Board Thread:Questions and Answers/@comment-74.179.161.153-20160224190426/@comment-26858522-20160514011144

The only thing for Vocaloids (That I know of) age wise really is just whatever your imagination takes you to.

The most popular ones honestly are like...

I think Kaito, Luka, and Meiko being the oldest three, then making Miku younger, and Rin and Len the youngest. I think Rin is supposed to be a slight bit older than Len, as in a few songs.

But again, none have specific ages.