Kokoro is the quick one. It’s small enough to start almost instantly and fast enough that a long paragraph is ready before you’ve finished reading it back.
Voices
Kokoro has 54 preset voices. Avocado groups them by language in the voice picker, best-rated first, with a note such as “Female · Best”, and you can audition any of them in its own language from the Voice Library.
Mix a voice
On Create Voice, choose Mix, pick two to four of Kokoro’s voices and set how much of each goes in. The first voice sets the language; the others lend their character. Audition the mix, save it, and it appears under Your voices.
Pace
A Pace control slows a voice to half speed or speeds it up to double. The pace is saved with each take.
Speed
Measured on an M3 Max with the model loaded, the first sound of a one-sentence take plays in 0.16 to 0.21 seconds, and a 42-second paragraph is finished in 0.7 to 0.9 seconds.
Licence
Kokoro’s licence is set by its maker. Read it on the Kokoro model page before you publish anything you make.