FWIW neither hoard nor ration imply anything about permanence of the thing to me. Whether you were rationed bread or you hoarded bread, the bread isn't going to be usable forever. At the same time whether you were rationed sugar or hoarded sugar, the sugar isn't going to expire (with good storage).
Rationed/hoarded do imply, to me, something different about how the quantity came to be though. Rationed being given or setting aside a fixed amount, hoarded being that you stockpiled/amassed it. Saying "you hoarded your rations" (whether they will expire) does feel more on the money than "you ration your rations" from that perspective.
I hope this doesn't come off too "well aktually", I've just been thinking about how I still realize different meanings/origins of common words later in life and the odd things that trigger me to think about it differently for the first time. A recent one for me was that "whoever" has the (fairly obvious) etymology of who+ever https://www.etymonline.com/word/whoever vs something like balloon, which has a comparatively more complex history https://www.etymonline.com/word/balloon
For me, the difference between ration and hoard is the uhh…rationality of the plan.
Rationing suggests a deliberate, calculated plan: we’ll eat this much at these particular times so our food lasts that long. Hoard seems more ad hoc and fear-driven: better keep yet another beat-up VGA cable, just in case.
Hoarding doesn't really imply how you got it, just that you stockpile once you do. I think you're bang on rationing - it's about assigning the fixed amount. The LLM provider does the rationing, the LLM user hoards their rations.
One could theoretically ration their rations out further... but that would require knowing the usage to the point to set the remaining fixed amounts - which is precisely whT's missing in the interface.
Rationing is precisely what we want to do: I have x usage this week; let me determine precisely how much I can use without going over. Hoarding implies a less reasoned path of “I never know when I might run out so I must use as little as possible, save as much as I can.” One can hoard gasoline but it still expires past a point.
As a pedantic note, I would say 'ration'. Things you hoard don't magically go away after some period of time.