data/openwebtext/readme.md

## openwebtext dataset

after running `prepare.py` (preprocess) we get:

- train.bin is ~17GB, val.bin ~8.5MB
- train has ~9B tokens (9,035,582,198)
- val has ~4M tokens (4,434,897)

this came from 8,013,769 documents in total.

references:

- OpenAI's WebText dataset is discussed in [GPT-2 paper](https://d4mucfpksywv.cloudfront.net/better-language-models/language_models_are_unsupervised_multitask_learners.pdf)
- [OpenWebText](https://skylion007.github.io/OpenWebTextCorpus/) dataset