You are paying for nine agents, four of which are labelled prototypes on the fleet page rather than described as finished.
Those four produce real output and are used in real compliance work. What "prototype" means here is that their contracts can still change: the shape of what they write, the fields they expect, and the questions they ask are still settling as they meet more real management systems.
They are included rather than held back because a prototype you can use and argue with is worth more to you, and to us, than a roadmap entry. The alternative would be shipping them a year later with the same uncertainties and a more confident label.