While we can't be sure of most of those answers, they have stated it is running in Azure. Also we can probably assume the pricing is likely to be somewhat in p

While we can't be sure of most of those answers, they have stated it is running in Azure. Also we can probably assume the pricing is likely to be somewhat in proportion to the cost to run (possibly subsidised to gain market, but they are unlikely to be taking a giant/unsustainable loss per query here, particularly as they seem to announce price decreases when they increase model performance).