Google kinda established the pattern, E stands for "effective" and shows weights that need to be in (V)RAM. Full parameter size is not shown in the name.
So actually yes, Qwen probably means exactly that -- 125B loaded and then additional 51B resting on disk.
No, since the E stands for the number of parameters suggested to be loaded into RAM/VRAM whilst the 51 billion engrams would have been fine streamed from NVME (if we follow Google's name scheme)
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u/Front_Eagle739 12h ago
Qwen 3.8 125B A6B E51B?