Built from Honda P3 units
The project used enhanced Honda P3 hardware as its first physical humanoid platform. [4][5]
AIST HRP-1
Specs, price & availability · verified Oct 2026
AIST HRP-1 is a 160 cm, 120 kg biped from National Institute of Advanced Industrial Science and Technology (AIST) (Japan), discontinued with no published price.
- Price
- Not disclosed
- Height
- 160 cm
- Weight
- 120 kg
- Total DoF
- 30
Last verified Oct 10, 2026
Price & availability
National Institute of Advanced Industrial Science and Technology (AIST) has not published a price
Discontinued
Current dataset status: Discontinued.
Product overview
About AIST HRP-1
HRP-1 was the first physical humanoid platform developed for Japan's five-year Humanoid Robotics Project, which began in 1998. The platform was completed during the project's first two-year phase and used enhanced Honda P3 hardware. AIST's contemporary comparison lists a height of 160 cm and a weight of 120 kg, with no waist joint and a backpack-mounted electronics system.
A developer-authored review gives 30 degrees of freedom: 2 in the head, 7 in each arm, 1 in each hand and 6 in each leg. This differs from the 130 kg and 28-DoF figures of the original Honda P3 that were previously attributed to HRP-1.
AIST later paired the hardware with its own controller as HRP-1S, enabling simultaneous arm-and-leg control for applications including teleoperation of industrial vehicles. The lighter HRP-2 replaced it as the project's final research platform.
Capabilities
Key features
Telecommand system
HRP-1 was integrated with the project's teleoperation cockpit and later with AIST's whole-body controller as HRP-1S. [5]
Hardware profile
Specifications
Official — stated by the manufacturer or organizerReported — stated by a credible third partyEstimated — derived or approximate
Body
Hands & Manipulation
- DoF per hand
- 1Reported — stated by a credible third party[5]
- Hand / end effector
- 1-DoF handsReported — stated by a credible third party[5]
Show unknown fields (11)
Mobility
- Maximum speed
- Not published
- Peak joint torque
- Not published
- Actuation
- Not published
Power
- Battery
- Not published
- Runtime
- Not published
- Charge time
- Not published
- Swappable battery
- Not published
Hands & Manipulation
- Payload
- Not published
Compute & Sensing
- Onboard compute
- Not published
- Sensors
- Not published
- AI stack
- Not published
Quick answers
AIST HRP-1 FAQ
Can you buy AIST HRP-1?
No general order page is verified. AIST HRP-1 is currently classified as discontinued. [4]
How tall is AIST HRP-1 and how much does it weigh?
AIST HRP-1 is 160 cm tall and weighs 120 kg (AIST comparison with the HRP-2 prototype; the previous 130 kg figure belongs to the Honda P3). [4]
How many degrees of freedom does AIST HRP-1 have?
AIST HRP-1 has 30 listed degrees of freedom; Developer-authored paper: 2 head, 7 per arm, 1 per hand and 6 per leg. [5]
Who makes AIST HRP-1?
AIST HRP-1 is made by National Institute of Advanced Industrial Science and Technology (AIST), based in Japan. [4]
What is the predecessor or successor of AIST HRP-1?
AIST HRP-2 is its successor. [4]
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Lineage
Model family
Evaluation footprint
Benchmarks & competitions
No benchmark embodiments or results reference this robot yet.
Related
Similar robots
Evidence
Sources
- [1]Humanoid Robotics Project - Wikipedia ↗Wikipedia · database · accessed Oct 8, 2026
- [2]HRP-2 - Wikipedia (HRP series comparison table) ↗Wikipedia · database · accessed Oct 8, 2026
- [3]File:HRP-1 front Science Museum Tokyo.jpg (Wikimedia Commons) ↗Wikimedia Commons · database · accessed Oct 8, 2026
- [4]AIST announcement of the HRP-2 prototype and comparison with HRP-1 ↗National Institute of Advanced Industrial Science and Technology · official · accessed Oct 8, 2026
- [5]Humanoid robotics platforms developed in HRP ↗Robotics and Autonomous Systems · paper · accessed Oct 8, 2026