(strictly, only 6.05.04-nightly as 6.05.03 does not show check boxes - see DATA-2475)
Arcanist has a reservoir = Int + Level capacity, and regains Int+Level/2 each day
The text for Arcane Reservoir shows this.
When I export to PDF, it shows 4 boxes (the daily re-gain), not 5 (capacity).
pathfinder core + ACG
Doesn't look like anyone is using INT + Level Capacity. Need to consult the rule book....
The arcanist's arcane reservoir can hold a maximum amount of magical energy equal to 3 + the arcanist's level. Each day, when preparing spells, the arcanist's arcane reservoir fills with raw magical energy, gaining a number of points equal to 3 + 1/2 her arcanist level.