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Medical LLM & VLM

Access production-ready medical large language models (LLMs) and vision-language models (VLMs) fine-tuned on clinical corpora for accurate healthcare AI applications.

Medical-Grade AI Models for Clinical Reasoning

Pre-trained LLMs and VLMs fine-tuned on medical literature, clinical notes, and radiology/pathology images for superior accuracy in healthcare contexts.


Overviewโ€‹

General-purpose LLMs like GPT-4 and Claude have broad knowledge but often hallucinate medical facts, confuse drug dosages, or misinterpret clinical terminology. Medical-specific models address these limitations through:

  • Domain-specific pre-training on PubMed, clinical guidelines, and medical textbooks
  • Fine-tuning on clinical tasks like diagnosis support, ICD coding, and clinical note generation
  • Specialized tokenization for medical terminology and abbreviations
  • Validation on clinical benchmarks (MedQA, PubMedQA, MIMIC-III)
  • Safety guardrails to prevent dangerous recommendations

Available Modelsโ€‹

๐Ÿฉบ

Clinical-GPT-7B

General Clinical Reasoning

  • 7B parameters, fine-tuned on MIMIC-III
  • Diagnosis support and differential generation
  • Clinical note summarization
  • Treatment recommendation analysis
  • MedQA accuracy: 67.8%
๐Ÿงฌ

BioMedLM-13B

Biomedical Literature & Research

  • 13B parameters, trained on PubMed abstracts
  • Scientific literature summarization
  • Clinical trial matching
  • Pharmacology and mechanism of action
  • PubMedQA accuracy: 72.3%
๐Ÿ“‹

Clinical-Coder-3B

Medical Coding & Documentation

  • 3B parameters, optimized for ICD/CPT coding
  • Automated ICD-10-CM/PCS assignment
  • CPT procedure code suggestion
  • DRG prediction
  • ICD coding F1: 0.89
๐Ÿ”ฌ

Radiology-VLM-8B

Medical Image Interpretation

  • 8B parameters, vision-language model
  • Chest X-ray, CT, MRI interpretation
  • Radiology report generation
  • Finding localization and measurement
  • MIMIC-CXR CheXpert F1: 0.82
๐Ÿงช

Pathology-VLM-12B

Histopathology Analysis

  • 12B parameters, trained on WSI datasets
  • Tumor classification and grading
  • Biomarker identification (ER, PR, HER2)
  • Pathology report generation
  • Tumor detection AUROC: 0.94
๐Ÿ’ฌ

Patient-Facing-LLM-7B

Patient Communication & Education

  • 7B parameters, trained on patient education materials
  • Translates medical jargon to layman terms
  • Medication instruction generation
  • Discharge summary simplification
  • Reading level: 6th-8th grade

Model Comparisonโ€‹

When to Use Each Modelโ€‹

๐Ÿ“Š Clinical Reasoning Tasks

Recommended: Clinical-GPT-7B

Diagnosis support, differential generation, treatment analysis, clinical decision support

๐Ÿ“š Literature Review & Research

Recommended: BioMedLM-13B

PubMed summarization, clinical trial matching, drug mechanism explanation, research hypothesis generation

๐Ÿฅ Medical Coding & Billing

Recommended: Clinical-Coder-3B

ICD-10 code assignment, CPT code suggestion, DRG prediction, coding validation

๐Ÿ–ผ๏ธ Radiology Imaging

Recommended: Radiology-VLM-8B

X-ray/CT/MRI interpretation, finding localization, report generation, image-based triage

๐Ÿ”ฌ Pathology Analysis

Recommended: Pathology-VLM-12B

Histopathology classification, tumor grading, biomarker identification, slide-level diagnosis

๐Ÿ‘ฅ Patient Communication

Recommended: Patient-Facing-LLM-7B

Patient education, discharge instructions, medication explanations, symptom assessment chatbots


API Usageโ€‹

Text Generation with Medical LLMsโ€‹

Endpoint: POST /v1/models/{model_id}/generate

Request:

{
"model": "clinical-gpt-7b",
"prompt": "A 65-year-old male presents with sudden onset severe chest pain radiating to the left arm, diaphoresis, and nausea. Vital signs: BP 160/95, HR 110, SpO2 94% on room air. ECG shows ST-segment elevation in leads II, III, and aVF. What is the most likely diagnosis and immediate management?",
"max_tokens": 500,
"temperature": 0.3,
"top_p": 0.9,
"stop_sequences": ["\n\n"]
}

Response:

