Where are Gold Boxes from from?

...yes.
Are they going to give us Gach Boxes and not have the keys work on them?
And what would be the point of making 700 nx more than a Silver Box if Gold Boxes had the same things?
Gold Boxes give: Timeless, Von Leon, Bloody, and Rising Sun equips (along with a bunch of other pomegranate)
Silver Boxes give: Reverse, Walker, and Crescent Moon equips (along with the same or slightly worse pomegranate)

What I am trying to ask is if the gold keys work on both of the type of gacha boxes:

Gold boxes

Premium Gold boxes

The reason i ask is because gold boxes are the only ones dropping no?