I upgraded the llm-gpt4all plugin to support running Llama 3 8B Instruct (thanks, Nomic AI):

llm install --upgrade llm-gpt4all  
llm -m Meta-Llama-3-8B-Instruct 'Write Python code to print 5 great names for a pet pelican'  

The quantized model is a 4.34GB download and should run on machine with 8GB RAM - works great on my M2 MacBook Pro

<https:github.com/simonw/llm-gpt4all/releases/tag/0.4>