Model Details
Table with columns: Attribute, Value| Attribute | Value |
|---|
| Base Model | Qwen2.5-Coder-3B-Instruct |
| Fine-Tuning Method | LoRA |
| Framework | Unsloth |
| Dataset | Python Code Instructions 15K |
| Training Samples | 15,000 |
| GPU | NVIDIA Tesla T4 |
| Quantized Format | GGUF Q8_0 |
| Primary Language | Python |
Training Pipeline
Training was performed incrementally:
Table with columns: Stage, Samples| Stage | Samples |
|---|
| Stage 1 | 0 - 5,000 |
| Stage 2 | 5,000 - 10,000 |
| Stage 3 | 10,000 - 15,000 |
The model was trained using parameter-efficient fine-tuning (LoRA), allowing adaptation of the base model while keeping computational requirements low.
Benchmark Results

HumanEval Comparison
The model was evaluated against the original Qwen2.5-Coder-3B-Instruct on HumanEval coding tasks.
Table with columns: Model, Pass@1| Model | Pass@1 |
|---|
| Base Qwen2.5-Coder-3B | 61.0% |
| VCoder | 68.0% |
Improvement
This demonstrates that the fine-tuned model performs better on Python coding tasks than the original base model.
Example Usage
Python
prompt = """### Instruction:Write a Python function to reverse a string. ### Input: ### Response:"""
Example Output
def reverse_string(text): return text[::-1]
Supported Tasks
- Python Code Generation
- Algorithm Design
- Data Structures
- Debugging
- Code Refactoring
- Coding Interview Questions
- Competitive Programming
- Function Completion
GGUF Usage
Compatible with:
- Ollama
- LM Studio
- llama.cpp
Training Dataset
Dataset used:
Python Code Instructions 15K
The dataset contains instruction-response pairs focused on Python programming tasks including:
- Function generation
- Data manipulation
- Algorithms
- Debugging
- Problem solving
Limitations
- Primarily optimized for Python.
- Benchmark performed on a subset of HumanEval tasks.
- May generate incorrect code for highly specialized domains.
- Should not be used as the sole source of production-critical code.
Acknowledgements
- Qwen Team for Qwen2.5-Coder
- Unsloth for efficient fine-tuning
- Hugging Face
- OpenAI HumanEval Benchmark
Citation
@misc{vcoder2026, title={VCoder: Python Code Generation Model}, author={Varunesh V, Prawin R K, Sarguru N}, year={2026}, base_model={Qwen2.5-Coder-3B-Instruct}}
Github : https://github.com/sarguru16
Mail : sarguru1609@gmail.com