Ghost Robotics · robot dog
Spirit 40
A smaller Ghost Robotics quadruped from the Spirit series, used by research labs such as Carnegie Mellon's. Public specifications were not found.
- Price
- —Not published
- Height
- —Not published
- Weight
- —Not published
- Payload
- —Not published
- Speed
- —Not published
- Battery
- —Not published
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Why it matters
Spirit 40 is on the market today.
Real-world use
Research labs including Carnegie Mellon University's Robomechanics Lab
Maker
Ghost RoboticsCompany · founded 2015 · Philadelphia, Pennsylvania, United StatesValued at about $400M in the 2024 LIG Nex1 deal
Public attention
How much public attention Spirit 40 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 2026-10-13; same method for every robot. How it is measured
What’s inside
No component details published yet.
- Movement
- Walks on legs
- How it runs
- Assisted. Research labs steer it while it balances itself, and add their own autonomy software.
Lineage
Every Ghost Robotics machine in order.
Watch Spirit 40
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
- Where it is sold or used
- Philadelphia, Pennsylvania, United States
- Customers and pilots
- Research labs including Carnegie Mellon University's Robomechanics Lab
News
The latest 1, newest first. Summaries are ours; tap through for the original.
- LIG Nex1 buys 60% of Ghost Robotics
South Korea's LIG Nex1 agreed to buy a 60% stake in Ghost Robotics, maker of the Spirit and Vision quadrupeds, for $240 million.
Korea JoongAng Daily
Side by side with its peers
Picked by the same rules for every robot: another maker’s robot that moves the same way, is at the same stage and does at least one of the same main jobs, first shown within two years. Closer size and price rank higher. How we choose
| Measure | Spirit 40Ghost Robotics |  SpotBoston DynamicsSame job: inspection · Both walk · Both on sale or in pilots |  ANYmal DANYboticsSame job: inspection · Both walk · Both on sale or in pilots |  Spot Enterprise and Spot ArmBoston DynamicsSame job: inspection · Both walk · Both on sale or in pilots |
|---|---|---|---|---|
| First shown | 2020 | 2019-09 | 2021 | 2021-02-02 |
| Status | Commercial | Commercial | Commercial | Commercial |
| Height | — | 61 cm | 89 cm | — |
| Weight | — | 33.8 kg | 55.7 kg | — |
| Joints | — | — | 12 | — |
| Speed | — | 5.8 km/h | 4.7 km/h | — |
| Payload | — | 14 kg | 10 kg | — |
| Battery | — | 1.5 h | 2 h | — |
| Price | — | $74,500 | — | — |
Sources
Figures come from public sources. Every link below backs something on this page.
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