modernbert ja 30m EU AI Act Compliance Profile

ModernBERT-Ja-30M

This repository provides Japanese ModernBERT trained by SB Intuitions.

ModernBERT is a new variant of the BERT model that combines local and global attention, allowing it to handle long sequences while maintaining high computational efficiency. It also incorporates modern architectural improvements, such as RoPE.

Our ModernBERT-Ja-30M is trained on a high-quality corpus of Japanese and English text comprising 4.39T tokens, featuring a vocabulary size of 102,400 and a sequence length of 8,192 tokens.

How to Use

You can use our models directly with the transformers library v4.48.0 or higher:

pip install -U "transformers>=4.48.0"

Additionally, if your GPUs support Flash Attention 2, we recommend using our models with Flash Attention 2.

Example Usage

import torch
from transformers import AutoModelForMaskedLM, AutoTokenizer, pipeline

model = AutoModelForMaskedLM.from_pretrained("sbintuitions/modernbert-ja-30m", torch_dtype=torch.bfloat16)
tokenizer = AutoTokenizer.from_pretrained("sbintuitions/modernbert-ja-30m")
fill_mask = pipeline("fill-mask", model=model, tokenizer=tokenizer)

results = fill_mask("おはようございます、今日の天気は<mask>です。")

for result in results:
    print(result)
# {'score': 0.259765625, 'token': 16416, 'token_str': '晴れ', 'sequence': 'おはようございます、今日の天気は晴れです。'}
# {'score': 0.1669921875, 'token': 28933, 'token_str': '曇り', 'sequence': 'おはようございます、今日の天気は曇りです。'}
# {'score': 0.12255859375, 'token': 52525, 'token_str': '快晴', 'sequence': 'おはようございます、今日の天気は快晴です。'}
# {'score': 0.044921875, 'token': 92339, 'token_str': 'くもり', 'sequence': 'おはようございます、今日の天気はくもりです。'}
# {'score': 0.025634765625, 'token': 2988, 'token_str': '雨', 'sequence': 'おはようございます、今日の天気は雨です。'}

Model Series

We provide ModernBERT-Ja in several model sizes. Below is a summary of each

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