Ackren
Three formats, one engine
Format names the hardware floor, not the competence. This is not a capability ladder.
The names are printer’s sheet folds: folio is one fold, quarto two, octavo three. Any pack runs on any format, subject only to flash.
Folio
The full artefact at gigabyte scale, memory mapped, where storage is not the binding constraint.
Quarto
Roughly 200 MB against a card. The middle floor, and the one most embedded targets can actually meet.
Octavo
Sixteen megabytes, executed in place, no card at all, and a weaker guarantee said with the name.
Domain packs
Competence ships as a pack: authored, listed and checkable, gathered in Quire before it ships.
Inference cost here is effectively zero, so the pricing logic that justifies a model size ladder does not exist.