adityakum667388/lumichats_v1.3_11b_vision

LumiChats-Llama-3.2-11B-Vision-Instruct-4bit

A Specialized Radiology Assistant Fine-Tuned by LumiChats

LumiChats - Premium AI at Coffee Prices

🚀 Model Overview

LumiChats-Llama-3.2-11B-Vision-Instruct-4bit is a specialized fine-tuned version of Meta's Llama 3.2 11B Vision Instruct model, optimized for radiology image analysis and medical report generation.

This model is built on top of the unsloth/Llama-3.2-11B-Vision-Instruct-bnb-4bit base model, leveraging Unsloth's 4-bit quantization for 60% memory reduction while maintaining high accuracy.

🔍 Key Capabilities

• Radiographic Image Analysis: Expert interpretation of panoramic radiographs, X-rays, and CT scans
• Medical Terminology: Precise use of clinical language and pathology descriptions
• Pathology Identification: Detects and describes osteolytic lesions, fractures, resorption patterns, and anatomical abnormalities
• Professional Report Generation: Outputs structured, clinically relevant descriptions suitable for medical documentation
• Multimodal Understanding: Combines visual analysis with contextual medical knowledge

🏢 About LumiChats

LumiChats is an AI-powered platform designed specifically for students, healthcare professionals, and researchers. We provide premium AI capabilities at accessible prices with a unique pay-per-day model.

💰 Our Pricing Model

• ₹69/day (pay only on active days)
• 5M tokens daily across 39+ models
• No subscriptions - cancel anytime
• 90% savings compared to traditional monthly subscriptions

🎯 Features

• Study Mode: Page-by-page PDF learning with custom quizzes
• Memory Control: Select specific knowledge bases to avoid topic mixing
• Image Analysis: Process medical images, diagrams, and visual data
• Multimodal AI: Switch between Claude, GPT-4, Gemini, and open-source models instantly

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🎯 Model Performance

Comparison: Base vs. Fine-Tuned

Aspect	Base Model (unsloth/Llama-3.2-11B-Vision-Instruct)	LumiChats Fine-Tuned Model
Accuracy	✅ Identifies image type (Panoramic Radiograph)	✅ Exact identification + precise pathology
Specificity	❌ Hallucinates details (fractures, misalignments)	✅ Focuses on ground truth (osteolytic lesion)
Medical Terminology	⚠️ General terms, some inaccuracies	✅ Professional clinical language
Output Length	📝 Long, speculative descriptions	📝 Concise, actionable reports
Clinical Relevance	❌ Includes irrelevant details	✅ Pathology-focused analysis

Example Output Comparison

Ground Truth Caption:
"Panoramic radiography shows an osteolytic lesion in the right posterior maxilla with resorption of the floor of the maxillary sinus (arrows)."

Base Model Output (Initial):
"Panoramic radiograph... left zygomatic bone... fracture... teeth lost... misalignment of the lower right lateral incisors..."
❌ Multiple hallucinations and irrelevant details

LumiChats Fine-Tuned Model Output:
"This panoramic X-ray demonstrates an extensive bony radiographic lesion affecting the right maxillary and zygomatic areas."
✅ Accurate, focused, and clinically relevant

⚙️ Technical Details

Model Architecture

• Base: meta-llama/Llama-3.2-11B-Vision-Instruct
• Quantization: 4-bit (Bitsandbytes) - 60% memory reduction
• Architecture: Auto-regressive transformer with multimodal vision encoder
• Parameters: 11B total
• Context Window: Extended for medical image-text alignment

Fine-Tuning Configuration

LoRA Adapter Settings

lora_r = 16
lora_alpha = 16
lora_dropout = 0.0

# Comprehensive layer fine-tuning
finetune_vision_layers = True      # Vision encoder layers
finetune_language_layers = True    # Language model layers
finetune_attention_modules = True  # Attention mechanisms
finetune_mlp_modules = True        # Feed-forward networks

Training Parameters

per_device_train_batch_size = 2
gradient_accumulation_steps = 4
max_steps = 30
learning_rate = 2e-4
optimizer = "adamw_8bit"
lr_scheduler = "linear"

Memory Efficiency

• Memory Reduction: 60% less than full precision
• Inference Speed: 2x faster than standard PyTorch
• GPU Requirements: Can run on Tesla T4 or consumer GPUs (RTX 3060+)
• Deployment: Compatible with vLLM, HuggingFace Transformers, and custom pipelines

🚀 Quick Start

Installation

pip install transformers torch accelerate bitsandbytes

Load Model

from transformers import AutoModelForCausalLM, AutoProcessor
import torch

model_id = "lumichats/LumiChats-Llama-3.2-11B-Vision-Instruct-4bit"

# Load with 4-bit quantization
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    torch_dtype=torch.bfloat16,
    device_map="auto",
    load_in_4bit=True,
    bnb_4bit_compute_dtype=torch.bfloat16
)

processor = AutoProcessor.from_pretrained(model_id)

Inference Example

import requests
from PIL import Image

# Load medical image
image_url = "https://example.com/panoramic_radiograph.jpg"
image = Image.open(requests.get(image_url, stream=True).raw)

# Prepare prompt
prompt = """You are an expert radiographer. Analyze this medical image and provide a professional clinical description focusing on pathology and anatomical findings."""

