Stanford University ToddlerBot 2.0 price & specs

Stanford (Haochen Shi et al.) ToddlerBot 2.0 (1)

Stanford (Haochen Shi et al.) ToddlerBot 2.0 (2)

Stanford (Haochen Shi et al.) ToddlerBot 2.0 (3)

~$6,000 DIY · $4,299 built

Out of stockRL walking30 DOFJetson Orin NXMuJoCo MJXLoco-manipulation

Weeks+Shipping: 4–8 wks (est.).

LEARN MORE (WowRobo) ↗

Overview

The most capable small research platform, and MuJoCo end to end, so MuJoCo sim experience transfers directly. The price is the problem ($4.3–6k, mostly Dynamixels), and both ready-made options were sold out. Get it for manipulation and whole-body skills, not just balance.

Type: Biped robot · Open-source RL bipeds
Maker: Stanford (Haochen Shi et al.)
Released: 2025
Price: ~$6,000 DIY · $4,299 built
Status: Out of stock
Best for: Professionals & labs
Programming: Open source (hardware + software)

Price and shipping

WowRobo assembled price excludes Jetson, Wi-Fi and batteries (sold out). ROBOTIS Dynamixel bundle $4,336 (sold out)

Shipping: 4–8 wks (est.). The WowRobo assembled unit (30-day pre-order) and the ROBOTIS bundle were both sold out. DIY means Dynamixels from ROBOTIS US plus a Jetson, then 1–2 weeks of printing and assembly. WowRobo ↗

Specifications

Category	Bipeds · Open-source RL bipeds
Released	2025
Country	USA
Availability	Out of stock
Sales	At least 5 built by outside teams within a week of release (2025, estimate) arXiv ↗
DIY build plans	ToddlerBot · parts under $6,000 (estimate) · difficulty 4/5
Programmability	Open source (hardware + software)
Built-in autonomy	Task-level · Carries out multi-step jobs on its own, such as inspections, deliveries or chores
LLM support	Possible via SDK · Open Python package for training and teleop, no built-in LLM.
MuJoCo simulation	Sim-to-real kit · Official MJX training and real-robot deployment. Also in MuJoCo Menagerie (toddlerbot_2xc, toddlerbot_2xm). toddlerbot ↗
NVIDIA Isaac simulation	Maker URDF only · Project publishes URDFs, no Isaac package. toddlerbot ↗
Gazebo simulation	Maker URDF only · Project publishes URDFs, no Gazebo package. toddlerbot ↗
Best for	Professionals & labs
Vision sensors	Camera, Depth camera
Actuators	Smart servos (Dynamixel, Feetech…)
Audio	Speaker, Microphone
Compute type	NVIDIA Jetson
Balance type	RL walking
Height	56 cm
Weight	3.4–3.7 kg
Compute	NVIDIA Jetson Orin NX 16 GB
Speed	0.25 m/s walk, 1 rad/s turn
DOF	30 Dynamixel (7/arm, 6/leg, 2 neck, 2 waist)
Sensors	2 fisheye cameras (stereo), BNO085 IMU, 2 mics, speaker
Balance	RL walking/turning policies trained in MuJoCo MJX, zero-shot transfer. Very robust per the project, survives ~7 falls before a part breaks.
SDK	toddlerbot Python package: MJX training, keyframe GUI, VR teleop, diffusion-policy manipulation

Common questions

How much does ToddlerBot 2.0 cost?

ToddlerBot 2.0 is listed at ~$6,000 DIY · $4,299 built. WowRobo assembled price excludes Jetson, Wi-Fi and batteries (sold out). ROBOTIS Dynamixel bundle $4,336 (sold out).

Can ToddlerBot 2.0 be bought today?

It is out of stock right now. The WowRobo assembled unit (30-day pre-order) and the ROBOTIS bundle were both sold out. DIY means Dynamixels from ROBOTIS US plus a Jetson, then 1–2 weeks of printing and assembly.