---
base_model: Qwen/Qwen2.5-Coder-1.5B-Instruct
library_name: peft
pipeline_tag: text-generation
tags:
  - lora
  - transformers
  - roblox
  - luau
  - code-generation
  - gaming
license: apache-2.0
language:
  - en
  - lua
metrics:
  - perplexity
---

# 🎮 Qwen2.5 Coder 1.5B Roblox

![Roblox](https://img.shields.io/badge/Roblox-Luau-00A2FF?style=for-the-badge&logo=roblox)
![LoRA](https://img.shields.io/badge/LoRA-Adapter-FF6B6B?style=for-the-badge)
![License](https://img.shields.io/badge/License-Apache%202.0-green?style=for-the-badge)

*A specialized code generation model fine-tuned for Roblox Luau programming*

---

### ⚡ Run in Google Colab (Recommended)
[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1Sa3EvZOmmCsYQt7GWv1EcjLGcGJVVlUt?usp=sharing)

**No setup required** Click the badge above and run the chatbot instantly in your browser.
- 🎯 Pre-configured environment
- 🔥 GPU-accelerated inference
- 💬 Interactive chat interface
- ⏱️ Ready in ~3 minutes

---

## 📖 Overview

**Qwen2.5 Coder 1.5B Roblox** is a parameter-efficient fine-tuned model specifically designed for **Roblox Luau** development. Built on top of Qwen2.5-Coder-1.5B-Instruct, this model excels at generating, completing, and understanding Luau code patterns commonly used in Roblox game development.

### 🎯 What Makes This Special?

- 🎮 **Roblox-Native**: Trained exclusively on authentic Luau code from the official Roblox corpus
- 🧠 **Context-Aware**: Understands Roblox-specific APIs, patterns, and best practices

---

## 🏗️ Model Architecture

| Component | Details |
|-----------|---------|
| **Base Model** | [Qwen/Qwen2.5-Coder-1.5B-Instruct](https://huggingface.co/Qwen/Qwen2.5-Coder-1.5B-Instruct) |
| **Adapter Type** | LoRA (Low-Rank Adaptation) |
| **LoRA Rank** | 8 |
| **LoRA Alpha** | 32 |
| **Target Modules** | `q_proj`, `v_proj` |
| **Training Hardware** | TPU v5e-8 (Multi-core) |

---

## 📚 Training Details

### Dataset
- **Source**: [Roblox/luau_corpus](https://huggingface.co/datasets/Roblox/luau_corpus)
- **Filtering**: Quality-filtered for code length (20-5000 chars) and Luau keyword presence
- **Split**: 90% train / 10% validation

### Training Configuration
```python
{
    "max_length": 1024,
    "batch_size": 4,
    "gradient_accumulation_steps": 32,
    "learning_rate": 3e-5,
    "scheduler": "cosine_annealing",
    "epochs": 1,
    "optimizer": "AdamW"
}
```

---

## 🚀 Quick Start

### Installation
```bash
pip install transformers peft torch
```

### Basic Usage
```python
from transformers import AutoModelForCausalLM, AutoTokenizer
from peft import PeftModel

# Load base model
base_model = AutoModelForCausalLM.from_pretrained(
    "Qwen/Qwen2.5-Coder-1.5B-Instruct",
    torch_dtype="auto",
    device_map="auto"
)

tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen2.5-Coder-1.5B-Instruct")

# Load LoRA adapter
model = PeftModel.from_pretrained(base_model, "umjunsik1323/Qwen2.5-Coder-1.5B-roblox")

# Generate Luau code
messages = [
    {"role": "system", "content": "You are a Roblox Luau programming expert."},
    {"role": "user", "content": "Create a function to make a part glow"}
]

text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tokenizer(text, return_tensors="pt").to(model.device)

outputs = model.generate(**inputs, max_new_tokens=256, temperature=0.7)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))
```

### Advanced: Merge and Export
```python
# Merge LoRA weights into base model
merged_model = model.merge_and_unload()
merged_model.save_pretrained("./qwen-luau-merged")
```

---

## 💡 Features

### Supported Tasks
- ✨ **Code Completion**: Finish partial Luau scripts intelligently
- 🔧 **Function Generation**: Create Roblox-specific functions from descriptions
- 📝 **Code Explanation**: Understand and document existing Luau code
- 🐛 **Error Fixing**: Suggest corrections for common Luau mistakes
- 🎯 **API Usage**: Generate proper Roblox API calls

### Example Prompts
```lua
-- Completion
"local function teleportPlayer(player, position)"
→ Generates complete teleportation logic

-- Generation
"Create a tween that smoothly moves a part to a new position"
→ Generates TweenService implementation

-- Context-Aware
"Handle player damage with a cooldown system"
→ Generates debounce pattern with Humanoid health management
```

---

## 🎯 Use Cases

### Game Development
- Quick prototyping of Roblox mechanics
- Learning Luau programming patterns
- Code review and suggestions

### Education
- Teaching Roblox development
- Demonstrating best practices
- Interactive coding assistance

### Productivity
- Accelerating development workflows
- Reducing boilerplate code
- Standardizing team coding styles

---

## ⚠️ Limitations

- **Scope**: Specialized for Luau only, not general-purpose programming
- **Context Window**: Limited to 1024 tokens
- **Recency**: Training data may not include latest Roblox API updates
- **Validation**: Always test generated code in Roblox Studio

---

## 📄 Citation

```bibtex
@misc{youngseong_kim_2025,
	author       = { Youngseong Kim },
	title        = { Qwen2.5-Coder-1.5B-roblox (Revision 63e9452) },
	year         = 2025,
	url          = { https://huggingface.co/umjunsik1323/Qwen2.5-Coder-1.5B-roblox },
	doi          = { 10.57967/hf/7093 },
	publisher    = { Hugging Face }
}
```

---

## 📜 License

This LoRA adapter is released under **Apache 2.0 License**, maintaining compatibility with the base Qwen2.5-Coder model.

---

## 🤝 Acknowledgments

- **Qwen Team** at Alibaba Cloud for the base model
- **Roblox** for providing the Luau corpus dataset
- **Kaggle** for providing the computational resources

---

**Made with ❤️ for the Roblox Developer Community**