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yanolja/
YanoljaNEXT-Rosetta-12B-2510

Name: YanoljaNEXT-Rosetta-12B-2510
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YanoljaNEXT-Rosetta-12B-2510

This model is a fine-tuned version of google/gemma-3-12b-pt. As it is intended solely for text generation, we have extracted and utilized only the Gemma3ForCausalLM component from the original architecture.

Unlike our previous EEVE models, this model does not feature an expanded tokenizer.

Model Name: yanolja/YanoljaNEXT-Rosetta-12B-2510
Base Model: google/gemma-3-12b-pt

Model Description

This model is a 12-billion parameter, decoder-only language model built on the Gemma3 architecture and fine-tuned by Yanolja NEXT. It is specifically designed to translate structured data (JSON format) while preserving the original data structure.

The model was trained on a multilingual dataset covering the following languages equally:

Arabic
Bulgarian
Chinese
Czech
Danish
Dutch
English
Finnish
French
German
Greek
Gujarati
Hebrew
Hindi
Hungarian
Indonesian
Italian
Japanese
Korean
Persian
Polish
Portuguese
Romanian
Russian
Slovak
Spanish
Swedish
Tagalog
Thai
Turkish
Ukrainian
Vietnamese

While optimized for these languages, it may also perform effectively on other languages supported by the base Gemma3 model.

How to use

You can use this model with the transformers library as follows:

python

import json
import torch
from transformers import AutoTokenizer, AutoModelForCausalLM

model_id = "yanolja/YanoljaNEXT-Rosetta-12B-2510"
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    dtype=torch.bfloat16,
    device_map="auto",
    max_memory={0: "47GB"},
)
tokenizer = AutoTokenizer.from_pretrained(model_id)

target_language = "Korean"
context = {
  "context": "Simple introduction about a tech company.",
  "tone": "Informative and helpful",
  "glossary": {
    "Yanolja NEXT": "야놀자넥스트",
    "travel industry": "여행 산업",
  }
}

system = [f"Translate the user's text to {target_language}."]
for key, value in context.items():
  key_pascal = key.capitalize()
  if isinstance(value, dict):
    system.append(f"{key_pascal}:")
    for f, t in value.items():
      system.append(f"- {f} -> {t}")
  else:
    system.append(f"{key_pascal}: {value}")

system.append("Provide the final translation immediately without any other text.")

source = {
  "company_name": "Yanolja NEXT",
  "description": "Yanolja NEXT is a company that provides cutting-edge "
                 "technology for the global travel industry.",
}

messages = [
    {"role": "system", "content": "\n".join(system)},
    {"role": "user", "content": json.dumps(source, ensure_ascii=False)},
]

prompt = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
print(prompt)
# <bos><start_of_turn>instruction
# Translate the user's text to Korean.
# Context: Simple introduction about a tech company.
# Tone: Informative and helpful
# Glossary:
# - Yanolja NEXT -> 야놀자넥스트
# - travel industry -> 여행 산업
# Provide the final translation immediately without any other text.<end_of_turn>
# <start_of_turn>source
# {"company_name": "Yanolja NEXT", "description": "Yanolja NEXT is a company that provides cutting-edge technology for the global travel industry."}<end_of_turn>
# <start_of_turn>translation

inputs = tokenizer(prompt, return_tensors="pt").to("cuda")
input_length = inputs["input_ids"].shape[1]

with torch.inference_mode():
    outputs = model.generate(
        **inputs,
        max_new_tokens=64,
    )

generated_tokens = outputs[0][input_length:]
translation = tokenizer.decode(generated_tokens, skip_special_tokens=True)

print(json.dumps(json.loads(translation), indent=2, ensure_ascii=False))
# {
#   "company_name": "야놀자넥스트",
#   "description": "야놀자넥스트는 글로벌 여행 산업에 최첨단 기술을 제공하는 회사입니다."
# }

The model outputs the final translation in JSON format when appropriate, or plain text for simple translations.

