If you don't mind me asking: It seems like you can just run arbitrary stuff in a cloud instance for free using colab including GPUs. This doesn't sound a like a sustainable offering.

This sounds a lot like the old Google, which offered a lot of stuff for free but had to shut it down. Do you have any thoughts on that? Are there plans for a paid offering?

It sounds to me they want people to learn about deep learning and tensorflow. In the long term there will be more professionals and the salaries will go down. That is how they will make profit from this type of thing.

Unrelated, but since you're here: The animated background on that site seems completely unnecessary and uses a lot of resources - it makes my laptop's fans go crazy.

That is why Colaboratory offers the free GPU!