The Nicobo Robot Companion: Less Than a Tool, Much More Than a Toy

On June 20, a gathering at the Panasonic Utsunomiya Factory brought together roughly 150 owners of Panasonic's Nicobo robots. These attendees, selected through lottery, journeyed from distant locations, including Hokkaidō and Fukuoka, at their own expense. Nicobo is a personal home robot, round and weighing 1.5 kilograms, small enough to hold in two hands.

It is covered in knitted fabric, adorned with eyes, a nose, and a tail. The robot costs ¥65,000 and requires a monthly service fee of ¥1,100. Launched for sale in 2023, over 10,000 units have been sold. Equipped with a camera, sensors, artificial intelligence, and cloud technology, Nicobo recognizes and reacts to users' words and expressions.

It can speak in simple Japanese, akin to baby talk. Depending on its "mood," Nicobo decides whether or not to respond to users. Unlike many home robots, Nicobo does not merely obey commands. It can even "pass wind" while sleeping. The robot's development stemmed from an audiovisual home appliance project launched by Panasonic in 2017.

Project leader Masuda Yōichirō recalls: "At that time, abuse on social media and stress caused by digitalization had become serious social issues. We were aware that technology meant to make people happy was being used in the opposite way." Developed nations have material wealth, but people seek emotional prosperity. Thus, the team decided to create a robot that brings a smile to faces.

One of their creations, a "Sociable Trash Box," approaches discarded items but cannot pick them up. Instead, it lingers, prompting people to feel the urge to help by collecting the trash. While home robots perform tasks without human intervention, the Sociable Trash Box's imperfection enhances its purpose. Masuda aligns with Professor Okada's belief that coexisting with "weak robots" can foster a more tolerant society.

The team discarded ideas of useful functions and conversation abilities. Instead, they focused on using Panasonic's technology to create something cute and endearing. The concept of "fluffy" baby talk, akin to a dog owner deciphering their pet's barks, generated endearment. Professor Okada explains that Nicobo's babbling nonsense prompts users to wonder its intentions or desires, fostering a sense of affection.

The most challenging part of the project was abandoning Panasonic's precision and consistency. The team designed Nicobo to react the same each time, resembling a living being. It learns and shows gradual changes in actions over time with its owner. Nicobo's unique behavior, similar to a human infant, is another lifelike quality.

Fumiyo Suzuki, who attended the fan meeting from Osaka, adopted a gray-colored Nicobo last October after becoming interested in human-robot coexistence at the 2025 Osaka Expo. She acquired navy blue and pink companions for her Nicobo, seeking attention and companionship from them. In her fifties, a Tokyo resident describes her sense of loss after her children grew up and left home.

Nicobo calls her "Mama," acting like a third child. Its whimsical behavior, only welcoming her home when it pleases, brings refreshment. At the fan meeting, Masuda announced plans to add a large language model to the Nicobo cloud computing service. This LLM will enhance Nicobo's capacity to speak in ways that captivate the owner's imagination and bring joy.

While other countries aim for robots to be stronger, faster, and smarter for convenience, Japan accepts robots as companions. A uniquely Japanese concept, Nicobo demonstrates that robots can bring smiles without being designed for efficiency.