Level 1 - Absolute Beginner
A Japanese company called ZEALS made a new robot. The robot's name is D1. It came out on August 5, 2026.
D1 is a humanoid robot. That means it looks and moves like a person. It is Japan's first humanoid robot that people can buy.
D1 is about 129 centimeters tall. It is not very wide. It can fit through doors and into elevators. It can move through small hospital hallways.
D1 costs about 5,000,000 yen. That is about $32,000. Each arm can carry 5 kilograms. The battery lasts up to 8 hours.
- humanoid
- shaped like a human, with a head, arms, and legs
- robot
- a machine that can move and do tasks on its own
- compact
- small and taking up little space
- battery
- a part that stores power for a machine to use
- hallway
- a long narrow passage inside a building
- elevator
- a machine that carries people up and down between floors
- obstacle
- something that blocks the way and must be avoided
- shortage
- not having enough of something that is needed
Level 2 - Elementary
On August 5, 2026, the Japanese AI company ZEALS launched a new robot called D1. It is described as Japan's first commercially available humanoid robot, meaning any business can now order one and start using it.
D1 stands about 129 centimeters tall and is 48 centimeters wide at its base. Engineers made it this size on purpose, so it can pass through standard Japanese doorframes, ride in normal elevators, and move through narrow corridors in hospitals and factories without needing any expensive changes to the building.
The robot can lift 5 kilograms with each arm, and its battery lasts up to 8 hours of use. D1 runs on ZEALS' own software, called Omakase OS. Sales and deployment consultations are now open for companies interested in using D1.
Before the launch, ZEALS tested the Omakase OS software using a Unitree G1 robot at University of Tsukuba Hospital. Over three nights, from 7pm to 9pm after regular outpatient hours ended, the robot walked on its own, avoided obstacles, helped people find their way by talking with them, and carried objects from place to place.
- commercially available
- able to be bought or ordered by businesses or the public
- deployment
- putting something into use in a real place or situation
- corridor
- a long passage in a building that connects rooms
- autonomous
- able to act on its own, without a person controlling every move
- outpatient
- a hospital patient who visits for treatment but does not stay overnight
- consultation
- a meeting to discuss and plan something before it happens
- infrastructure
- the basic buildings and systems, like doors or hallways, that a place already has
- software
- the programs that tell a computer or robot what to do
Level 3 - Intermediate
The Japanese AI company ZEALS launched D1 on August 5, 2026, describing it as Japan's first commercially available humanoid robot, one that has been certified through a hospital proof-of-concept rather than remaining a lab prototype. Priced at roughly 5,000,000 yen, about $32,000, D1 is now open for sales and deployment consultations with interested businesses.
What distinguishes D1 is its deliberately compact design. Standing about 129 centimeters tall and 48 centimeters wide at the base, it was engineered specifically to pass through standard Japanese doorframes, fit inside ordinary elevators, and navigate the narrow corridors typical of hospitals and factories, all without requiring any costly modifications to existing infrastructure. Each arm can lift 5 kilograms, and a single battery charge supports up to 8 hours of operation.
D1 runs on ZEALS' proprietary Omakase OS, the same software validated during a hospital proof-of-concept conducted with a Unitree G1 robot at University of Tsukuba Hospital. Over three consecutive nights, between 7pm and 9pm after outpatient hours had ended, the robot demonstrated autonomous walking, obstacle avoidance, conversational wayfinding to help people find their destinations, and object transport.
ZEALS frames D1 as a response to Japan's severe labor shortages across hospitals, factories, and other workplaces. The company's stated goal is to mass-produce 100 units within fiscal year 2026 and to accumulate a cumulative operating record of 10,000 hours, milestones intended to demonstrate the robot's reliability at scale rather than as a one-off demonstration.
- proof-of-concept
- a real world test used to show that an idea or design actually works
- proprietary
- owned and controlled by one company, not shared openly
- wayfinding
- the process of helping someone find their way to a location
- modification
- a change made to something, often to improve or adapt it
- scale
- a large size or amount, especially when producing many units
- milestone
- an important point or goal marking progress
- reliability
- the quality of working well and consistently over time
- certified
- officially confirmed as meeting a standard, usually through testing
Level 4 - Advanced
ZEALS, a Japanese AI company, launched D1 on August 5, 2026, positioning it as Japan's first commercially available humanoid robot and, notably, one validated not merely in a lab but through a hospital proof-of-concept. At approximately 5,000,000 yen, roughly $32,000, D1 is now open for sales and deployment consultations, a pricing and availability structure that signals ZEALS' intent to move beyond demonstration hardware toward genuine commercial adoption.
The robot's defining engineering constraint was compactness. Standing about 129 centimeters tall and 48 centimeters wide at its base, D1 was deliberately sized to traverse standard Japanese doorframes, fit within conventional elevators, and negotiate the narrow corridors characteristic of hospitals and factories, all without necessitating costly structural modifications to existing facilities. Each arm carries a 5 kilogram payload capacity, and a single charge sustains up to 8 hours of operation, specifications aimed squarely at practical, sustained workplace use rather than showcase performance.
Underpinning D1 is ZEALS' proprietary Omakase OS, whose real-world viability was established through a hospital proof-of-concept conducted with a Unitree G1 robot at University of Tsukuba Hospital. Across three consecutive nights, confined to the 7pm to 9pm window after outpatient hours concluded, the robot executed autonomous walking, obstacle avoidance, conversational wayfinding, and object transport, a modest but deliberately controlled testing window that nonetheless demonstrated core operational competencies in an active clinical environment.
ZEALS situates D1 within the broader context of Japan's acute labor shortages across hospitals, factories, and other sectors, with an explicit ambition to mass-produce 100 units within fiscal year 2026 and accumulate a cumulative operating record of 10,000 hours, benchmarks meant to substantiate reliability at scale rather than in a single demonstration. The photograph accompanying this article depicts a humanoid robot at Science Square Tsukuba, used as a representative regional image because no photograph of the D1 robot itself is yet available on Wikimedia Commons.
- adoption
- the act of starting to use something new, such as a technology
- payload
- the weight or load that a vehicle or machine is designed to carry
- viability
- the ability of something to work successfully in practice
- competency
- an ability or skill to do something effectively
- clinical
- relating to the direct treatment or observation of patients
- substantiate
- to provide evidence that supports or proves a claim
- constraint
- a limitation or restriction that shapes how something is designed
- structural
- relating to the basic framework or construction of a building
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