placeholderlabs/pretrain-commits-v2-mix-long-context

Normalized documents plus aligned Dolma-2 tokens and target masks. Size Tokens 12,571,681,749 (12.6B) Trainable tokens 4,460,160,435 (4.5B) Documents 992,475 Shards 327 UTF-8 bytes 49,288,867,997 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, sizes… See the full description on the dataset page: https://huggingface.co/datasets/placeholderlabs/pretrain-commits-v2-mix-long-context.

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