data/metadata.json

{
  "input_dir": "/home/lamcodealong/fineweb_10bt/sample/10BT",
  "seq_len": 2048,
  "vocab_size": 272,
  "dtype": "uint16",
  "total_samples": 9672101,
  "total_tokens": 17268243758,
  "token_format": "BOS + UTF-8 bytes + EOS (byte-level, 272 vocab)"
}