Agility Robotics · research humanoid
Cassie
An ostrich-like bipedal robot (legs and pelvis only, no torso or arms) that walks dynamically outdoors in rain and on rough ground; it was the base for Digit.
- Price
- $300,000Cheaper than 7%
- Height
- —Not published
- Weight
- —Not published
- Payload
- —Not published
- Speed
- —Not published
- Battery
- —Not published
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Why it matters
Later became the first bipedal robot to run 5 km (in about 53 minutes) using a learned running gait; included with a note because it is legs only.
Real-world use
Sold to university research labs.
Maker
Agility RoboticsCompany · founded 2015 · Salem, Oregon, United StatesPlanned SPAC merger with Churchill Capital Corp XI at about $2.5B, expected gross proceeds over $620M including a $200M PIPE led by Foxconn…
How it stacks up
Against other humanoids that publish the figure. Pick a measure.
Cassie costs less than 7% of the 85 other humanoids that publish a price. Bars show the 7 closest in date.
Not published by the maker: height, weight, speed, payload, joints, battery.
Public attention
A historic robot: no longer sold or in use, so it is not ranked against current humanoids.
- No Wikipedia article of its own yet
- 2 news stories from reputable press listed on this page
Measures how much people read and write about a robot, not how good it is. Measured 2026-10-13; same method for every robot. How it is measured
What’s inside
The parts the company has talked about publicly.
- Hands
- none
- Movement
- Walks on legs
- Chip
- NUC mini PC (Core i5/i7) (Intel)Caltech's Cassie documentation describes an onboard Intel NUC for customer research software.
- Actuators & motors
- Brushless DC motors with custom transmissions; 10 degrees of freedom (5 per leg) with a 3-DoF hip and powered ankles so it can stand still.
- Sensors & vision
- MEMS IMU plus absolute and incremental joint encoders.
- Compute
- Intel Atom real-time control computer, microcontroller boards in each limb, and a spare Intel NUC i5 for customer software.
- Battery & power
- 48 V, 20.5 Ah pack for about 5 hours of mixed use (about 100 W standing, 300 W walking).
- Materials & build
- Aluminium, thermoformed polycarbonate and carbon-fibre composite parts.
- AI & software
- MathWorks Simulink Real-Time on the control computer; customers can run any software on the secondary computer.
- Other details
- 115 cm tall, 31 kg, about 5 km/h. Designed to take falls without a safety gantry.
Lineage
Every Agility Robotics (Oregon State University spin-off) humanoid in order.
Watch Cassie
Made, sold and where
Unit counts are usually company figures; analysts often disagree.
- Price
- $300,000US$300,000, varying with application and quantity (undated)
- How to get one
- No official buying page found
- Sold or delivered
- Initial production run sold out at launch (IEEE Spectrum, Feb 2017).
- Where it is sold or used
- United States and research labs elsewhere
- Customers and pilots
- University of Michigan Dynamic Legged Locomotion Lab (among first units, 2017)
News
The latest 2, newest first. Summaries are ours; tap through for the original.
- Cassie achieves Guinness World Record in 100 meters
Cassie set the Guinness World Record for the fastest 100 m by a bipedal robot.
Oregon State University - Agility launches Cassie
The Oregon State spin-off introduced Cassie, with its first batch sold out to research labs.
IEEE Spectrum
Sources
Figures come from the maker. Every link below backs something on this page.
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