Caltech Center for Autonomous Systems and Technologies (CAST) · legged machine
LEONARDO
LEO
A 2.5 ft tall biped with three actuated joints per leg and four angled propeller thrusters at its shoulders; the propellers steady it while walking and can also lift it into flight. It featured on the cover of Science Robotics.
- Price
- —Not published
- Height
- 76 cmTaller than 32%
- Weight
- —Not published
- Payload
- —Not published
- Speed
- —Not published
- Battery
- —Not published
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Why it matters
A bipedal robot that uses propeller thrusters to balance while walking, letting it walk a slackline and ride a skateboard.
Real-world use
No customers or deployments reported yet.
Timeline
- Released
- Not yet
Maker
Caltech Center for Autonomous Systems and Technologies (CAST)University lab · Pasadena, California, United StatesHow it stacks up
Against other legged & novel that publish the figure. Pick a measure.
LEONARDO (LEO) is taller than 32% of the 22 other legged & novel that publish a height. Bars show the 7 closest in date.
Not published by the maker: weight, speed, payload, joints, battery, price.
Public attention
How much public attention LEONARDO (LEO) gets, from open data.
- No Wikipedia article of its own yet
- 1 news story from reputable press listed on this page
Measures how much people read and write about a robot, not how good it is. Measured 2026-10-14; same method for every robot. How it is measured
What’s inside
The parts the company has talked about publicly.
- Movement
- Walks on legs
- How it runs
- Assisted. Researchers commanded it while it balanced itself with its thrusters as it walked.
- Actuators & motors
- Two legs with three actuated joints each, plus four angled propeller thrusters at the shoulders
- AI & software
- Synchronised control of thrusters and leg joints; planned neural-network landing controller
- Other details
- About 2.5 ft (76 cm) tall; hybrid walking-flying locomotion lets it walk a slackline and ride a skateboard
From the maker
LEONARDO (LEO) is the only machine from Caltech Center for Autonomous Systems and Technologies in the atlas.
Watch LEONARDO (LEO)
Made, sold and where
Unit counts are usually company figures; analysts often disagree.
- Price
- Not published
- How to get one
- No official buying page found
- Built
- Research prototype
- Sold or delivered
- not sold
- Where it is sold or used
- Caltech CAST, Pasadena, United States
News
The latest 1, newest first. Summaries are ours; tap through for the original.
- Caltech's LEO walks, flies and skateboards
Caltech described LEO, a biped with propeller thrusters, published in Science Robotics.
Caltech
Sources
Figures come from a published paper. Every link below backs something on this page.
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