---
license: apache-2.0
base_model: Helsinki-NLP/opus-mt-yo-es
library_name: transformers
pipeline_tag: translation
tags: [translation, marian, ctranslate2, yoruba, spanish]
---

# translate-yo-es — Yoruba to Spanish

Fine-tuned by **Windstorm Labs** from
[`Helsinki-NLP/opus-mt-yo-es`](https://huggingface.co/Helsinki-NLP/opus-mt-yo-es).

## Attribution

Derived from `Helsinki-NLP/opus-mt-yo-es`, copyright the Helsinki-NLP / OPUS-MT project,
licensed under **Apache-2.0**. **Modified by Windstorm Labs.** The upstream notice is
retained as the licence requires.

## Contents

| Directory | Contents |
|---|---|
| `lora/` | **Windstorm Labs fine-tune.** |
| `lora-ct2-int8/` | CTranslate2 INT8 build of the fine-tune. Recommended for CPU inference. |
| `herm0/` | Upstream weights, retained for reference. |
| `herm0-ct2-int8/` | CTranslate2 INT8 build of the upstream weights. |

## What we did

LoRA fine-tune on GlobalVoices Yoruba–Spanish parallel data — the model's own 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 | GlobalVoices yo-es, 113 sentence pairs |
| Tensors modified | 36 of 259 |

## Provenance

```
upstream model.bin  sha256  ac8f61aa0c8eb6c36b02c1e656facbe8bd581cc6623a10e5817e223099dbb3dc
our      model.bin  sha256  770efc87c1c46cff851f461666ed8ec1d2e1c69685dfaae5e7dc30412a51acc6
```

Verified after INT8 quantization, on the published artifact.

## Notes

- Yoruba–Spanish is a low-resource pair; quality follows the base model.
- No FLORES-200 score is published for this pair because none has been measured.
- No human evaluation was performed.