placeholderlabs/pretrain-academic-mix

Normalized documents plus aligned Dolma-2 tokens and target masks. Size Tokens 67,177,671,409 (67.2B) Trainable tokens 67,177,671,409 (67.2B) Documents 11,031,348 Shards 531 UTF-8 bytes 301,588,326,802 Tokenizer allenai/dolma2-tokenizer@5292e5d6c0f4 documents.parquet - document_id, text, part_ends, part_trainable, must_not_split. The readable payload and the mask intent. metadata.parquet - one text-free row per document: token span, source, stratum… See the full description on the dataset page: https://huggingface.co/datasets/placeholderlabs/pretrain-academic-mix.