AI is really just a language model.
Perfectly capable of identifying nice POI's - really, that's an amazing use for it. However they cannot generate routes at all.
Well, they "can" as they "understand" the general perception of latitude and longitude. So a route they make will be a GPX of all lat lng of those POI's added together.
Because an AI has no clue at all about highways, general routing or other factors why we use a routeplanner, there is no fun at all.
How does it become interesting?
Use AI to parse user requirements into a list of POI's
Feed those to our scenic routing server
Show the scenic route to the user with waypoints at each of the POI's