Model reference · open weights
japanese-hubert is an open-weight embedding model from yky-h. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.
Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.
What it is
| Released by | yky-h |
|---|---|
| Type | Embedding models |
| Task | Embeddings |
| Parameters (lead) | 94M |
| Released | 2025-12-15 |
| Popularity | 10k downloads / month |
| Licence | Open weights |
About
This is a mirror of japanese-hubert-base, originally released by rinna Co., Ltd. The original model is licensed under the Apache License 2.0. This mirror follows the same license terms. All copyrights remain with the original authors.
This is a Japanese HuBERT Base model trained by rinna Co., Ltd.
Model summary
The model architecture is the same as the original HuBERT Base model, which contains 12 transformer layers with 12 attention heads. The model was trained using code from the official repository, and the detailed training configuration can be found in the same repository and the original paper.
Training
The model was trained on approximately 19,000 hours of following Japanese speech corpus ReazonSpeech v1.
Contributors
Release date
April 28, 2023
import soundfile as sf
from transformers import AutoFeatureExtractor, AutoModel
model_name = "yky-h/japanese-hubert-base"
feature_extractor = AutoFeatureExtractor.from_pretrained(model_name)
model = AutoModel.from_pretrained(model_name)
model.eval()
raw_speech_16kHz, sr = sf.read(audio_file)
inputs = feature_extractor(
raw_speech_16kHz,
return_tensors="pt",
sampling_rate=sr,
)
outputs = model(**inputs)
print(f"Input: {inputs.input_values.size()}") # [1, #samples]
print(f"Output: {outputs.last_hidden_state.size()}") # [1, #frames, 768]
A fairseq checkpoint file can also be available here.
@misc{rinna-japanese-hubert-base,
title = {rinna/japanese-hubert-base},
author = {Hono, Yukiya and Mitsui, Kentaro and Sawada, Kei},
url = {https://huggingface.co/rinna/japanese-hubert-base}
}
@inproceedings{sawada2024release,
title = {Release of Pre-Trained Models for the {J}apanese Language},
author = {Sawada, Kei and Zhao, Tianyu and Shing, Makoto and Mitsui, Kentaro and Kaga, Akio and Hono, Yukiya and Wakatsuki, Toshiaki and Mitsuda, Koh},
booktitle = {Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024)},
month = {5},
year = {2024},
pages = {13898--13905},
url = {https://aclanthology.org/2024.lrec-main.1213},
note = {\url{https://arxiv.org/abs/2404.01657}}
}
@article{hsu2021hubert,
author = {Hsu, Wei-Ning and Bolte, Benjamin and Tsai, Yao-Hung Hubert and Lakhotia, Kushal and Salakhutdinov, Ruslan and Mohamed, Abdelrahman},
journal = {IEEE/ACM Transactions on Audio, Speech, and Language Processing},
title = {HuBERT: Self-Supervised Speech Representation Learning by Masked Prediction of Hidden Units},
year = {2021},
volume = {29},
pages = {3451-3460},
doi = {10.1109/TASLP.2021.3122291}
}
From the published model card. Full card on the HuggingFace links in the sidebar.
Using it via the API
Once AxForge deploys japanese-hubert for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (japanese-hubert below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/embeddings \
-H "Authorization: Bearer $AXFORGE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"japanese-hubert","input":"text to embed"}'
Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.