---
license: cc-by-4.0
base_model: HPLT/translate-ko-en-v2.0-hplt_opus
library_name: ctranslate2
pipeline_tag: translation
tags: [translation, marian, ctranslate2, int8, ko, en]
---

# translate-windy-hplt-ko-en — ko to en

Bilingual machine translation in **CTranslate2 INT8** for fast CPU inference.
Fine-tuned by **Windstorm Labs** from [`HPLT/translate-ko-en-v2.0-hplt_opus`](https://huggingface.co/HPLT/translate-ko-en-v2.0-hplt_opus).

## Attribution

Derived from [`HPLT/translate-ko-en-v2.0-hplt_opus`](https://huggingface.co/HPLT/translate-ko-en-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_ko-en (clinic cache), 2,000 sentence pairs |
| Tensors modified | 36 |

## Provenance

```
base model.bin  sha256  3b32451b3a44d148ae309300bf269f15d17aef0765dc19bd81d499825ba51a6d
this model.bin  sha256  66515ad86368a0fce3f148f45b0c7f9e6b436099813a57ead5e6b40e764b3b34
```

Verified after INT8 quantization, on the published artifact.

## Evaluation

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

| | spBLEU | chrF |
|---|---:|---:|
| this model | **28.25** | 54.19 |

## Notes

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