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Til-vocab-morphbpe-96k-kkrumix-v1
Byte-level BPE tokenizer (96 000 vocab) for the Til Kazakh foundation-model program. Kazakh-priority, with Russian, English, code and math coverage.
Summary
- Vocab size: 96 000 (byte-level BPE,
tokenizers). - Priority: Kazakh-first; balanced kk/ru shares + en/code/math.
- Special tokens:
<pad>=0,<bos>=1,<eos>=2. - Built on: kaznu, from on-disk collected kk/ru (Til corpus exp053/054) + streamed en/code/math (FineWeb-Edu / code / math) — streaming avoids contention with the collectors.
Fertility (tokens/word, lower = better)
| Lang | Fertility | Note |
|---|---|---|
| kk | 1.699 | ✅ target < 2.0 |
| ru | 1.619 | marginal (aspirational < 1.6; +0.019) |
| en | 1.355 | ✅ |
Raising the Russian vocab share dropped ru fertility 1.718 → 1.619 (kk:ru mix tuning).
Usage
from tokenizers import Tokenizer
tok = Tokenizer.from_file("tokenizer.json")
ids = tok.encode("Сәлеметсіз бе, әлем!").ids
Part of the Til program
Companion corpora (same vocab): Til-corpus-tokenized-multi-morphbpe96k-mvp100b-v1 (kk, 8.4B), Til-corpus-tokenized-mix-morphbpe96k-v0 (ru/en/code/math, 12B), Til-corpus-tokenized-kk-extra-v0 (0.83B), Til-corpus-tokenized-kk-madlad-v0 (0.40B).
License: MIT.
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