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---
license: cc-by-4.0
language:
- am
- ru
- en
- uk
- de
- ar
- zh
- es
- hi
datasets:
- s-nlp/ru_paradetox
- s-nlp/paradetox
- textdetox/multilingual_paradetox
library_name: transformers
pipeline_tag: text2text-generation
---
# mT0-XL-detox-orpo
**Resources**:
* [Paper](https://arxiv.org/abs/2407.05449)
* [GitHub with training scripts and data](https://github.com/s-nlp/multilingual-transformer-detoxification)
## Model Information
This is a multilingual 3.7B text detoxification model for 9 languages built on [TextDetox 2024 shared task](https://pan.webis.de/clef24/pan24-web/text-detoxification.html) based on [mT0-XL](https://huggingface.co/bigscience/mt0-xl). The model was trained in a two-step setup: the first step is full fine-tuning on different parallel text detoxification datasets, and the second step is ORPO alignment on a self-annotated preference dataset collected using toxicity and similarity classifiers. See the paper for more details.
In terms of human evaluation, the model is a second-best approach on the [TextDetox 2024 shared task](https://pan.webis.de/clef24/pan24-web/text-detoxification.html). More precisely, the model shows state-of-the-art performance for the Ukrainian language, top-2 scores for Arabic, and near state-of-the-art performance for other languages.
## Example usage
```python
from transformers import AutoTokenizer, AutoModelForSeq2SeqLM
model = AutoModelForSeq2SeqLM.from_pretrained('s-nlp/mt0-xl-detox-orpo', device_map="auto")
tokenizer = AutoTokenizer.from_pretrained('s-nlp/mt0-xl-detox-orpo')
LANG_PROMPTS = {
'zh': '排毒：',
'es': 'Desintoxicar: ',
'ru': 'Детоксифицируй: ',
'ar': 'إزالة السموم: ',
'hi': 'विषहरण: ',
'uk': 'Детоксифікуй: ',
'de': 'Entgiften: ',
'am': 'መርዝ መርዝ: ',
'en': 'Detoxify: ',
}
def detoxify(text, lang, model, tokenizer):
encodings = tokenizer(LANG_PROMPTS[lang] + text, return_tensors='pt').to(model.device)
outputs = model.generate(**encodings.to(model.device),
max_length=128,
num_beams=10,
no_repeat_ngram_size=3,
repetition_penalty=1.2,
num_beam_groups=5,
diversity_penalty=2.5,
num_return_sequences=5,
early_stopping=True,
)
return tokenizer.batch_decode(outputs, skip_special_tokens=True)
```
## Citation
```
@misc{rykov2024smurfcatpan2024textdetox,
title={SmurfCat at PAN 2024 TextDetox: Alignment of Multilingual Transformers for Text Detoxification},
author={Elisei Rykov and Konstantin Zaytsev and Ivan Anisimov and Alexandr Voronin},
year={2024},
eprint={2407.05449},
archivePrefix={arXiv},
primaryClass={cs.CL},
url={https://arxiv.org/abs/2407.05449},
}
```
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