This is a small Russian paraphraser based on the google/mt5-small model. It has rather poor paraphrasing performance, but can be fine tuned for this or other tasks.

This model was created by taking the alenusch/mt5small-ruparaphraser model and stripping 96% of its vocabulary which is unrelated to the Russian language or infrequent.

  • The original model has 300M parameters, with 256M of them being input and output embeddings.
  • After shrinking the sentencepiece vocabulary from 250K to 20K the number of model parameters reduced to 65M parameters, and model size reduced from 1.1GB to 246MB.
    • The first 5K tokens in the new vocabulary are taken from the original mt5-small.
    • The next 15K tokens are the most frequent tokens obtained by tokenizing a Russian web corpus from the Leipzig corpora collection.

The model can be used as follows:

# !pip install transformers sentencepiece
import torch
from transformers import T5ForConditionalGeneration, T5Tokenizer

tokenizer = T5Tokenizer.from_pretrained("cointegrated/rut5-small")
model = T5ForConditionalGeneration.from_pretrained("cointegrated/rut5-small")

text = 'Ехал Грека через реку, видит Грека в реке рак. '
inputs = tokenizer(text, return_tensors='pt')
with torch.no_grad():
    hypotheses = model.generate(
        do_sample=True, top_p=0.95, num_return_sequences=10, 
for h in hypotheses:
    print(tokenizer.decode(h, skip_special_tokens=True))
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