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mattashiho/
dango-1.8b-100Btok

Name: dango-1.8b-100Btok
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Dango🍡

Dango is a large language model (LLM) trained on an extensively filtered Japanese corpus.
It is intended primarily for research on second language acquisition, but it can also be used as a Japanese speaker simulator.

We release the checkpoint trained on 100B tokens in this repository.

Model Details

Dango is architecturally comparable to the llm-jp-3 family, which adopts a Llama 2-style decoder architecture.

llm-jp-3-1.8b: https://huggingface.co/llm-jp/llm-jp-3-1.8b

Please visit our github page for filtering and training codes: https://github.com/mattashiho233/dango

License

Codes and Scripts: CC BY 4.0
Pre-trained models: CC BY 4.0
Instruction-tuned models (after L2 acquisition training): Trained with Ichikara instruction data, which prohibits commercial use of derivative models
- Ichikara data source: https://liat-aip.sakura.ne.jp/wp/llm%e3%81%ae%e3%81%9f%e3%82%81%e3%81%ae%e6%97%a5%e6%9c%ac%e8%aa%9e%e3%82%a4%e3%83%b3%e3%82%b9%e3%83%88%e3%83%a9%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e3%83%87%e3%83%bc%e3%82%bf%e4%bd%9c%e6%88%90/llm%e3%81%ae%e3%81%9f%e3%82%81%e3%81%ae%e6%97%a5%e6%9c%ac%e8%aa%9e%e3%82%a4%e3%83%b3%e3%82%b9%e3%83%88%e3%83%a9%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e3%83%87%e3%83%bc%e3%82%bf-%e5%85%ac%e9%96%8b/

Citation

If you use Dango in your research, please cite:

bibtex

@inproceedings{matta2026anlp,
  author    = {Shiho Matta and Yin Jou Huang and Fei Cheng and Takashi Kodama and Hirokazu Kiyomaru and Yugo Murawaki},
  title     = {Pretraining a Japanese-Only Large Language Model for Studying Second Language Acquisition},
  booktitle = {Proceedings of the Thirty-second Annual Meeting of the Association for Natural Language Processing},
  year      = {2026},
  pages     = {3225--3230},
  publisher = {Association for Natural Language Processing},
  address   = {Utsunomiya, Japan}
}

mattashiho/dango-1.8b-100Btok

Dango🍡

Model Details

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Citation

mattashiho/
dango-1.8b-100Btok