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Product profile

ATRIAS

ATRIAS was a series of human-scale bipedal research robots developed by Oregon State University’s Dynamic Robotics Laboratory to study efficient walking, r...

Facts

Company
Agility Robotics
Product type
research_platform
Status
historical
Primary capability
bipedal locomotion research
Website
https://films.oregonstate.edu/atrias

About ATRIAS

ATRIAS was a series of human-scale bipedal research robots built by Oregon State University’s Dynamic Robotics Laboratory. Its lightweight legs, series-elastic actuators and concentrated torso mass mechanically reproduced the spring-loaded inverted-pendulum dynamics observed in human and animal locomotion. Onboard batteries and computing supported untethered walking and running experiments.

The platform was used to test controllers for efficient gait, balance, disturbance recovery and movement across natural terrain. ATRIAS became the laboratory predecessor to Cassie and helped establish technology later commercialised through the Oregon State spinout Agility Robotics. The programme is historical research hardware and is no longer a current Agility Robotics commercial product.

Market context

true, research_platform, 2026-05-22, research, legacy_bipedal_locomotion_platform, https://films.oregonstate.edu/atrias, Oregon State University Dynamic Robotics Laboratory, products/gap-fill-2026-05-22-batch-02/atrias.png, Agility Robotics, official_source_crop

Summary

Type: Research platform

Core: Biped dynamics

Function: Locomotion

Audience: Researchers

Specifications

Actuation
Series elastic actuation (legged locomotion research focus)
commercial_status
research_platform
Degrees of freedom
~10–12 (varies by revision)
deployment_model
research
height_cm
~150 cm cm
mobility_class
biped
operating_environment
indoor_structured
platform_role
legacy_bipedal_locomotion_platform
platform_type
research_platform
Power source
Tethered / offboard (primarily lab use)
weight_kg
~65 kg kg

Operations

Environment
indoor_structured
Primary user
researcher, developer
Role
research_development
Interaction model
developer_platform
Mobility class
biped
Product detail
true, research_platform, 2026-05-22, research, legacy_bipedal_locomotion_platform, https://films.oregonstate.edu/atrias, Oregon State University Dynamic Robotics Laboratory, products/gap-fill-2026-05-22-batch-02/atrias.png, Agility Robotics, official_source_crop

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