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East Slavic languages to Portuguese translation model translate-tc-big-zle-pt

Open machine translation from East Slavic languages into Portuguese, published by Windstorm Labs on Hugging Face.

Task: Translation: East Slavic languages → Portuguese
Languages: East Slavic languages zle, Portuguese pt
Lineage: OPUS-MT tc-big
Format: transformers (Marian), safetensors
Hugging Face: WindyTranslate/translate-tc-big-zle-pt
Last updated on HF: 2026-08-04

Quality

Not yet scored. FLORES-200 has no test set for East Slavic languages → Portuguese, so this pair is outside the screening run.

How to run

Shell

pip install transformers sentencepiece torch

Python

from transformers import AutoTokenizer, AutoModelForSeq2SeqLM

repo = "WindyTranslate/translate-tc-big-zle-pt"
tok = AutoTokenizer.from_pretrained(repo)
model = AutoModelForSeq2SeqLM.from_pretrained(repo)

batch = tok(["<East Slavic languages text>"], return_tensors="pt", padding=True)
print(tok.batch_decode(model.generate(**batch), skip_special_tokens=True)[0])

Tested: Pattern run on 2026-10-01 against WindyTranslate/translate-tc-big-en-fr with transformers 4.57.6 and 5.18.0 on CPU ("Où se trouve la gare ?"); multi-target token prefix run against translate-tc-bible-big-mul-deu_eng_nld. Not run on every model individually.

Licence and attribution

Licence: CC-BY-4.0
Upstream: Helsinki-NLP/opus-mt-tc-big-zle-pt
Upstream licence: CC-BY-4.0
Attribution: Based on OPUS-MT model Helsinki-NLP/opus-mt-tc-big-zle-pt by Helsinki-NLP (Language Technology Research Group, University of Helsinki). Licensed CC-BY-4.0.

Copy this into your NOTICE file (or equivalent) when you ship the model:

NOTICE

This product uses the model WindyTranslate/translate-tc-big-zle-pt
(https://huggingface.co/WindyTranslate/translate-tc-big-zle-pt), published by Windstorm Labs (https://windstormlabs.com).
Based on OPUS-MT model Helsinki-NLP/opus-mt-tc-big-zle-pt by Helsinki-NLP (Language Technology Research Group, University of Helsinki). Licensed CC-BY-4.0.
Windstorm Labs modified the upstream weights; the model card describes what was changed.
Licensed under Creative Commons Attribution 4.0 International: https://creativecommons.org/licenses/by/4.0/

This is a convenience, not legal advice. See Licensing.

Related models

Model	chrF++ (FLORES-200 dev)	Licence
Portuguese to East Slavic languages translate-tc-big-pt-zle	not in FLORES-200	CC-BY-4.0
English to Portuguese translate-tc-big-en-pt	66.6 Excellent	CC-BY-4.0
Catalan to Portuguese translate-ca-pt	52.3 Good	Apache-2.0
Galician to Portuguese translate-gl-pt	49.1 Good	Apache-2.0
Ukrainian to Portuguese translate-uk-pt	47.1 Good	Apache-2.0
Japanese to Portuguese translate-ja-pt	39.8 Usable	Apache-2.0
Esperanto to Portuguese translate-eo-pt	34.3 Usable	Apache-2.0
East Slavic languages to Baltic languages translate-tc-base-zle-bat	not in FLORES-200	CC-BY-4.0