Which robot kits work with Hugging Face LeRobot?
The SO-101 arm was built for LeRobot by The Robot Studio and Hugging Face: Seeed sells the servo kit for $249.90 (in stock) and an assembled kit for $299 (in stock). phospho's Starter Pack, two SO-100 arms with wrist cameras, starts at €995. HopeJR's arm and hand have LeRobot docs but no seller. Prices checked 7 Nov 2026.
Three kits, side by side
| Kit | What you get | Price | LeRobot |
|---|---|---|---|
| SO-101 Seeed Studio · checked 7 Nov 2026 | A leader arm you move by hand and a follower arm that copies it, 12 STS3215 servos | $249.90 servo kit, in stock + $29.90 printed parts or $299 assembled | Official setup guide from Hugging Face. LeRobot SO-101 docs |
| phospho Starter Pack phospho · checked 7 Nov 2026 | 2 SO-ARM100 arms, 2 wrist cameras, a Meta Quest app and the phosphobot software | from €995 plus shipping | phospho says it is fully LeRobot and Hugging Face compatible. phospho |
| HopeJR arm and hand Parts list · checked 7 Nov 2026 | A 7-motor arm, a 16-motor hand and an exoskeleton you wear to steer it | about $3,000 for the full humanoid (Hugging Face estimate, May 2025) | Setup guide for arm, hand, glove and exoskeleton. LeRobot HopeJR docs |
Which one to pick
SO-101 if you want the cheapest path and Hugging Face's own setup guide. The maker's parts list totals $229.88 for both arms and $121.94 for one follower arm, before printing. BOM. Seeed is the seller we check every day; the maker's repo lists these kit sellers: Seeed, WowRobo, RobotEd, Robonine, PartaBot, ForgeMotion Labs, RoboSEasy, NeoBot, Autodiscovery.
phospho Starter Pack if you want to steer the arms with a Meta Quest headset, a gamepad or a keyboard and skip the build. Shipping averages 15 to 30 days and the order is refundable before it ships. phospho
HopeJR if you want a dexterous hand. It is the hardest of the three (4 of 5): a tendon-driven hand, motors sourced from Alibaba links and no store listing we could find. Arm BOM
What you do with LeRobot on these kits
All three follow the same loop: steer the robot yourself (leader arm, headset or exoskeleton), record what it does as a dataset, then train a model so the robot repeats the task on its own. LeRobot repository
People also ask
What is the cheapest LeRobot kit?
The SO-101. Its parts list totals $121.94 for one follower arm and $229.88 for a leader and follower pair, before 3D printing. Seeed's servo kit is $249.90. BOM
Do I need two arms?
To teach the SO-101 by hand, yes: you move the leader and the follower copies it. The maker also prices a single follower arm at $121.94.
Is the phospho kit an SO-101?
No. The Starter Pack ships two SO-ARM100 arms, the earlier version of the same design.
Can I buy HopeJR?
We found no seller. Hugging Face estimated about $3,000 per unit in May 2025, and the parts list on GitHub has links but no prices.
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