# Process
inputs = processor(text=prompt, images=image, return_tensors="pt")

# Generate
with torch.no_grad():
    outputs = model.generate(
        **inputs,
        max_new_tokens=150,
        do_sample=True,
        temperature=0.1,
        top_p=0.95,
        pad_token_id=processor.tokenizer.eos_token_id
    )

# Decode
response = processor.decode(outputs[0], skip_special_tokens=True)
print(response)

📊 Use Cases

Medical Applications

• Radiology Assistance: Preliminary analysis of X-rays, CT scans, MRIs
• Medical Education: Training students in radiological interpretation
• Clinical Documentation: Generating structured medical reports
• Teleradiology Support: Initial triage of imaging studies

Research & Development

• AI in Healthcare: Benchmarking medical vision-language models
• Multimodal Learning: Studying cross-modal understanding in medical contexts
• Fine-tuning Experiments: Base model for domain-specific adaptations

Educational Tools

• Student Training: Interactive learning with medical images
• Case Studies: Generation of detailed case descriptions
• Quiz Generation: Creating assessment materials from medical images

🏆 Why Choose LumiChats Models?

Advantages

1. Specialization: Fine-tuned specifically for radiology/medical imaging
2. Efficiency: 4-bit quantization for accessible deployment
3. Accuracy: Reduced hallucinations compared to general models
4. Professional: Uses appropriate medical terminology
5. Open Source: Free to use, modify, and deploy (Apache 2.0 compatible base)

Deployment Options

• Cloud: Use via LumiChats Platform for full features
• Local: Download and run on your own hardware (free forever)
• API: Integrate into medical workflows and applications
• Research: Use for academic and clinical research projects

📈 Model Statistics

• Downloads: 5,597 (last month)
• Model Size: ~4.2GB (4-bit quantized)
• Base Parameters: 11B
• Training Data: Medical imaging captions (radiology-specific)
• Languages: Multilingual (trained on English medical terminology)

🤝 Community & Support

For Researchers & Developers

• Discussion Tab: Ask questions, share results on HuggingFace
• GitHub: Report issues, contribute improvements
• Community Discord: Join our Discord Server

For Enterprise & Clinical Use

• Custom Fine-tuning: Request domain-specific adaptations
• Integration Support: Professional implementation assistance
• Compliance Guidance: Help with healthcare regulations (HIPAA, GDPR)

📜 License & Usage

License

• Base Model: Llama 3.2 Community License (Meta)
• Fine-tuned Model: Apache 2.0 (derived from base)
• Commercial Use: Permitted with attribution

Usage Guidelines

• Medical Disclaimer: This is a research tool, not a diagnostic device
• Professional Oversight: Always consult qualified healthcare professionals
• Regulatory Compliance: Ensure compliance with local healthcare regulations

🔄 Related Models & Resources

LumiChats Collection

• LumiChats-Llama-3.2-3B-4bit: Lightweight conversational model
• LumiChats-Qwen2.5-7B-4bit: Alternative architecture for comparison
• LumiChats-Gemma2-9B-4bit: Google's model fine-tuned for medical tasks

Alternative Implementations

• Unsloth Collection: Load 4bit models 4x faster
• Llama 3.2 Vision: Official Meta models
• Medical Vision Models: Collection of medical AI models

📞 Contact & Support

LumiChats Team
Email: support@lumichats.com
Website: https://lumichats.com
Twitter: @LumiChatsAI
Discord: Join Community

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📚 Citation

@misc{lumichats-llama32-vision-11b-4bit,
  author = {LumiChats Team},
  title = {LumiChats-Llama-3.2-11B-Vision-Instruct-4bit: A Specialized Radiology Assistant},
  year = {2024},
  publisher = {Hugging Face},
  howpublished = {\url{https://huggingface.co/lumichats/LumiChats-Llama-3.2-11B-Vision-Instruct-4bit}}
}

---

Last Updated: 2024-12-15
Model Version: 1.0.0
Base Model: unsloth/Llama-3.2-11B-Vision-Instruct-bnb-4bit