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origin-Helsinki-NLP-opus-mt-zls-zls
WindstormLabs/origin-Helsinki-NLP-opus-mt-zls-zls
origin-Helsinki-NLP-opus-mt-zls-zls is a translation model from WindstormLabs. Use it when you need text moved from one language to another. The card lists the license as apache-2.0.
source group: South Slavic languages target group: South Slavic languages OPUS readme: zls-zls
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At a glance
- Task
- Translation
- License
- apache-2.0
- Model type
- marian
- Access
- Public
- Created
- May 25, 2026
- Updated
- Oct 1, 2026
- SHA
- 5b2b0a67
Model card
From the Hugging Face model README
zls-zls
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source group: South Slavic languages
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target group: South Slavic languages
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OPUS readme: zls-zls
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model: transformer
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source language(s): bul mkd srp_Cyrl
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target language(s): bul mkd srp_Cyrl
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model: transformer
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pre-processing: normalization + SentencePiece (spm32k,spm32k)
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a sentence initial language token is required in the form of
>>id<<(id = valid target language ID) -
download original weights: opus-2020-07-27.zip
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test set translations: opus-2020-07-27.test.txt
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test set scores: opus-2020-07-27.eval.txt
Benchmarks
| testset | BLEU | chr-F |
|---|---|---|
| Tatoeba-test.bul-hbs.bul.hbs | 19.3 | 0.514 |
| Tatoeba-test.bul-mkd.bul.mkd | 31.9 | 0.669 |
| Tatoeba-test.hbs-bul.hbs.bul | 18.0 | 0.636 |
| Tatoeba-test.hbs-mkd.hbs.mkd | 19.4 | 0.322 |
| Tatoeba-test.mkd-bul.mkd.bul | 44.6 | 0.679 |
| Tatoeba-test.mkd-hbs.mkd.hbs | 5.5 | 0.152 |
| Tatoeba-test.multi.multi | 26.5 | 0.563 |
System Info:
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hf_name: zls-zls
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source_languages: zls
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target_languages: zls
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opus_readme_url: https://github.com/Helsinki-NLP/Tatoeba-Challenge/tree/master/models/zls-zls/README.md
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original_repo: Tatoeba-Challenge
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tags: ['translation']
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languages: ['hr', 'mk', 'bg', 'sl', 'zls']
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src_constituents: {'hrv', 'mkd', 'srp_Latn', 'srp_Cyrl', 'bul_Latn', 'bul', 'bos_Latn', 'slv'}
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tgt_constituents: {'hrv', 'mkd', 'srp_Latn', 'srp_Cyrl', 'bul_Latn', 'bul', 'bos_Latn', 'slv'}
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src_multilingual: True
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tgt_multilingual: True
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prepro: normalization + SentencePiece (spm32k,spm32k)
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url_model: https://object.pouta.csc.fi/Tatoeba-MT-models/zls-zls/opus-2020-07-27.zip
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url_test_set: https://object.pouta.csc.fi/Tatoeba-MT-models/zls-zls/opus-2020-07-27.test.txt
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src_alpha3: zls
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tgt_alpha3: zls
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short_pair: zls-zls
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chrF2_score: 0.563
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bleu: 26.5
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brevity_penalty: 1.0
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ref_len: 58.0
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src_name: South Slavic languages
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tgt_name: South Slavic languages
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train_date: 2020-07-27
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src_alpha2: zls
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tgt_alpha2: zls
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prefer_old: False
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long_pair: zls-zls
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helsinki_git_sha: 480fcbe0ee1bf4774bcbe6226ad9f58e63f6c535
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transformers_git_sha: 2207e5d8cb224e954a7cba69fa4ac2309e9ff30b
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port_machine: brutasse
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port_time: 2020-08-21-14:41
- Task
- Translation
- Type
- marian
- License
- apache-2.0
- Languages
- hr, mk, bg, sl, zls
- Created
- May 25, 2026
- Updated
- Oct 1, 2026