Training Procedure

Training Data

The translation datasets were synthesized using fineweb corpora.

The model was fine-tuned on synthetic multilingual translation data to optimize performance across the supported language pairs.

Performance

Translation Quality Benchmarks

The following CHrF++ scores (WMT24++) demonstrate the model's competitive performance compared to other state-of-the-art translation models on English to Korean translation:

Model	CHrF++ Score (WMT24++)
yanolja/YanoljaNEXT-Rosetta-12B-2510	37.36
openai/gpt-4o	36.08
google/gemini-2.5-flash	35.25
yanolja/YanoljaNEXT-Rosetta-12B	34.75
yanolja/YanoljaNEXT-Rosetta-20B	33.87
google/gemini-2.0-flash-001	33.81
openai/gpt-oss-120b	31.51
google/gemma-3-27b-it	30.05
google/gemma-3-12b-pt	29.31

YanoljaNEXT-Rosetta-12B-2510 achieves competitive translation quality while maintaining the efficiency of a 12B parameter model. Scores for the other language pairs can be found in the WMT24++ Evaluation Results.

Intended Uses & Limitations

This model is intended for translating structured data (JSON format) while preserving the original structure. It is particularly well-suited for tasks such as localizing product catalogs, translating hotel reviews, or handling any other structured content that requires accurate translation.

Limitations

The model is primarily optimized for processing JSON data. Its performance on unstructured text or other data formats may vary. In some cases, the model may produce invalid JSON, repetitive output, or inaccurate translations.

License

This model is released under the Gemma license, inherited from its base model, google/gemma-3-12b-pt. Please consult the official Gemma license terms for detailed usage guidelines.

Acknowledgments

This work was supported by the Korea Creative Content Agency (KOCCA) grant, funded by the Ministry of Culture, Sports and Tourism (MCST) in 2025 (Project Name: Cultivating Masters and Doctoral Experts to Lead Digital-Tech Tourism, Project Number: RS-2024-00442006, Contribution Rate: 100%).

Citation

If you use this model, please consider citing:

@misc{yanolja2025yanoljanextrosetta,
  author = {Yanolja NEXT Co., Ltd.},
  title = {YanoljaNEXT-Rosetta-12B-2510},
  year = {2025},
  publisher = {Hugging Face},
  journal = {Hugging Face repository},
  howpublished = {\\url{https://huggingface.co/yanolja/YanoljaNEXT-Rosetta-12B-2510}}
}

References

This work utilizes several models and datasets. We would like to acknowledge the original authors for their valuable contributions to the field.

@misc{gemma3,
  author = {Google},
  title = {Gemma 3},
  year = {2024},
  publisher = {Google DeepMind},
  howpublished = {\\url{https://deepmind.google/models/gemma/gemma-3/}}
}

@misc{penedo2025fineweb2pipelinescale,
  title = {FineWeb2: One Pipeline to Scale Them All -- Adapting Pre-Training Data Processing to Every Language}, 
  author = {Guilherme Penedo and Hynek Kydlíček and Vinko Sabolčec and Bettina Messmer and Negar Foroutan and Amir Hossein Kargaran and Colin Raffel and Martin Jaggi and Leandro Von Werra and Thomas Wolf},
  year = {2025},
  eprint = {2506.20920},
  archivePrefix = {arXiv},
  primaryClass = {cs.CL},
  url = {https://arxiv.org/abs/2506.20920},
}

@misc{lozhkov2024fineweb-edu,
  author = {Lozhkov, Anton and Ben Allal, Loubna and von Werra, Leandro and Wolf, Thomas},
  title = {FineWeb-Edu: the Finest Collection of Educational Content},
  year = 2024,
  url = {https://huggingface.co/datasets/HuggingFaceFW/fineweb-edu},
  doi = {10.57967/hf/2497},
  publisher={Hugging Face}
}