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Czech to English translation model translate-cs-en

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

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

Quality

BenchmarkchrF++BLEUBandMeasured
FLORES-200 dev, 48 sentences59.6431.20Good2026-08-04

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
V pondělí vědci z Lékařské fakulty Stanfordovy univerzity oznámili vynález nového diagnostického nástroje, kte…
Reference
On Monday, scientists from the Stanford University School of Medicine announced the invention of a new diagnos…
This model
On Monday, scientists at Stanford University Medical School announced the invention of a new diagnostic tool t

How to run

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

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

batch = tok(["<Czech 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
Apache-2.0
Upstream
Helsinki-NLP/opus-mt-cs-en
Upstream licence
Apache-2.0
Attribution
Based on OPUS-MT model Helsinki-NLP/opus-mt-cs-en by Helsinki-NLP (Language Technology Research Group, University of Helsinki). Licensed Apache-2.0.

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

NOTICE
This product uses the model WindyTranslate/translate-cs-en
(https://huggingface.co/WindyTranslate/translate-cs-en), published by Windstorm Labs (https://windstormlabs.com).
Based on OPUS-MT model Helsinki-NLP/opus-mt-cs-en by Helsinki-NLP (Language Technology Research Group, University of Helsinki). Licensed Apache-2.0.
Windstorm Labs modified the upstream weights; the model card describes what was changed.
Licensed under the Apache License, Version 2.0: https://www.apache.org/licenses/LICENSE-2.0

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

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