---
language:
- ar
base_model:
- LiquidAI/LFM2-1.2B
license: cc-by-nc-4.0
---

# Hala-1.2B-EN-AR-Translator

<p align="center">
  <img src="https://i.ibb.co/pvhp1XfJ/halalogo.png" alt="Hala logo" width="450" />
</p>

**Paper**: *Hala Technical Report: Building Arabic-Centric Instruction & Translation Models at Scale*

**Authors**: Hasan Abed Al Kader Hammoud\*, Mohammad Zbeeb\*, Bernard Ghanem

**Affiliation**: King Abdullah University of Science and Technology (KAUST)

\*Equal contribution

---

## 📖 Overview

The **Hala-1.2B-EN-AR-Translator** is a lightweight translation model fine-tuned for **English → Arabic** translation, particularly in **instruction-style and conversational contexts**.

It powers the creation of the **Hala dataset** and can also be used as a standalone translator for research, dataset generation, or preprocessing tasks.

---

## 🔧 Usage Example

```python
from transformers import AutoModelForCausalLM, AutoTokenizer, pipeline

model_id = "hammh0a/Hala-1.2B-EN-AR-Translator"

tok = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
    model_id, torch_dtype="auto", device_map="auto"
)

pipe = pipeline("text-generation", model=model, tokenizer=tok)

# Example English text
text = "Physics is the study of matter, energy, and the interactions between them."

messages = [
    {
        "role": "user",
        "content": "Translate everything that follows into Arabic:\n\n" + text,
    }
]

prompt = tok.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)

out = pipe(prompt, max_new_tokens=256, do_sample=False)

print(out[0]["generated_text"])
```

---

## EN→AR Translation Quality on 500 Sampled MMLU Questions

| **System** | **BLEU ↑** | **ROUGE-L ↑** | **chrF++ ↑** |
|------------|------------|---------------|--------------|
| *Teacher translator* | | | |
| CohereLabs/command-a-translate-08-2025 (FP16) | 53.1 | 26.0 | 68.6 |
| **hammh0a/command-a-translate-FP8-Dynamic** | 53.5 (+0.3) | 26.0 (+0.0) | 68.9 (+0.3) |
| *Lightweight translator (LFM2-1.2B family)* | | | |
| LiquidAI/LFM2-1.2B (base) | 16.0 | 19.3 | 43.2 |
| **Our LFM2-1.2B Translator (ours)** | 48.2 (+32.1) | 25.1 (+5.9) | 64.2 (+21.0) |


---


## 📚 Citation

If you use **Hala-1.2B-EN-AR-Translator**, please cite:

Link: https://arxiv.org/abs/2509.14008

```bibtex
@misc{hammoud2025halatechnicalreportbuilding,
      title={Hala Technical Report: Building Arabic-Centric Instruction & Translation Models at Scale}, 
      author={Hasan Abed Al Kader Hammoud and Mohammad Zbeeb and Bernard Ghanem},
      year={2025},
      url={https://arxiv.org/abs/2509.14008}, 
}
```