AliAbdelrasheed/maqa_llama_4bit

MAQA-LLaMA-4bit — Arabic Medical Q&A (4-bit GPU Inference)

⚠️ Disclaimer: This model is intended for research and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. It cannot and should not be used to prescribe or recommend medications.

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Model Summary

maqa_llama_4bit is the 4-bit GPU inference variant of the MAQA-LLaMA family — a Llama 3 8B model fine-tuned on 430,000 real Arabic doctor-patient interactions across 20 medical specialisations. Runs on consumer-grade GPUs with 6–8 GB VRAM.

Property	Value
Base model	unsloth/llama-3-8b-Instruct-bnb-4bit (Meta Llama 3 8B Instruct)
Fine-tuning method	QLoRA (via Unsloth)
Quantisation	4-bit (bitsandbytes, merged_4bit_forced)
Tensor types	F16 / F32 / U8
Model size	8B parameters
Language	Arabic 🇸🇦
License	Apache 2.0
Developed by	Ali Abdelrasheed

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Model Family

Model	Format	Size	Best for
maqa_llama	BF16 SafeTensors	~16 GB	Research / further fine-tuning
maqa_llama_4bit ← this model	4-bit bitsandbytes	~5 GB	✅ GPU inference
maqa_llama_4bit_GGUF	GGUF q4_k_m	4.92 GB	CPU / local deployment

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Quick Start

With Unsloth (recommended — 2x faster inference)

from unsloth import FastLanguageModel
from unsloth.chat_templates import get_chat_template
from transformers import TextStreamer

model, tokenizer = FastLanguageModel.from_pretrained(
    model_name = "AliAbdelrasheed/maqa_llama_4bit",
    max_seq_length = 2048,
    dtype = None,         # Auto-detect: Float16 for T4/V100, BFloat16 for Ampere+
    load_in_4bit = True,
)

tokenizer = get_chat_template(
    tokenizer,
    chat_template = "llama-3",
    mapping = {"role": "from", "content": "value", "user": "human", "assistant": "gpt"},
)

FastLanguageModel.for_inference(model)

messages = [
    {
        "from": "system",
        "value": "أنت طبيب محترف ولديك خبرة في كل مجالات الطب. يجيب على أسئلة المرضى حول الأمراض، باستخدام لهجة رسمية وودية، وإجابات موجزة ومفيدة يسهل على الجميع فهمها."
    },
    {
        "from": "human",
        "value": "أشعر بألم أسفل البطن بخاصرتي والألم يجي على فترات، ما الأسباب؟"
    },
]

inputs = tokenizer.apply_chat_template(
    messages,
    tokenize = True,
    add_generation_prompt = True,
    return_tensors = "pt",
).to("cuda")

streamer = TextStreamer(tokenizer)
_ = model.generate(
    input_ids = inputs,
    streamer = streamer,
    max_new_tokens = 256,
    use_cache = True,
)

With Transformers + bitsandbytes (no Unsloth required)

from transformers import AutoModelForCausalLM, AutoTokenizer

tokenizer = AutoTokenizer.from_pretrained("AliAbdelrasheed/maqa_llama_4bit")
model = AutoModelForCausalLM.from_pretrained(
    "AliAbdelrasheed/maqa_llama_4bit",
    load_in_4bit = True,
    device_map = "auto",
)

prompt = "ما هي أعراض مرض السكري من النوع الثاني وكيف يمكن التعامل معه؟"
inputs = tokenizer(prompt, return_tensors="pt").to("cuda")
outputs = model.generate(**inputs, max_new_tokens=256)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

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Dataset — MAQA

Property	Value
Total records	430,000 question-answer pairs
Columns	Patient question · Doctor diagnosis · Doctor treatment notes
Sources	altibbi.com · tbeeb.net · cura.healthcare
Specialisations	20 medical fields
Language	Modern Standard Arabic
Training split	70% train / 30% evaluation

Dataset: "Deep learning for Arabic healthcare: MedicalBot" — Springer (2023) Harvard Dataverse

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Training Details

LoRA Configuration

Hyperparameter	Value
LoRA rank (r)	16
LoRA alpha	32
LoRA dropout	0
Target modules	q_proj, k_proj, v_proj, o_proj, gate_proj, up_proj, down_proj
Gradient checkpointing	unsloth

Training Arguments

Hyperparameter	Value
Epochs	1
Batch size	52
Learning rate	2e-4
LR scheduler	Linear
Warmup steps	200
Optimiser	AdamW 8-bit
Max sequence length	2048
Training environment	Google Colab Pro

Full training details and notebook available on GitHub.

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Limitations

• Not a substitute for professional medical advice or clinical diagnosis
• Cannot prescribe or recommend medications
• Trained on a sampled subset of MAQA; performance may vary across all 20 specialisations
• Optimised for Modern Standard Arabic; dialectal Arabic performance may vary
• Web-scraped data may contain noise or outdated medical information

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Developed By

Ali Abdelrasheed — Graduation Project Nile University · B.Sc. Information Technology – Big Data · Class of 2024 🤗 HuggingFace Profile