 kgReported — stated by a credible third party[6]Published as maximum payload; the manufacturer did not specify whether this was an arm or whole-robot limit.
Compute & Sensing
- Onboard compute
- Raspberry Pi 5Official — stated by the manufacturer or organizer[8]The final open electrical documentation specifies a Raspberry Pi 5. Launch material had discussed Amlogic and NVIDIA compute options.
- Sensors
- RGB stereo ultra-wide camera, Far-field microphones, Stereo speakersReported — stated by a credible third party[6]Independent catalog list compiled from the now-offline manufacturer site.
Show unknown fields (7)
Mobility
- Maximum speed
- Not published
Power
- Battery
- Not published
- Charge time
- Not published
- Swappable battery
- Not published
Hands & Manipulation
- DoF per hand
- Not published
- Hand / end effector
- Not published
Compute & Sensing
- AI stack
- Not published
Official footage
Videos
What’s Inside K-Bot? Full Hardware Breakdown
K-Scale Labs
Quick answers
K-Scale K-Bot FAQ
How much does K-Scale K-Bot cost?
K-Scale K-Bot is listed at from $8,999 (Starting, official). The source also states US$8,999. [1][5][6]
Can you buy K-Scale K-Bot?
No general order page is verified. K-Scale K-Bot is currently classified as discontinued. [1]
How tall is K-Scale K-Bot and how much does it weigh?
K-Scale K-Bot is 140 cm tall and weighs 34 kg (Independent catalog value compiled from the now-offline manufacturer site.). [6]
How long does the K-Scale K-Bot battery last?
The stated runtime is 4 hours per charge; Up to four hours; independent catalog value compiled from the now-offline manufacturer site.. [6]
How much can K-Scale K-Bot carry?
The listed payload is 10 kg; Published as maximum payload; the manufacturer did not specify whether this was an arm or whole-robot limit.. [6]
How many degrees of freedom does K-Scale K-Bot have?
K-Scale K-Bot has 20 listed degrees of freedom; The final mechanical documentation lists 20 actuators and 20 named joints across the head, legs and arms.. [7]
Does K-Scale K-Bot have an open SDK?
Yes. K-Scale K-Bot is recorded as providing a public developer SDK or API. [1]
Who makes K-Scale K-Bot?
K-Scale K-Bot is made by K-Scale Labs, based in United States. [1]
Side by side
Compare K-Scale K-Bot
Choose up to four robots for a sourced specification and price comparison.
Evaluation footprint
Benchmarks & competitions
No benchmark embodiments or results reference this robot yet.
Related
Similar robots
Evidence
Sources
- [1]Launch HN: K-Scale Labs (YC W24) - Open-Source Humanoid Robots (founders' post) ↗Hacker News · official · accessed Oct 8, 2026
- [2]Watch: K-Scale Labs CEO explains shutdown, 'I bet the farm on the K-Bot launch' ↗Humanoids Daily · press · accessed Oct 8, 2026
- [3]K-Scale Labs cancels K-Bot orders, open-sources all IP after funding fails ↗Humanoids Daily · press · accessed Oct 8, 2026
- [4]kscalelabs/kbot (K-Bot project repository) ↗K-Scale Labs (GitHub) · official · accessed Oct 8, 2026
- [5]Your personal open-source humanoid robot for $8,999 (AI Engineer World's Fair 2025 talk) ↗AI Engineer · video · accessed Oct 8, 2026
- [6]K-Scale Labs K-Bot — Specs & EU Price ↗Compare Humanoids · press · accessed Oct 8, 2026
- [7]K-Bot mechanical system ↗K-Scale Labs · official · accessed Oct 8, 2026
- [8]K-Bot electrical system ↗K-Scale Labs · official · accessed Oct 8, 2026
- [9]K-Scale Labs delivers first K-Bot humanoid, sells out second batch ↗Humanoids Daily · press · accessed Oct 8, 2026