How is pricing calculated?

Pricing is based on the hourly rate of operators in your selected region. You only pay for the time operators spend controlling your robots.

What robots are supported?

We support 9+ robot arms including SO-100, Koch, Franka FR3, Franka Panda, WidowX 250, ViperX 300, ViperX 300s, and ALOHA.

What is the latency for teleoperation?

Our platform provides ultra-low latency of 30-70ms worldwide, enabling real-time responsive robot control.

Arm comparisons

Two arms, one decision

Every arm here records the same dataset format and trains the same models, so the choice is about hardware: which servos are on the bus, what voltage they need, what a set of parts costs and how much of the workflow is already tested.

3 comparisons
4 arms in the catalog
One dataset format for all of them

Every arm in detail Drive a real arm

SO-100 vs SO-101: what the revision actually changes

SO-100 or SO-101: the same Feetech STS3215 servos at 7.4 V, the same calibration and LeRobot workflow, about twenty euro apart. What the revised wrist changes.

SO-100: Feetech STS3215 bus servos, 7.4 V · SO-101: Feetech STS3215 bus servos, 7.4 V

SO-100 vs Koch v1.1: two servo buses, one data pipeline

SO-100 or Koch v1.1: Feetech STS3215 at 7.4 V against Dynamixel XL330 and XL430 on 5 V and 12 V rails, at roughly double the parts cost, same trainers.

SO-100: Feetech STS3215 bus servos, 7.4 V · Koch v1.1: Dynamixel XL330 and XL430, 5 V and 12 V rails depending on the servo

SO-100 vs LeKiwi: the same arm, plus a base you have to teach

SO-100 or LeKiwi: the same Feetech arm at 7.4 V on a 12 V three-wheel base. What the extra action dimensions do to recording, training and evaluation.

SO-100: Feetech STS3215 bus servos, 7.4 V · LeKiwi: Feetech STS3215 bus servos, 7.4 V for the arm, 12 V for the base

All four arms at a glance

The supply voltage is the row to read twice. Feetech STS3215 servos run on 7.4 V and a 12 V supply destroys them in seconds, which is why the Koch and the LeKiwi rails are called out separately.

Arm	Maker	Actuators	Servos	Supply	Parts cost	Support
SO-100SO-ARM100, SO100	TheRobotStudio and LeRobot	5 joints plus gripper, 6 actuators	Feetech STS3215 bus servos	7.4 V	roughly 110 to 150 euro per arm in parts	Fully supported
SO-101SO101	TheRobotStudio and LeRobot	5 joints plus gripper, 6 actuators	Feetech STS3215 bus servos	7.4 V	roughly 130 to 170 euro per arm in parts	Fully supported
Koch v1.1Alexander Koch arm, Koch arm	LeRobot community	5 joints plus gripper, 6 actuators	Dynamixel XL330 and XL430	5 V and 12 V rails depending on the servo	roughly 250 to 350 euro per arm in parts	Compatible
LeKiwiLeKiwi mobile base	LeRobot community	5 joints plus gripper on a three-wheel holonomic base	Feetech STS3215 bus servos	7.4 V for the arm, 12 V for the base	roughly 400 to 500 euro	Compatible

Parts cost is what the components come to, not a product price: none of these arms is sold here. The models you can train on any of them are under /policies, and the model comparisons stay under /compare.

The arm matters less than the data you record with it

A real SO-100 is online and free to drive from the browser. Try the motion you have in mind before you decide which arm to build.

Download the client Drive a real arm now