{
"model": "clinical-gpt-7b",
"generated_text": "Most Likely Diagnosis: Acute Inferior Wall ST-Elevation Myocardial Infarction (STEMI)\n\nImmediate Management:\n1. Activate cardiac catheterization lab for emergent PCI (door-to-balloon time <90 minutes)\n2. Administer dual antiplatelet therapy: Aspirin 324mg PO + Ticagrelor 180mg PO or Prasugrel 60mg PO\n3. Anticoagulation: Heparin bolus 60 units/kg (max 4000 units) followed by infusion 12 units/kg/hr\n4. Oxygen if SpO2 <90% (currently 94%, so supplemental O2 PRN)\n5. Nitroglycerin sublingual 0.4mg if systolic BP >90mmHg (caution: inferior MI may have RV involvement - check right-sided leads)\n6. Morphine 2-4mg IV for pain relief\n7. High-intensity statin: Atorvastatin 80mg PO\n8. Beta-blocker: Metoprolol 25-50mg PO once hemodynamically stable\n\nNote: Given inferior wall STEMI, obtain right-sided ECG (V3R, V4R) to assess for RV infarction, which would contraindicate nitrates and require aggressive fluid resuscitation.",
"finish_reason": "stop",
"usage": {
"prompt_tokens": 89,
"completion_tokens": 247,
"total_tokens": 336
}
}

Vision-Language Model (VLM) Usageโ€‹

Endpoint: POST /v1/models/{model_id}/analyze_image

Request:

{
"model": "radiology-vlm-8b",
"image": "base64_encoded_chest_xray_image_data_here...",
"prompt": "Describe all findings in this chest X-ray and provide a structured radiology report.",
"temperature": 0.2,
"max_tokens": 400
}

Response:

{
"model": "radiology-vlm-8b",
"analysis": {
"findings": [
{
"finding": "Right lower lobe opacity",
"location": {"x": 420, "y": 380, "width": 85, "height": 95},
"confidence": 0.89,
"severity": "moderate"
},
{
"finding": "Blunting of right costophrenic angle",
"location": {"x": 450, "y": 520, "width": 60, "height": 40},
"confidence": 0.76,
"severity": "mild"
}
],
"report": "FINDINGS:\n\n1. Right lower lobe opacity measuring approximately 8.5 x 9.5 cm, concerning for pneumonia vs. atelectasis\n2. Mild blunting of the right costophrenic angle, suggesting small pleural effusion\n3. Cardiac silhouette within normal limits\n4. No pneumothorax identified\n5. Visualized bony structures unremarkable\n\nIMPRESSION:\n1. Right lower lobe opacity, most consistent with community-acquired pneumonia. Small right pleural effusion.\n2. Recommend clinical correlation and follow-up imaging after treatment to ensure resolution.\n\nRECOMMENDATIONS:\nConsider lateral view or CT chest if clinically indicated for further characterization."
},
"usage": {
"prompt_tokens": 1250,
"completion_tokens": 178,
"total_tokens": 1428
}
}

Model Parametersโ€‹

Temperatureโ€‹

Controls randomness in output. Lower = more deterministic, higher = more creative.

Recommendations:

  • 0.1-0.3: Clinical decision support, diagnosis, coding (high accuracy needed)
  • 0.5-0.7: Clinical note generation, patient education (balance accuracy and variety)
  • 0.8-1.0: Creative tasks like patient education content generation (NOT recommended for clinical reasoning)

Top-P (Nucleus Sampling)โ€‹

Alternative to temperature. Considers only the most probable tokens whose cumulative probability exceeds p.

Recommendations:

  • 0.9: Default for most clinical tasks
  • 0.95: When you want slightly more diverse outputs
  • 0.85: When you need very focused, conservative outputs

Max Tokensโ€‹

Maximum length of generated response.

Recommendations:

  • 100-200: Short answers (yes/no, simple coding tasks)
  • 300-500: Standard clinical reasoning or report generation
  • 800-1000: Long-form documentation (discharge summaries, consultation notes)

Stop Sequencesโ€‹

Tokens that terminate generation early.

Common medical stop sequences:

  • ["\n\n", "---", "END OF REPORT"] for structured reports
  • ["Patient:", "ADDENDUM:"] to prevent model from generating additional sections

Prompt Engineering for Medical LLMsโ€‹

Zero-Shot Promptingโ€‹

Basic prompt without examples:

Prompt: "What is the first-line treatment for uncomplicated urinary tract infection in a non-pregnant adult female?"

Response: "First-line treatment for uncomplicated UTI in non-pregnant women:
- Nitrofurantoin 100mg BID x 5 days, OR
- Trimethoprim-sulfamethoxazole DS BID x 3 days (if local resistance <20%), OR
- Fosfomycin 3g single dose

Avoid fluoroquinolones as first-line due to resistance and side effect concerns."

Few-Shot Promptingโ€‹

Provide examples to guide the model:

Prompt: "Convert clinical notes to ICD-10 codes:

Example 1:
Note: 'Patient has poorly controlled Type 2 Diabetes with diabetic retinopathy'
Codes: E11.65 (Type 2 diabetes with hyperglycemia), E11.319 (Type 2 diabetes with unspecified diabetic retinopathy)

Example 2:
Note: 'Acute exacerbation of COPD, admitted for IV steroids and oxygen'
Codes: J44.1 (COPD with acute exacerbation), J44.0 (COPD with acute lower respiratory infection)

Now code this note:
Note: 'Patient with hypertensive heart disease and chronic kidney disease stage 3'"

Response: "I13.2 (Hypertensive heart and chronic kidney disease with heart failure and with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease), N18.3 (Chronic kidney disease, stage 3)"

Chain-of-Thought Promptingโ€‹

Ask the model to explain its reasoning:

Prompt: "A 28-year-old pregnant woman at 32 weeks gestation presents with right upper quadrant pain, headache, and blurred vision. Labs show platelets 85,000, AST 250, ALT 220, LDH 600. Let's think through this step-by-step to reach a diagnosis."

