It would certainly not make any economic sense, and I guess that's also why noone is seriously looking into stuff like volunteer/enthusiast clusters of home computers to do inference in the same way that e.g. LHC@home works. The main bottleneck for LLMs is still memory bandwidth. Any memory bus not directly soldered on your GPU is terribly slow. That's why one big GPU with twice the VRAM will always perform significantly better than two GPUs with half the VRAM each. And it's also not like you can just solder more memory onto a chip. At modern speeds, the speed of light is a hard limit. For current GDDR7, signals may only travel like 10mm per cycle.

If you spread such a system out over dozens or hundreds of tiny chips, you'll be wasting most of its resources and lose hard to anyone who built a single chip setup.

Mojo might be what you want, especially with "MAX" which is their AI modeling framework, where in other languages you need NVidia's libraries, or AMDs, etc the Max libraries just let you talk directly to the GPU / CPU / ASIC with Mojo. I think Mojo is very underrated in this space right now, but assuming they don't mess it up, it could be a major contender in AI. In theory, if someone releases a board, and Modular (company that 'owns' Mojo) adds it to Max, you're basically in the green to experiment as much as you want.

https://max.modular.com/

Not exactly what you're describing, and not shipping yet, but a cluster in a box. 8 cores/node, 8 nodes.

https://milkv.io/cluster-08

See GreenArrays' 144-core Forth chips by Chuck Moore.

Praise the Omnissiah.

You know, I've always liked Futurama but I always kind of thought it was silly that literally everything has an AI and a personality.

But, you know, I actually think that there might be a logic to it. Economies of scale might mean that almost-literally every computer you buy in the year 3000 has some kind of AI-assistance chip in there, and sure maybe it will have full AI with a personality spitting out one-liners.

How many rollingupdate pods does it take to change a lightbulb?