Asimov 1
A 1.2 m, 35 kg biped with mechanical and electrical CAD, a simulation model, and onboard software.
Project documentation
Before you build
Five answers, each linked to its source
What does it cost?
$20,000DIY Kit
The DIY Kit is listed as everything needed to build Asimov 1, unassembled, for $20,000. README
Can I sell what I build?
Yes, with creditCommercial use OK, with credit
Hardware CERN-OHL-S-2.0 · Software GPL-2.0. Licensing source
What’s open?
3 of 6CAD: AvailableBOM: PartialPCB: AvailableCode: Not documentedSim: AvailableGuide: Partial
BOM, guide partial · code not documented. All six files
What does it run on?
Simulation: MuJoCo simulation model. Software
Is it maintained?
Active
Latest activity Oct 30, 2026 · 33 commits in the last 52 weeks · 9 contributors Activity
01 / Under the shell
The specifications.
Hardware, build and software on one sheet. Every fact links to where we found it.
Asimov 1 is a 1.2 m, 35 kg biped with 25 actuated degrees of freedom. The repository contains mechanical and electrical CAD, a simulation model, and onboard software. Its listed structural materials are 7075 aluminium and MJF PA12 nylon.
Hardware
- Actuators
- Not documented Documentation
- Build
- Not documented · see the repository Documentation
- Height
- 1.2 m README
- Weight
- 35 kg README
- Actuated degrees of freedom
- 25 README
- Structural materials
- 7075 aluminium, MJF PA12 nylon README
- Onboard compute
- Raspberry Pi 5 (media + network) and Radxa CM5 (motion control) README
Building it
- Self-source
- The README directs builders to pull the BOM and fabricate everything themselves. README
Software & simulation
- Runs on
- MuJoCoRaspberry Pi
02 / The files behind the robot
What’s open.
Six parts of the build, each checked separately. Gaps stay visible.
| Part | Status | What’s there | License | Source |
|---|---|---|---|---|
| CAD | Available | Mechanical CAD is included in the repository. | Not documented | mechanical/ |
| Bill of materials | Partial | The BOM is linked in the assembly preparation documentation. | Not documented | README |
| Electronics | Available | Electrical schematics and PCB files are included. | Not documented | electrical/ |
| Code | Not documented | Not documented | Not documented | No source found |
| Simulation model | Available | MuJoCo simulation model. | Not documented | sim-model/ |
| Assembly guide | Partial | Assembly manual is linked. | Not documented | manual.asimov.inc |
03 / Know before you build
Can you sell it?
Yes, with creditCommercial use OK, with credit
The hardware design is CERN-OHL-S-2.0. The code is GPL-2.0. Commercial use is allowed if you keep the maker’s copyright and license notices. Changes you distribute must be shared under the same license.
- Hardware
- CERN-OHL-S-2.0
- Software
- GPL-2.0
04 / The upstream project
Is it maintained?
ActiveLatest activity Oct 30, 2026, 0 days before the snapshot
- Stars
- 1,373
- Forks
- 236
- Contributors
- 9
- Latest release
- None recorded
Snapshot captured Oct 30, 2026. Recorded figures, not live metrics. Active: activity within 90 days of the snapshot. Quiet: within a year. Dormant: longer.
05 / Parts & kits
A head start.
Maker-listed sellers only. No affiliate links or paid placement.
MAKER’S COST
$20,000
DIY Kit
The DIY Kit is listed as everything needed to build Asimov 1, unassembled, for $20,000.
READMEKit availability is not documented in our reviewed sources.
06 / Side by side
Compare with other humanoids.
The three humanoids with the closest documented maker’s cost. Same sources, same rules.
| Robot | Cost | Open files | Can I sell it? | Runs on | Maintained | Stars |
|---|---|---|---|---|---|---|
| Asimov 1This robotmenloresearch | $20,000DIY Kit | 3 of 6 | Yes, with creditHW CERN-OHL-S-2.0 · SW GPL-2.0 | MuJoCoRaspberry Pi | ActiveOct 30, 2026 | 1,373 |
| ToddlerBotHaochen Shi, C. Karen Liu et al. · Stanford | Under $6,000whole robot | 5 of 6 | NoHW CC BY-NC-SA 4.0 · SW MIT | MuJoCoPython | QuietApr 19, 2026 | 785 |
| Poppy Torsopoppy-project | €5,300complete kit | 4 of 6 | Yes, with creditHW Creative Commons BY-SA · SW GPL v3 | Python | DormantMar 24, 2022 | 51 |
| MicrobanMarc Duclusaud | About $567Microban robot | 5 of 6 | NoHW CC BY-NC-SA 4.0 · SW GNU GPL v3 | Raspberry Pi | ActiveOct 30, 2026 | 645 |
| This robotAsimov 1 | ToddlerBot | Poppy Torso |
|---|---|---|
| Cost | ||
| $20,000 | Under $6,000 | €5,300 |
| Can I sell it? | ||
| Yes, with credit | No | Yes, with credit |
| Open files | ||
| 3 of 6 | 5 of 6 | 4 of 6 |
| Runs on | ||
| MuJoCo, Raspberry Pi | MuJoCo, Python | Python |
| Maintained | ||
| ActiveOct 30, 2026 | QuietApr 19, 2026 | DormantMar 24, 2022 |
Upkeep is measured against each robot’s own snapshot. Costs keep the maker’s scope, so check what each figure covers.
See them in the table07 / Follow the evidence
Open books.
Repository files are pinned to commit df6ffda. Websites and papers are listed with their review dates.
- 01README.md at df6ffdaReviewed Oct 30, 2026
- 02HARDWARE-LICENSE.txt at df6ffdaReviewed Oct 30, 2026
- 03SOFTWARE-LICENSE.txt at df6ffdaReviewed Oct 30, 2026