Response: "Step 1: Identify key clinical features
- Pregnant at 32 weeks (third trimester)
- RUQ pain + neurological symptoms (headache, blurred vision)
- Thrombocytopenia (platelets <100,000)
- Elevated liver enzymes (transaminitis)
- Elevated LDH (marker of hemolysis)

Step 2: Recognize the syndrome
This constellation suggests a hypertensive disorder of pregnancy with end-organ damage.

Step 3: Apply diagnostic criteria
The combination of:
- Hemolysis (elevated LDH)
- Elevated Liver enzymes (AST/ALT >2x normal)
- Low Platelets (<100,000)

...fits the HELLP syndrome criteria.

Diagnosis: HELLP Syndrome (variant of severe preeclampsia)

Immediate Management:
- Blood pressure check (likely elevated)
- Magnesium sulfate for seizure prophylaxis
- Corticosteroids for fetal lung maturity
- Plan for delivery (definitive treatment)"

Safety & Validationโ€‹

โš ๏ธ Clinical Validation Required

All model outputs must be reviewed by qualified healthcare professionals before clinical use. Models are decision support tools, not autonomous decision makers.

๐Ÿšซ Hallucination Detection

Models include confidence scores for factual claims. Outputs with low confidence (<0.7) are flagged for human review.

๐Ÿ“Š Performance Monitoring

Continuous monitoring of model accuracy on held-out test sets. Models are retrained quarterly with updated medical knowledge.

๐Ÿ”’ Safety Guardrails

Models refuse to provide advice on life-threatening emergencies ("Call 911"), controlled substances without context, or experimental treatments.


Performance Benchmarksโ€‹

Clinical Reasoning (Clinical-GPT-7B)โ€‹

BenchmarkAccuracyNotes
MedQA (USMLE-style)67.8%4-way multiple choice medical questions
PubMedQA71.2%Answering questions from PubMed abstracts
MIMIC-III Diagnosis73.5%Predicting primary diagnosis from clinical notes

Medical Coding (Clinical-Coder-3B)โ€‹

TaskF1 ScoreNotes
ICD-10-CM Assignment0.89Top-1 accuracy on diagnosis codes
CPT Code Suggestion0.82Procedure code prediction
DRG Classification0.91Medicare Severity-DRG assignment

Radiology (Radiology-VLM-8B)โ€‹

FindingAUROCDataset
Pneumonia0.87MIMIC-CXR
Pleural Effusion0.91CheXpert
Pneumothorax0.89NIH ChestX-ray14
Cardiomegaly0.85MIMIC-CXR

Integration with MCP Toolsโ€‹

Medical LLMs work seamlessly with MCP tools for agentic workflows:

Example: Automated Diagnosis Support Agent

# Pseudo-code for agent that combines LLM + MCP tools

1. User provides clinical note
2. Agent calls extract_clinical_entities (MCP tool) to identify symptoms, vitals
3. Agent calls Clinical-GPT-7B with structured data to generate differential diagnosis
4. Agent calls search_terminology (MCP tool) to get ICD-10 codes for each diagnosis
5. Agent calls check_drug_interactions (MCP tool) to validate proposed treatment
6. Agent returns formatted response with diagnosis + codes + treatment plan

Cost & Pricingโ€‹

๐Ÿ’ฐ Token-Based Pricing

All models are billed per 1,000 tokens (approximately 750 words):

  • Clinical-Coder-3B: $0.002 per 1K tokens
  • Clinical-GPT-7B: $0.006 per 1K tokens
  • BioMedLM-13B: $0.012 per 1K tokens
  • Radiology-VLM-8B: $0.025 per image + $0.008 per 1K tokens
  • Pathology-VLM-12B: $0.050 per image + $0.015 per 1K tokens

Enterprise volume discounts available for >10M tokens/month.


Best Practicesโ€‹

๐Ÿ’ก Medical LLM Best Practices

  • Use medical-specific models: Don't use general LLMs for clinical tasks โ€“ medical models are 15-30% more accurate
  • Set low temperature: Use 0.1-0.3 for clinical reasoning to minimize hallucinations
  • Provide context: Include patient demographics, relevant history, and specific question for better responses
  • Validate outputs: Always have qualified clinicians review AI-generated diagnoses or treatment plans
  • Monitor confidence: Flag low-confidence outputs (<0.7) for additional human review
  • Combine with tools: Use MCP tools for structured data extraction, terminology lookup, and validation
  • Update regularly: Medical knowledge evolves โ€“ retrain or switch to updated model versions quarterly

Next Stepsโ€‹