translate-windy-hplt-en-af — en to af

Bilingual machine translation in CTranslate2 INT8 for fast CPU inference. Fine-tuned by Windstorm Labs from HPLT/translate-en-af-v2.0-hplt_opus.

Attribution

Derived from HPLT/translate-en-af-v2.0-hplt_opus, from the HPLT project, licensed under CC-BY-4.0. Modified by Windstorm Labs. Attribution is retained as the licence requires.

What we did

Converted from the upstream Marian release, LoRA fine-tuned on parallel data for this language pair, merged into the base weights, then quantized to INT8.

Rank / alpha	8 / 16
Learning rate / steps	2.5e-06 / 50
Target modules	q_proj, v_proj
Seed	42
Training data	opus100_en-af (clinic cache), 2,000 sentence pairs
Tensors modified	36

Provenance

base model.bin  sha256  a6643a56b96010c0b9118a90f2654929878c292467d888ecb3cf18c90cf35f89
this model.bin  sha256  c1bffa92bdaab6e9d83a96a5b5dfd42e117a266502e749990e3591602c706f97

Verified after INT8 quantization, on the published artifact.

Evaluation

FLORES-200 devtest, 200 sentences, beam 4, CTranslate2 INT8 on CPU.

	spBLEU	chrF
this model	39.19	63.06

Notes

• Single language pair: en to af.
• FLORES-200 is news and encyclopedic prose.
• No human evaluation was performed.