To get access to the models, first fill up the form here with the same mail id used to create huggingface account.
Link : https://ai.meta.com/resources/models-and-libraries/llama-downloads/
Huggingface Model card : https://huggingface.co/meta-llama
Dataset : https://huggingface.co/datasets/timdettmers/openassistant-guanaco