Hatsune Miku
Hatsune Miku was the first Vocaloid developed by Crypton Future Media after they handled the release of the Yamaha vocal Meiko and Kaito. The name of "Hatsune Miku" was conceived soon after the Vocaloid 2 announcements, when an English and Japanese vocal were developed for the character. The intended design was delayed and later used for Megurine Luka instead. Miku was intended to be the first of a series of Vocaloids called the ""Character Vocal Series"", which included Kagamine Rin/Len and Megurine Luka. Each had a particular concept and vocal direction.
Megpoid
By 2010, Gumi's popularity was on par with Crypton Future Media's Vocaloids and had out sold her predecessor Camui Gackpo, becoming the most popular and well known non-Crypton Vocaloid. In 2011, her usage grew and in a number of weeks she would have even more songs in the top 100 rankings than some of the Crypton Future Media vocalists. In January 2015, a popularity poll was released, confirming Gumi was the second most popular Vocaloid of 2015 on Niconico.