with both you and GP, I would imagine the answer is that people tend to build models to the hardware that is available. If 12GB and 24GB are the hardware thres

with both you and GP, I would imagine the answer is that people tend to build models to the hardware that is available. If 12GB and 24GB are the hardware thresholds that people have, you'll get "open-source action" in the 12GB and 24GB models, because people want to build things that run on the hardware they own. (Which is of course how CUDA built its success more generally, vs the "you have to buy the $5k workstation card to get started" strategy from ROCm.) More generally you'd call this optimization and targeting the hardware that's available. No sense releasing crysis when everyone is running a commodore 64, after all.