Stanford University ALOHA 2 / Trossen AI Stationary price & specs

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)

$23,995.95

AvailablePython from a laptopBimanual teleopImitation learningOpen-source hardwareLeRobot / OpenPi

Weeks+Shipping: 2–3 weeks production.

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.

LEARN MORE (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.

Type: Robot arm · Research & collaborative arms
Maker: Stanford & Google DeepMind (design), Trossen Robotics (kits, USA)
Released: 2023
Price: $23,995.95
Status: Available
Best for: Professionals & labs
Programming: Open source (hardware + software)

Price and shipping

Current 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.

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 ↗

Specifications

Category	Robot arms · Research & collaborative arms
Released	2023
Country	USA
Availability	Available
Programmability	Open source (hardware + software)
Built-in autonomy	None / scripted · Moves only when controlled, or plays preset motions
LLM support	Official LLM tools · Trossen maintains an OpenPI fork and tutorials for running the language-conditioned pi0 and pi0.5 VLA models on its kits. Trossen Robotics blog (OpenPI integration) ↗
MuJoCo simulation	Official model · In MuJoCo Menagerie (aloha), Trossen also publishes Stationary AI MJCF. MuJoCo Menagerie ↗
NVIDIA Isaac simulation	Official model · Trossen's trossen_ai_isaac provides Stationary AI USD models and Isaac Lab tasks. trossen_ai_isaac ↗
Gazebo simulation	Maker URDF only · Trossen publishes arm URDFs, no Gazebo launch files found. trossen_arm_description ↗
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

Common questions

How much does ALOHA 2 / Trossen AI Stationary cost?

ALOHA 2 / Trossen AI Stationary is listed at $23,995.95. Current 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.

Can ALOHA 2 / Trossen AI Stationary be bought today?

Yes, it is on sale. Typical shipping time is 2–3 weeks production. Ordered from Trossen Robotics in the US. Average production time is 2–3 weeks before shipping. Table not included.