Stability AI Releases Stable Animation SDK

At the risk of repeating classic HN Dropbox hubris... this just looks like what Automatic1111 + ControlNet is already doing.

The classic Dropbox hubris also told us how to use the alt mentioned tools! :P

How do these work together in hubris world? I'm always up for a bit of tinkering. I'll figure it out later either way but a head start never hurts

Was Stable Diffusion XL model ever released?

When I hear animation I think of 3D character rigging in a 3D engine with animations. This seems to be text-to-video?

Did I get this right that this is just a paid API release - no public code/model available?