Comment by caleblloyd

The reason we are not seeing this in mainstream software may also be due to cost. Paying for tokens on every interaction means paying to use the app. Upfront development may actually be cheaper, but the incremental cost per interaction could cost much more in the long term, especially if the software is used frequently and has a long lifetime.

As the cost of tokens goes down, or commodity hardware can handle running models capable of driving these interactions, we may start to see these UIs emerge.