It's unclear. I've heard people get the V100 without Colab Pro. Albeit I do use Colab Pro and get a V100 almost each time.
As an aside, if you do get a V100, Colab Pro is by-far the cheapest way to train an AI model. ($10/mo is much, much cheaper than $2.48+/hr on GCP normally!) Although you need to sync checkpoints to off-loaded storage in case the Notebook dies.
> As an aside, if you do get a V100, Colab Pro is by-far the cheapest way to train an AI model.
But others should be aware that you get what you pay for. Google still rate limited me when I used Colab Pro, and I ran into a myriad of other small problems. If that's all one is willing to spend to play with AI, 100% go for it. It's a great place to start. But if you're at all serious and can afford it, I think a local machine with a modest GPU is worth every penny.
These raw numbers don't tell the whole story, of course. But IMHO, the convenience of a local 2080Ti outweighs the speed benefits of an _somewhat flaky_ V100 via Colab for day-to-day use (unless memory size is an issue, which you can't really get around).
OTOH, for just trying out stuff / one-offs, Colab is perfect - and bonus points if you score a V100.