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DragonCode Tokenized Pretrain — Domain-Code Corpus
Pre-tokenized training corpus for the DragonCode LLM family. This is the domain-code-only dataset (not general web text).
Format
- 26 shards:
data/train-00000-of-00026.bin..train-00025-of-00026.bin - Flat
int32little-endian token-id stream (no headers, no row structure). Concatenate shards in order to reconstruct the full sequence. - 3,417,141,141 tokens total (~3.42B), ~13.67 GB on disk.
- Sequence length: 4096 (
MAX_SEQ_LEN) during training.
Sources (streaming, permissive only)
| Source | Field | License filter |
|---|---|---|
codeparrot/codeparrot-clean |
content |
permissive only (MIT/ISC/Apache-2.0/BSD/CC0/Unlicense/etc.) |
open-r1/codeforces-cots |
prompt / generation |
permissive only |
Non-permissive-licensed and empty samples are dropped. General web corpora (FineWeb-Edu / SlimPajama / The-Pile) are intentionally excluded per project spec.
Tokenizer
Uses the DragonCode tokenizer (see DragonLimited/DragonCode-150M). Encode with
add_special_tokens=False.
Note
The previous 5-shard legacy corpus (FineWeb-Edu-based) was fully replaced by this domain-code corpus on 2026-08-25.
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