textdetox/bert-multilingual-toxicity-classifier

Multilingual Toxicity Classifier for 15 Languages (2025)

This is an instance of bert-base-multilingual-cased that was fine-tuned on binary toxicity classification task based on our updated (2025) dataset textdetox/multilingual_toxicity_dataset.

Now, the models covers 15 languages from various language families:

Language	Code	F1 Score
English	en	0.9035
Russian	ru	0.9224
Ukrainian	uk	0.9461
German	de	0.5181
Spanish	es	0.7291
Arabic	ar	0.5139
Amharic	am	0.6316
Hindi	hi	0.7268
Chinese	zh	0.6703
Italian	it	0.6485
French	fr	0.9125
Hinglish	hin	0.6850
Hebrew	he	0.8686
Japanese	ja	0.8644
Tatar	tt	0.6170

How to use

import torch
from transformers import AutoTokenizer, AutoModelForSequenceClassification

tokenizer = AutoTokenizer.from_pretrained('textdetox/bert-multilingual-toxicity-classifier')
model = AutoModelForSequenceClassification.from_pretrained('textdetox/bert-multilingual-toxicity-classifier')

batch = tokenizer.encode("You are amazing!", return_tensors="pt")

output = model(batch)
# idx 0 for neutral, idx 1 for toxic

Citation

The model is prepared for TextDetox 2025 Shared Task evaluation.

@inproceedings{dementieva2025overview,
  title={Overview of the Multilingual Text Detoxification Task at PAN 2025},
  author={Dementieva, Daryna and
      Protasov, Vitaly and
      Babakov, Nikolay and
      Rizwan, Naquee and
      Alimova, Ilseyar and
      Brune, Caroline and
      Konovalov, Vasily and
      Muti, Arianna and
      Liebeskind, Chaya and
      Litvak, Marina and
      Nozza, Debora, and
      Shah Khan, Shehryaar and
      Takeshita, Sotaro and
      Vanetik, Natalia and
      Ayele, Abinew Ali and
      Schneider, Frolian and
      Wang, Xintog and
      Yimam, Seid Muhie and
      Elnagar, Ashraf and
      Mukherjee, Animesh and
      Panchenko, Alexander},
    booktitle={Working Notes of CLEF 2025 -- Conference and Labs of the Evaluation Forum},
    editor={Guglielmo Faggioli and Nicola Ferro and Paolo Rosso and Damiano Spina},
    month =                    sep,
    publisher =                {CEUR-WS.org},
    series =                   {CEUR Workshop Proceedings},
    site =                     {Vienna, Austria},
    url =                      {https://ceur-ws.org/Vol-4038/paper_278.pdf},
    year =                     2025
}