> It always felt as though we already figured out how to break up large files and parse them efficiently with very little memory.

The A in 26B-A4B is the active weights.

The problem is that this is a per-token load/unload at best, not for the whole prompt.

The division happened until one of these can fit in a single GPU and they stopped scaling it down any more, because you can wire up 8 of them to do their share of the work.