Hybrid hydraulic and electric limbs
The legs and torso are hydraulic, while the arms and pelvis are electric. IEEE Spectrum calls the design a hybrid of electric and hydraulic actuators. [1]
Price & availability
IHMC (Florida Institute for Human and Machine Cognition) has not published a price
Discontinued
Current dataset status: Discontinued.
Product overview
About IHMC Nadia
Nadia is a full-size research humanoid built by IHMC, the Florida Institute for Human and Machine Cognition, a nonprofit research institute based in Pensacola, Florida. IEEE Spectrum described it in October 2022 as a hybrid design, with hydraulic legs and torso and electric arms and pelvis. IHMC's current robot-design page gives 29 joints; IEEE reported a weight of about 90 kg without the hydraulic pump or battery.
Nadia was first shown as plastic concepts in 2019, and IHMC then built a physical unit after 16 experimental plastic versions. Its design was shaped partly by IHMC's experience at the DARPA Robotics Challenge. IHMC aimed it at human-speed work in unstructured places, with heavy use of virtual-reality teleoperation. In 2022 it was tethered to off-board power, and IHMC planned to add batteries and a hydraulic pump in the torso.
IHMC now labels Nadia a legacy platform. Its successor, Alex, was introduced on 20 November 2025, and Local Pulse describes it as a human-avatar first responder for disaster situations. Nadia's height, runtime and sensor set were not published in the sources reviewed, and no price or sales route was found, so it is listed as discontinued.
Capabilities
Key features
Tethered in 2022
In 2022 the robot was tethered to off-board power. IHMC planned to add batteries and a custom hydraulic pump in the torso. [1]
Built after plastic concepts
The robot began as plastic concepts shown in 2019 and reached a physical unit after 16 experimental plastic versions. [1]
Successor: Alex
IHMC introduced the Alex robot on 20 November 2025. Local Pulse describes it as building on the design work done on Nadia and as a first-responder avatar for disasters. [2][3]
Hardware profile
Specifications
Official — stated by the manufacturer or organizerReported — stated by a credible third partyEstimated — derived or approximate
Body
- Weight
- 90 kgReported — stated by a credible third party[1]Without hydraulic pump or battery, per IEEE Spectrum (2022)
Mobility
Show unknown fields (13)
Body
- Height
- Not published
Mobility
- Maximum speed
- Not published
- Peak joint torque
- Not published
Power
- Battery
- Not published
- Runtime
- Not published
- Charge time
- Not published
- Swappable battery
- Not published
Hands & Manipulation
- DoF per hand
- Not published
- Payload
- Not published
- Hand / end effector
- Not published
Compute & Sensing
- Onboard compute
- Not published
- Sensors
- Not published
- AI stack
- Not published
Quick answers
IHMC Nadia FAQ
Can you buy IHMC Nadia?
No general order page is verified. IHMC Nadia is currently classified as discontinued. [4]
How many degrees of freedom does IHMC Nadia have?
IHMC Nadia has 29 listed degrees of freedom; IHMC's robot-design page gives 29 joints; IEEE's breakdown (7 DoF per arm, 3 pelvis, 2 torso, 5 per leg) also totals 29. [4][1]
Who makes IHMC Nadia?
IHMC Nadia is made by IHMC (Florida Institute for Human and Machine Cognition), based in United States. [4]
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Evaluation footprint
Benchmarks & competitions
No benchmark embodiments or results reference this robot yet.
Related
Similar robots
Evidence
Sources
- [1]IHMC's Nadia Is a Versatile Humanoid Teammate ↗IEEE Spectrum · press · accessed Oct 10, 2026
- [2]Alex the robot is taking IHMC innovation to new heights ↗Yahoo Tech · press · accessed Oct 8, 2026
- [3]Meet Alex, IHMC's next-generation humanoid robot ↗Local Pulse · press · accessed Oct 8, 2026
- [4]IHMC humanoid robot design ↗IHMC Robotics · official · accessed Oct 10, 2026