Hi! I'm a co-author on the paper (Mark Dredze).

The arxiv paper is written for researchers who are building these models. We benefited tremendously from reading papers on GPT-3, PaLM, Chinchilla, Galactica, Gopher, Bloom, OPT, most of which are closed models. We are contributing back to that community, and the collective experience of people who are training these models. We learned a lot that will help others who are making their own decisions about how to train models.

If you are looking for an API to use, this isn't for you.