He has performed at live concerts onstage as an animated projection along with Crypton's other Voice Synth characters.

The product's name was invited to be chosen by the public, and "Kaito" was selected from among the applicants, which was Vocaloid producer Shu-tP's offered idea.

[2][3] One of the reasons why his name "Kaito" was selected was because it would be easy for non-Japanese speakers to pronounce, and it looked fitting with the name Meiko when they were put next to one another.

A beta version of the vocals was used in Hatsune Miku and Future Stars: Project Mirai.

[6] Once imported into the engine, the 3 Japanese vocals can access the Vocaloid 4 function Cross-Synthesis (XSY).

In 2019, during Hatsune Miku Magical Mirai 2019, Crypton announced their departure from Vocaloid to focus on the development of their own voice synthesis engine, Piapro Studio NT.

[citation needed] At the height of his sales, he was the only one of the two Vocaloid engine vocals to have a consistent ranking as one of the Crypton's Top Ten Products.

In April 2013, Crypton updated its music software sales page and the data showed that Kaito V3 was the best-selling product in March of that year.

[citation needed] The image on the box art of the original Kaito package was not meant to be a personification of the vocal, as would be the case with later Vocaloid products.