| --- |
| pretty_name: Tiny Base 300M English Pretraining Tokens |
| license: other |
| language: |
| - en |
| tags: |
| - pretraining |
| - tokenized |
| - english |
| - reproducibility |
| size_categories: |
| - 1B<n<10B |
| --- |
| |
| # Tiny Base 300M English Pretraining Tokens |
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| This repository provides reproducible packed-token corpora for the Tiny Base 300M, 2,048-context base-model experiments. It contains `uint16` token IDs, not raw source documents. |
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| ## Available corpus versions |
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| - Root-level files are the 50M-token pilot: 50,000,000 train tokens plus 1,000,000-token validation and test splits. |
| - `pretrain-312m-2k-1b/` is the production corpus: 1,000,000,000 train tokens plus 1,000,000-token validation and test splits. It is the corpus used by the ongoing 312M-parameter training run. |
|
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| Each version includes `train.bin`, `validation.bin`, `test.bin`, `tokenizer.json`, `manifest.json`, and `settings.json`. The binary files are little-endian `uint16` streams. Use the matching tokenizer and verify SHA-256 values in the manifest before training. |
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| ## Provenance and split policy |
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| Both versions use 70% FineWeb-Edu, 25% English Wikipedia, and 5% TinyStories. Their manifests pin the exact Hugging Face dataset revisions and FineWeb-Edu configuration. Documents are deterministically split by SHA-256 of normalized text modulo 1,000: 0–9 test, 10–19 validation, and 20–999 train. |
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| ## Terms and limitations |
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| This derived token dataset remains subject to upstream terms: FineWeb-Edu (ODC-By and Common Crawl terms), English Wikipedia (CC BY-SA 3.0/GFDL), and TinyStories (CDLA-Sharing-1.0). Users are responsible for applicable attribution and share-alike obligations. |
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| The corpus is English-first pretraining material, not a factual benchmark, safety filter, or curated knowledge base. It can retain bias, inaccuracies, and problematic material from public sources. |
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