[superamit]

100% agree.

The editing process is a lot harder to build around than the more straightforward "continue this text for me". Partially because the models are really suited to do the latter out of the box, and partially because there's more nuance and subjectivity on the latter and it's harder to make it work well today.

That said, totally doable. (We put most of our effort into AI for human editing and control with Sudowrite.)