Stanford University · United States · Compact
ToddlerBot
A knee-high, 3.4 kg, 30-DoF 3D-printed open-source humanoid from Stanford that does push-ups, pulls a wagon, and transfers simulated policies zero-shot to reality for under $6,000, if you can build and train it yourself.
$6,000
Verified last monthDelivered to United States: from ~$6,101(~€5,435)
What is in the crate
2 included|8 not included
Grippers, not dexterous hands
ToddlerBot ships with two interchangeable open-source end-effector designs rather than dexterous multi-finger hands: a parallel-jaw gripper for grasping, and a compliant palm for palm-like postures (push-ups, wagon pushing). Both are 3D-printed and part of the open design; the parallel-jaw gripper adds actuated DoF beyond the 30-DoF body count. There are no articulated fingers.
In the crate
Reality check
This is a research kit, not a robot: for roughly $6,000 you get servos, a printed chassis, and Python code, then you assemble it, print the body, add your own Jetson and battery, and train the policies yourself. It runs about 19 minutes before overheating hurts stability, tops out at 0.25 m/s, and the mechanical design is licensed non-commercial. Buy it to do ML research; do not buy it expecting anything to work on power-up.
Can you get one, and what will it cost?
A planning estimate with machine, freight, duty, and tax shown separately.
Home-market sourcing estimate. Confirm local availability with the seller.
Spare batteries and other accessories are excluded. Confirm compatibility and pricing with the seller.
- Machinebase
- $6,000
- Freightlocal delivery
- $101 - $393
- Import duty0%
- 0
- Sales tax0%
- 0
- Broker and handling
- 0
- Estimated total to United States
- $6,101 - $6,393
Converted from euros at 1.1225 USD per euro (ECB reference rate, 2 October 2026): €5,435 - €5,695 in euros.
Estimate, not a quote. Every rate is shown so the maths is auditable.
Lowest delivered price
~$6,101 - $6,393
Bought in United States
Confirm local availability with the seller.
Compare sellersImport requirements for United StatesConformity, battery shipping, paperwork, and source documents. Review before ordering.
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Open the import referenceWhere to buy
Catalog checked 2026-09
Individuals and companies can inquire. Confirm the configuration, stock, and delivery with the seller.
Price notes: A complete build totals "under $6,000 USD," with ~90% of that going to the motors (ROBOTIS DYNAMIXEL) and the NVIDIA Jetson Orin NX computer. The concrete purchasable pieces: the ROBOTIS ToddlerBot Bundle Kit (DYNAMIXEL parts only) is $4,335.51 (currently sold out); a WowRobo pre-assembled chassis is $4,299 (also sold out, with global pre-order open and a ~30-day lead). On top of either you still buy the Jetson (~$600-900), a battery, WiFi module, cameras/IMU (on the parts kit), and print the shells. No official EUR price; both vendors quote USD and add duties/VAT at destination.
- ROBOTIS (bundle kit) (opens in a new tab)
United States
Official parts bundle for the open-source build (currently sold out). This is components, not a finished robot: you print the frame and assemble it.
Request a quote
Price not published
- WowRobo (opens in a new tab)
International seller
ToddlerBot 2.0 assembly version, for buyers who do not want to source parts themselves (currently sold out; global pre-order open, ~30-day lead).
Request a quote
Price not published
Prices remain in the seller’s listed currency. Tax, freight, options, and rental periods follow each seller’s terms. A seller’s region does not guarantee delivery to your address.
How the ToddlerBot rates
Editorial ratings based on listed specifications and sales availability. They do not measure task performance, autonomy, or reliability.
- Class
- Developer / demo platformA platform for demonstrations or robotics development. SDK access and supported tasks depend on the exact configuration.
- CapabilityHardware specification indicators
- 3/5
- Baseline: any humanoid+1
- Degrees of freedom: 30 DOF+1.5
- Dexterity: grippers, not dexterous hands+0.25
- Scale: 56 cm tall0
Key specifications
Height
56 cm
Width
n/a
Depth
n/a
Weight
3.4 kg
Degrees of freedom
30
Battery
~19 min
Payload
1.484 kg
Top speed
0.25 m/s
Understand before you buy
Size to scale
Drawn next to a 1.80 m (5 ft 11 in) person. Every robot on the site uses this same reference, so you can trust the comparison at a glance.
ToddlerBot: 56 cm / 1 ft 10 in, 3.4 kg
What it does on day onewith zero programming
Nothing autonomous on power-up. ToddlerBot is a research kit: out of the box you get a 3D-printed bipedal chassis driven by DYNAMIXEL servos plus a fully pip-installable Python codebase. Its headline feature is a high-fidelity digital twin with plug-and-play zero-point calibration and motor system identification, so a policy trained in MuJoCo simulation transfers zero-shot to the real robot. After assembly and calibration you can run the provided policies (walking at up to 0.25 m/s, push-ups, pull-ups, wagon pushing, bimanual and full-body manipulation) or teleoperate it with a handheld gaming PC, but there is no app, voice assistant, or ready-made behavior for a non-programmer.
Best for: Robotics and embodied-AI researchers, university labs, and serious makers who want an affordable, reproducible, fully open bipedal platform to develop and test sim-to-real reinforcement-learning and imitation-learning policies (loco-manipulation), not buyers wanting a finished consumer robot.
Documented uses
Robotics R&D / Manipulation research
The research project publishes locomotion and manipulation methods with a reproducible open design.
Parts bundles are not complete robots. Assembly, compute, printed end effectors and policy setup are required before these experiments.
Source reviewed 2026-09-09Assessment from published documentation, not an independent performance test. Applies to the configuration described above.
What it takes to developskills, gear, and SDK access
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