136 lines
5.0 KiB
Markdown
136 lines
5.0 KiB
Markdown
---
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library_name: transformers
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license: apache-2.0
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base_model: Qwen/Qwen3-4B
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pipeline_tag: text-generation
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language:
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- bn
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- en
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tags:
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- math
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- bengali
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- reasoning
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- sft
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datasets:
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- dipta007/Ganit
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---
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# GanitLLM-4B_SFT
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<p align="center">
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<a href="https://arxiv.org/abs/2601.06767">
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<img src="https://img.shields.io/badge/%F0%9F%94%A5_Accepted_at-ACL_2026_(Findings)_%F0%9F%94%A5-b12a00?style=for-the-badge&labelColor=ffb300" alt="Accepted at ACL 2026 (Findings)">
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</a>
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</p>
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[](https://arxiv.org/abs/2601.06767)
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[](https://arxiv.org/abs/2601.06767)
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[](https://dipta007.github.io/GanitLLM/)
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[](https://huggingface.co/datasets/dipta007/Ganit)
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[](https://huggingface.co/collections/dipta007/ganitllm)
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[](https://github.com/dipta007/GanitLLM)
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## Highlights
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**GanitLLM-4B_SFT** is a Bengali mathematical reasoning model trained with Supervised Fine-Tuning on the GANIT dataset. This model serves as the foundation for further RL training (GRPO/CGRPO). Key improvements over the base Qwen3-4B model:
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- **+4.80 accuracy** on Bn-MGSM benchmark (69.20 → 74.00)
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- **+4.10 accuracy** on Bn-MSVAMP benchmark (70.50 → 74.60)
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- **86.65% Bengali reasoning** (vs 14.79% for base model)
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- **80.5% fewer words** in generated solutions (943 → 184 words)
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> **Note**: This is the SFT-only checkpoint. For best results, use the RL-enhanced versions: [GanitLLM-4B_SFT_CGRPO](https://huggingface.co/dipta007/GanitLLM-4B_SFT_CGRPO) or [GanitLLM-4B_SFT_GRPO](https://huggingface.co/dipta007/GanitLLM-4B_SFT_GRPO).
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## Model Overview
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| Property | Value |
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|----------|-------|
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| **Model Type** | Causal Language Model |
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| **Base Model** | Qwen/Qwen3-4B |
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| **Parameters** | 4B |
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| **Training** | Supervised Fine-Tuning |
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| **Context Length** | 4,096 tokens |
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| **Language** | Bengali, English |
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## Training Details
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This model was trained with a single-stage pipeline:
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1. **Supervised Fine-Tuning (SFT)**: Trained on GANIT-SFT (~11k examples) to ground reasoning in Bengali
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### Training Data
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- **Dataset**: GANIT-SFT (11,023 examples)
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- **Format**: Bengali math problems with chain-of-thought reasoning
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- **Structure**: `<think>` tags for reasoning, `<answer>` tags for final answer
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## Quickstart
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```python
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from transformers import AutoModelForCausalLM, AutoTokenizer
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model_name = "dipta007/GanitLLM-4B_SFT"
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tokenizer = AutoTokenizer.from_pretrained(model_name)
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model = AutoModelForCausalLM.from_pretrained(
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model_name,
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torch_dtype="auto",
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device_map="auto"
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)
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problem = "একটি দোকানে ১২টি আপেল আছে। যদি ৫টি আপেল বিক্রি হয়, তাহলে কতটি আপেল বাকি থাকবে?"
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prompt = f"""A conversation takes place between the user and the assistant. The user asks a question, and the assistant solves the problem. Please reason step by step in Bengali, and put your final answer in the <answer> </answer> tags.
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Question: {problem}"""
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messages = [{"role": "user", "content": prompt}]
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text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
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model_inputs = tokenizer([text], return_tensors="pt").to(model.device)
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generated_ids = model.generate(**model_inputs, max_new_tokens=2048, temperature=0.7)
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output_ids = generated_ids[0][len(model_inputs.input_ids[0]):].tolist()
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response = tokenizer.decode(output_ids, skip_special_tokens=True)
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print(response)
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```
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### Using vLLM
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```bash
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vllm serve dipta007/GanitLLM-4B_SFT --max-model-len 4096
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```
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## Performance
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| Model | Bn-MGSM | Bn-MSVAMP | Avg. Words | Bengali % |
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|-------|---------|-----------|------------|-----------|
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| Qwen3-4B (base) | 69.20 | 70.50 | 943 | 14.79% |
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| **GanitLLM-4B_SFT** | **74.00** | **74.60** | **184** | **86.65%** |
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## Related Models
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| Model | Parameters | Training | Link |
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|-------|------------|----------|------|
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| GanitLLM-4B_SFT_CGRPO | 4B | SFT + CGRPO | [Link](https://huggingface.co/dipta007/GanitLLM-4B_SFT_CGRPO) |
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| GanitLLM-4B_SFT_GRPO | 4B | SFT + GRPO | [Link](https://huggingface.co/dipta007/GanitLLM-4B_SFT_GRPO) |
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| **GanitLLM-4B_SFT** | 4B | SFT | [Link](https://huggingface.co/dipta007/GanitLLM-4B_SFT) |
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| GanitLLM-4B_CGRPO | 4B | CGRPO | [Link](https://huggingface.co/dipta007/GanitLLM-4B_CGRPO) |
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## Citation
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```bibtex
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@inproceedings{dipta2026ganitllm,
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title={GanitLLM: Difficulty-Aware Bengali Mathematical Reasoning through Curriculum-GRPO},
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author={Shubhashis Roy Dipta and Khairul Mahbub and Nadia Najjar},
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booktitle={Findings of the Association for Computational Linguistics: ACL 2026},
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year={2026},
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eprint={2601.06767},
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archivePrefix={arXiv},
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primaryClass={cs.CL},
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url={https://arxiv.org/abs/2601.06767},
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}
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```
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## License
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This model is released under the Apache 2.0 License.
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