I don't think Vast.ai does "shared GPUs", you can only rent full rigs, at least there is no indication the hardware is shared between multiple users at the same time.
But I think services like Runpod and similar lets you rent "1/6 of a GPU per hour" for example, which would be "shared hosting" basically, as there would be multiple users using the same hardware at the same time.
But I think services like Runpod and similar lets you rent "1/6 of a GPU per hour" for example, which would be "shared hosting" basically, as there would be multiple users using the same hardware at the same time.