LLM-jp 13B v2.0 Base

LLM-jp 13B v2.0 Base was pretrained on 256 billion tokens. It uses a revised mixed Japanese, English and code vocabulary rather than the v1 tokenizer.

Research release

The token vocabulary changes between generations

The card describes separate code, English and Japanese vocabulary construction, followed by score re-estimation. Training used Megatron-LM on 128 A100 GPUs. Its Japanese corpus includes Common Crawl rather than the earlier mC4 mixture.LLM-jp 13B v2.0 Base official model card

Do not mix the v1 and v2 tokenizers

Practical guidance. This release changes more than instruction tuning. A fair comparison with v1 needs to account for different tokenization, context length and pretraining data.

Specifications & access

LLM-jp 13B v2.0 Base specifications
DetailValue and conditions
StatusResearch release
AccessDownloadable
Model identifiersllm-jp-13b-v2.0
Context window4,096 tokens

Maximum sequence length stated in the model card.

LLM-jp 13B v2.0 Base official model card
Architecture40 layers; hidden size 5,120; 40 attention heads.LLM-jp 13B v2.0 Base official model card
Vocabulary96,867 tokenizer entries; model vocabulary padded to 97,024.LLM-jp 13B v2.0 Base official model card
LicenseApache 2.0.LLM-jp 13B v2.0 Base official model card

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