LLM-jp 1.3B v1.0 Base

LLM-jp 1.3B v1.0 is an early Japanese-English pretrained model. It includes source-code data and uses the project's 50,570-entry mixed vocabulary.

Research release

The final stage added selected corpus data

The pretraining sequence used ten non-overlapping corpus folds, then another 27 billion tokens selected from the same data sources. Those sources include Japanese mC4, English Pile data, Wikipedia and The Stack.LLM-jp 1.3B v1.0 Base official model card

Preserve the original tokenizer in reproductions

Practical guidance. Use this compact historical checkpoint to reproduce early LLM-jp work. Newer tokenizer vocabularies and chat templates are not interchangeable with this release.

Megatron-DeepSpeed files and earlier checkpoint

The mdsfmt repository is the training-format distribution. The itr87430 checkpoint precedes the final 27-billion-token stage and represents about 270 billion seen tokens. It remains grouped here as a training checkpoint, not a new model family.LLM-jp 1.3B v1.0 Megatron-DeepSpeed checkpoints

Specifications & access

LLM-jp 1.3B v1.0 Base specifications
DetailValue and conditions
StatusResearch release
AccessDownloadable
Model identifiersllm-jp-1.3b-v1.0llm-jp-1.3b-v1.0-mdsfmtllm-jp-1.3b-v1.0-mdsfmt-itr87430
Context window2,048 tokens

Maximum sequence length stated in the model card.

LLM-jp 1.3B v1.0 Base official model card
Architecture24 layers; hidden size 2048; 16 attention heads.LLM-jp 1.3B v1.0 Base official model card
LicenseApache 2.0.LLM-jp 1.3B v1.0 Base official model card
Training300 billion tokens; Megatron-DeepSpeed on the mdx platform.LLM-jp 1.3B v1.0 Base official model card

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