Fine-tuning Gemini cho tieng Viet: Kinh nghiem thuc te

## Tai sao Fine-tune?

- Domain terminology - Output style - Giam hallucination

## Dataset Format

```json {"input": "question", "output": "answer"} ```

## Results

| Metric | Before | After | |--------|--------|-------| | BLEU | 0.42 | 0.68 | | Accuracy | 78% | 91% |

## Lessons

1. Data cleaning quan trong 2. Early stopping 3. Cost: $50-200