the meta model is not public, probably for that reason, they just trained it with dirty data for research just to see the feasibility

Meta’s LLaMA model actually is publicly available; they released it widely to anyone with a .edu email address and of course it soon ended up on bittorrent. Here is the 🧲 link (which you can also hilariously still find in this pull request, despite the DMCA takedowns they’ve sent elsewhere about it).