Until employees can use those AI tokens for personal projects, it's not compensation. Rather, it's just a cost of doing business, like laptops, office space, or testing servers.
Do we think they're not using them for personal projects? It's called "testing." ;)
Does the code that their corp AI generated belong to them ?
I'd say it's a "don't ask, don't tell" situation.
Perhaps they monitor the sessions though and might wonder why someone is working reverse engineering a retro video game.