People that run 7B 4bit is probably because they don't have the memory for more. And there are tests showing that quantizing a bigger model is always better tha

People that run 7B 4bit is probably because they don't have the memory for more. And there are tests showing that quantizing a bigger model is always better than running a smaller model full precision (i.e LlaMa 13B 4bit > 7B fp16)