I don't get it, what is this, how is it different?

You choose a region. Then you pay for some compute size (vcpu and mem), and then you can create a lot of VMs using those limits. If some VM's don't consume all resources, others can consume it in burst.

VMs have a built-in gateway to cloud providers with a fixed url with no auth. You can top that in via the service itself. No need for your own keys.

So likely a good tool for managing AI agents. And "cloud" is a bit of a stretch, the service is very narrow.

The complete lack of more detailed description of the regions except city name makes it really only suitable for ephemeral/temporary deployments. We don't know what the datacenters are, what redundancy is in place, no backups or anything like that.

As I understand, a cloud provider where instead of paying for each VM (with a set of resources), you pay for the resources, and can get as many VMs as you can fit on these resources.