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English to Spanish translation model translate-tc-big-en-es

Open machine translation from English into Spanish, published by Windstorm Labs on Hugging Face.

Task
Translation: English → Spanish
Languages
English en, Spanish es
Lineage
OPUS-MT tc-big
Format
transformers (Marian), safetensors
Hugging Face
WindyTranslate/translate-tc-big-en-es
Last updated on HF
2026-08-04

Quality

BenchmarkchrF++BLEUBandMeasured
FLORES-200 dev, 48 sentences55.8232.79Good2026-08-04

A screening score on 48 sentences, not a publication result. Bands: Excellent ≥ 60, Good 45–60, Usable 30–45, Limited 15–30, Not recommended < 15. Method and caveats.

Recorded output (sentence 1, first 110 characters)

Source
On Monday, scientists from the Stanford University School of Medicine announced the invention of a new diagnos…
Reference
El lunes, los científicos de la facultad de medicina de la Universidad de Stanford anunciaron el invento de un…
This model
El lunes, científicos de la Facultad de Medicina de la Universidad de Stanford anunciaron la invención de una

How to run

Shell
pip install transformers sentencepiece torch
Python
from transformers import AutoTokenizer, AutoModelForSeq2SeqLM

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

batch = tok(["Where is the train station?"], 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-en-es
Upstream licence
CC-BY-4.0
Attribution
Based on OPUS-MT model Helsinki-NLP/opus-mt-tc-big-en-es 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-en-es
(https://huggingface.co/WindyTranslate/translate-tc-big-en-es), published by Windstorm Labs (https://windstormlabs.com).
Based on OPUS-MT model Helsinki-NLP/opus-mt-tc-big-en-es 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.

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