opus-mt-en-pt

Overview

This repository contains the English-to-Portuguese OPUS-MT transformer model from Helsinki-NLP/opus-mt-tc-big-en-pt.

Source

Source model: Helsinki-NLP/opus-mt-tc-big-en-pt

The upstream model card describes this as a neural machine translation model for translating from English (en) to Portuguese (pt). It is part of the OPUS-MT project and was trained with OPUS data using Marian NMT, then converted for use with Transformers.

Files

File	Description
model.safetensors	Model weights
config.json	Marian model configuration
generation_config.json	Text generation configuration
source.spm	Source SentencePiece model
target.spm	Target SentencePiece model
vocab.json	Vocabulary
tokenizer_config.json	Tokenizer configuration
special_tokens_map.json	Special token mapping

Intended Use

Use this model for English-to-Portuguese machine translation with Transformers-compatible Marian tooling.

Training Data

The upstream model card states that training data is taken from OPUS.

Evaluation

The upstream model card reports self-reported BLEU scores for English-to-Portuguese translation:

Test Set	BLEU
flores101-devtest	50.4
tatoeba-test-v2021-08-07	49.6

Limitations

• Evaluation scores are inherited from the upstream model card and are not independently verified here.
• Translation quality can vary by domain and input style.
• This repository does not document additional fine-tuning or conversion beyond the upstream source model files.

License

CC-BY-4.0, matching the upstream source model metadata.