Osaka University · research humanoid
CB2
Child-robot with Biomimetic Body
A child-sized android modelled on a two-year-old, with soft silicone skin, tactile sensors and flexible actuators, used to study how robots might learn and develop like infants.
- Price
- —Not published
- Height
- 130 cmTaller than 19%
- Weight
- 33 kgHeavier than 18%
- Payload
- —Not published
- Speed
- —Not published
- Battery
- —Not published
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Why it matters
A retired humanoid from Osaka University.
Real-world use
No customers or deployments reported yet.
Timeline
- First shown
- 2006
- Released
- Not yet
Maker
Osaka UniversityUniversity lab · Suita, Osaka, JapanUniversity research lab; ERICA was developed within the JST ERATO Ishiguro Symbiotic Human-Robot Interaction Project.
How it stacks up
Against other humanoids that publish the figure. Pick a measure.
CB2 (Child-robot with Biomimetic Body) is taller than 19% of the 305 other humanoids that publish a height. Bars show the 7 closest in date.
CB2 (Child-robot with Biomimetic Body) is heavier than 18% of the 277 other humanoids that publish a weight. Bars show the 7 closest in date.
Not published by the maker: speed, payload, joints, battery, price.
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
- 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
- Actuators & motors
- 51 pneumatic actuators for the body plus 5 DC motors for the eyeballs and eyelids; 63 DoF in total (eyes 5 x 2, eyebrows 2, cheeks 2, mouth 5, neck 4, arms and hands 11 x 2, legs 7 x 2, waist 4).
- Hands
- Arm-and-hand chains of 11 DoF each, air-driven; no separate hand spec published.
- Sensors & vision
- Two cameras in the eyes, two microphones in the ears, and 197 tactile sensors under the soft skin.
- Compute
- Off-board Linux cluster handling actuator control, image and sound processing and touch data.
- Battery & power
- Tethered: external power supply and air compressor.
- Materials & build
- Plastic skull, metal skeleton, urethane foam and soft silicone-type skin; 130 cm, 33 kg.
- AI & software
- Research software for developmental learning; it could imitate facial expressions and make baby-like movements.
- Other details
- Modelled on a roughly two-year-old child; could stand up only with human help. Built in the JST ERATO Asada Synergistic Intelligence Project (Minato, Yoshikawa, Noda, Ikemoto, Ishiguro, Asada).
Named suppliers:Arm Holdings
Lineage
Every Osaka University humanoid in order.
DB (Dynamic Brain)2000Retired
Robovie2001Retired
Actroid (Repliee Q1)2003Retired- No public photo yetWe only show photos we're allowed to useCB2 (Child-robot with Biomimetic Body)2006Retired
Geminoid HI-12006Retired
Geminoid F2010Retired- No public photo yetWe only show photos we're allowed to usePneuborn2011Retired
ERICA2015Research- No public photo yetWe only show photos we're allowed to useAlter 32019Research
Watch CB2 (Child-robot with Biomimetic Body)
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
- Not stated (research prototype)
- Sold or delivered
- Not sold; research robot
- Where it is sold or used
- Osaka University, Japan
News
The latest 1, newest first. Summaries are ours; tap through for the original.
- CB2 design presented at IEEE Humanoids 2007
Minato, Yoshikawa, Noda, Ikemoto, Ishiguro and Asada presented CB2 as a child robot for cognitive developmental robotics.
Crossref (IEEE record)
Side by side with its peers
Picked by the same rules for every humanoid: 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 | No public photo yetWe only show photos we're allowed to useCB2 (Child-robot with Biomimetic Body)Osaka University |  REEM-APAL RoboticsSame job: research · Both walk · Both past robots · Similar size |  Rh-1Universidad Carlos III de Madrid (RoboticsLab)Same job: research · Both walk · Both past robots · Similar size |  KojiroUniversity of Tokyo JSK LabSame job: research · Both walk · Both past robots · Similar size |
|---|---|---|---|---|
| First shown | 2006 | 2005 | 2007 | 2007 |
| Status | Retired | Retired | Retired | Retired |
| Height | 130 cm | 140 cm | 130 cm | 135 cm |
| Weight | 33 kg | 49 kg | 50 kg | 45 kg |
| Joints | — | 30 | 21 | — |
| Speed | — | 1.5 km/h | — | — |
| Payload | — | 2 kg | — | — |
| Battery | — | 1.5 h | 0.5 h | — |
| Price | — | — | — | — |
Sources
Figures come from press coverage. Every link below backs something on this page.
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