"Whisper V2" is a bit of an exaggeration. It's
* only an update to the `large` model (and therefore irrelevant for hobbyist, low CPU use cases)
* architecturally identical to the original whisper model
* just trained on more epochs
* only an update to the `large` model (and therefore irrelevant for hobbyist, low CPU use cases)
* architecturally identical to the original whisper model
* just trained on more epochs
> The major version number is incremented when the number after the dot starts looking "too big." There is literally no other reason. [1]
This is maybe the most important thing there is for a lot of cases since additional training is the thing that is just about impossible to do for most people.