app.py

# Install required libraries
import subprocess
import sys

subprocess.check_call([sys.executable, "-m", "pip", "install", "unsloth", "peft", "bitsandbytes", "accelerate", "transformers"])


# Import necessary modules
from transformers import AutoTokenizer
from unsloth import FastLanguageModel

# Define the MedQA prompt
medqa_prompt = """You are a medical QA system. Answer the following medical question clearly and in detail with complete sentences.

### Question:
{}

### Answer:
"""

# Load the model and tokenizer using unsloth
model_name = "Vijayendra/Phi4-MedQA" 
model, tokenizer = FastLanguageModel.from_pretrained(
    model_name=model_name,
    max_seq_length=2048,
    dtype=None,  # Use default precision
    load_in_4bit=True,  # Enable 4-bit quantization
    device_map="auto"  # Automatically map model to available devices
)

# Enable faster inference
FastLanguageModel.for_inference(model)

# Prepare the medical question
medical_question = "What are the common symptoms of diabetes?"  # Replace with your medical question
inputs = tokenizer(
    [medqa_prompt.format(medical_question)],
    return_tensors="pt",
    padding=True,
    truncation=True,
    max_length=1024
).to("cuda")  # Ensure inputs are on the GPU

# Generate the output
outputs = model.generate(
    **inputs,
    max_new_tokens=512,  # Allow for detailed responses
    use_cache=True  # Speeds up generation
)

# Decode and clean the response
response = tokenizer.decode(outputs[0], skip_special_tokens=True)

# Extract and print the generated answer
answer_text = response.split("### Answer:")[1].strip() if "### Answer:" in response else response.strip()

print(f"Question: {medical_question}")
print(f"Answer: {answer_text}")