Stanford & Google DeepMind (design); Trossen Robotics (kits, USA) ALOHA 2 / Trossen AI Stationary (1)

Stanford & Google DeepMind (design); Trossen Robotics (kits, USA) ALOHA 2 / Trossen AI Stationary (2)

$23,995.95Current Trossen Stationary AI kit (4 WidowX AI arms, 4 RealSense D405 cameras, frame). The original ALOHA was built on a ~$20k budget; Trossen's ALOHA Stationary kits are now discontinued.

AvailablePython from a laptopBimanual teleopImitation learningOpen-source hardwareLeRobot / OpenPi

Weeks+Shipping: 2–3 weeks production. Ordered from Trossen Robotics in the US; average production time is 2–3 weeks before shipping. Table not included. Trossen ↗

Remote control: Everything runs from a Linux PC or laptop: ROS 2 and Python scripts record leader-arm demonstrations and run trained policies on the follower arms.

ALOHA 2 project ↗Original ALOHA ↗Trossen Stationary AI ↗

Overview

ALOHA (Stanford, 2023) showed that low-cost leader/follower arms plus imitation learning could thread zip ties and handle batteries; ALOHA 2 (Google DeepMind, 2024) improved grippers, ergonomics and robustness and open-sourced the design. Trossen sold the official kits, then rebranded the line as Trossen AI with its own WidowX AI arms. It is the reference setup for bimanual robot-learning research and many public datasets.

Specifications

Category	Robot arms · Research & collaborative arms
Released	2023
Availability	Available
Programmability	Open source (hardware + software)
Best for	Professionals & labs
Vision sensors	Camera, Depth camera
Actuators	Smart servos (Dynamixel, Feetech…)
Audio	No audio
Compute type	Laptop / PC as the brain
Remote control	Python from a laptop
DOF	4 arms × 6 DOF + grippers (2 leader, 2 follower)
Reach	700 mm per WidowX AI arm (Stationary AI); ViperX 300 S followers on ALOHA 2
Payload	1.5 kg per WidowX AI arm
Repeatability	1 mm
Weight	4 kg per WidowX AI arm
Controller	Host Linux PC/laptop (preloaded laptop with ALOHA kits); iNerve arm controllers on Trossen AI
Sensors	4× Intel RealSense D405 cameras (Stationary AI); joint feedback; gravity compensation on leader arms (ALOHA 2)
SDK	ALOHA codebase (ROS 2), MuJoCo model, Trossen arm SDK, Hugging Face LeRobot, OpenPi, Isaac, Gazebo