Both Petit and Nana's V4's are distributed by AH-Software. Petit received an additional update to the Vocaloid 4 engine, along side Nana. Petit later received an update that allowed compatibility with the Utau engine. She was originally called 'Macne Nana Petit' and 'Chibi Nana' and was a compact/cheaper alternative to Nana's original bank. The concept and point of their voices was to be compatible for the Macintosh operating system. Petit is a vocal initially created for GarageBand, along side Nana, by MI7 Japan.