Type: HumanoidThe Robot Studio + Hugging Face
Build difficulty: 4 of 5Advanced
License: Apache LicenseHumanoid/LICENSE in the repo; the repo root declares no license
How to get it: Build from partsParts list below

Where to buy the HopeJR

This one is built from parts you source yourself. The parts list has every part and where it is sold.

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What it is

HopeJR is an open-source humanoid with dexterous hands, designed by The Robot Studio and Hugging Face. The GitHub repo has two parts: the full Humanoid design, and the newer Arm (arm, hand and teleop exoskeleton) wired into LeRobot for recording, training and inference. Hugging Face's 2025 announcement gave about $3,000 per unit as an estimate; no checkable store listing was found.

Difficulty 4 of 5. Tendon-driven 16-motor hand, 7-motor arm and an exoskeleton to print, source from Alibaba and calibrate source

What it can do

Teleoperate the arm and hand with a matching exoskeleton, joint for joint
Record data, train and run policies through LeRobot
3D-print and assemble without soldering (Arm build, custom PCBs)

Demo and build videos

Making Next Gadget | Meet Hugging Face HopeJR - A humanoid robot arm & hand for dexterous manipulationSeeed Studio

Open Source Robotics: Advances in Teleoperation for Dexterous Manipulation by Martino RussiOpen Data Science and AI Conference

Features of a $3000 Humanoid Robot; World's Most Affordable RobotChris Wabs

HOPEJr, 2nd draft, Carbon Pelvistherobotstudio · 1,547 views

【GOSIM HANGZHOU 2025】Martino Russi：HopeJr: A $500 Open-Source Humanoid Arm for EveryoneGOSIM Foundation · 195 views

Recent news and releases

Hugging Face1 public datasets match "hopejr"checked 7 Nov 2026
GitHub releasehuggingface/lerobot: Release v0.7.05 Nov 2026
GitHub commithuggingface/lerobot: chore(dependencies): Bump lerobot to 0.7.1 (#5269)5 Nov 2026
GitHub commithuggingface/lerobot: chore(dependencies): Bump lerobot to 0.7.0 (#5268)5 Nov 2026
GitHub releasehuggingface/lerobot: Release v0.6.13 Aug 2026
GitHub releasehuggingface/lerobot: Release v0.6.06 Jul 2026
GitHub commitTheRobotStudio/HOPEJr: Update stl with clearances4 May 2026
GitHub commitTheRobotStudio/HOPEJr: Delete old STL4 May 2026

Parts list and links

Sourced facts

10 facts with links

Price estimate: About $3,000 per unit (Hugging Face estimate, depends on tariffs) source · checked 7 Nov 2026
Shipping plan (May 2025): CEO expected to ship at least the first few units by end of 2025; waitlist open then. Current availability not verified source · checked 7 Nov 2026
Degrees of freedom: 66 actuated DoF for the full humanoid (per TechCrunch) source · checked 7 Nov 2026
Arm + hand DoF: 23: 16 in the hand, 7 in the arm source · checked 7 Nov 2026
Latest Arm release: Reflects Martino Russi's work at Hugging Face as of 26/06/2025: LeRobot integration, exoskeleton teleop, no soldering, underactuated DIP finger joint source · checked 7 Nov 2026
Humanoid folder: Original work by Rob Knight with updates for Robstride RS02 motors; includes URDF and legs source · checked 7 Nov 2026
Motors in Arm BOM: 16 SCS0009, 2 STS3250, 4 STS3215, 1 SM8512BL (Feetech), sourced via Alibaba links source · checked 7 Nov 2026
Sold as kit?: No seller found: Seeed search 404, The Robot Studio listings elsewhere show only SO-ARM101 source · checked 7 Nov 2026
LeRobot docs: Hardware setup: arm, hand, glove and exoskeleton calibration source · checked 7 Nov 2026
Repo activity: Last push 2026-05-04, 840 stars source · checked 7 Nov 2026

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