MODEL SELECTION BLUEPRINT

TITLE: AI Model Selection Blueprint for Procurement Modernization

1. Business Need → 2. Model Category → 3. Model Choice → 4. Why

Contract Intelligence (Summaries, Redlining, Comparison)

• Model Type: High-reasoning LLM

• Preferred Model: Azure OpenAI (GPT-4o / GPT-4 Turbo)

• Why: Best accuracy, deterministic output, reliable compliance support.

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Policy Compliance, Governance & ESG Risk Evaluation

• Model Type: Long-context policy LLM

• Preferred Model: Anthropic Claude 3.5 Sonnet/Opus

• Why: Safest model, low hallucination, best large document understanding.

  
  

Invoice Automation & Document Intelligence (OCR + Reasoning)

• Model Type: Multimodal LLM

• Preferred Model: Google Gemini Flash/Pro

• Why: Best multi-modal capabilities (PDFs, images, forms).

  
  

High-Volume Classification (Spend Category, Supplier Tier, NER)

• Model Type: Small NLP models

• Preferred Model: HuggingFace Fine-Tuned Models

• Why: Cost efficient, very fast inference.

On-Prem, Sensitive, High-Volume GenAI

• Model Type: Self-hosted LLM

• Preferred Model: Llama 3 / Mistral on AKS

• Why: Zero data exposure, low cost, customizable.

Final Blueprint Principle

Right task → Right model → Right cost → Right guardrails (Responsible AI).