"RomeGPT" is next on my list of Monad successors and to give you a general idea, we have on the order of tens of millions of words in classical Latin (and biggest source will… Augustine). There was a BERT Latin project that was able to collect roughly 500 million words in all with mostly early modern and modern Latin.
In comparison I'm currently part of a project to pretrain a French model and we need… 140 billion words.
* I'm not talking about Roman-era Latin, Latin was the scholarly/international language for Europe for a long long time. AFAIK, most European Latin literature is untranslated...
It's hard to believe that a comparable amount of text had been created, even across all languages, in the entire history of humanity up to the 17th century.
https://huggingface.co/datasets/roneneldan/TinyStories
Also note
https://arxiv.org/abs/2309.05463 (which is larger - obviously size still does contribute to performance)