The largest LLaMA model at ~60 billion parameters is not quite as large as ChatGPT 3 in size, and probably not quite as well trained, but it's basically in the

The largest LLaMA model at ~60 billion parameters is not quite as large as ChatGPT 3 in size, and probably not quite as well trained, but it's basically in the same class. Even the complete, not quantitized model, can be run with llama.cpp on ARM64 and x86_64 CPUs already, assuming you have enough RAM (128 GB?).