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Private LLM & Secure RAG


A focused guide series for regulated and GovCon teams who need enterprise AI over sensitive data without losing control of the model, retrieval path, cost, observability, or evidence. Start with what a private LLM is, compare it with RAG, then move into deployment, security, cost, retrieval, monitoring, and leakage controls. When you are ready to build, review GS Consulting's private LLM and secure RAG implementation service or the broader secure AI automation service.

Why This Series Matters

Private is not a product you buy. It is a set of controls and operating costs you can prove. This series helps leaders connect the model environment, RAG choice, deployment options, data path security, cost, observability, retrieval design, and leakage prevention into one defensible approach for CUI and other high value data.

Best Starting Point

What Is a Private LLM?

Start with the definition, then use the supporting guides to compare private LLM and RAG, choose a deployment option, secure the full data path, estimate operating cost, design observability, and keep controlled information out of the wrong lanes.

Read the Main Guide
01Define the control boundary

Understand what makes an LLM private, then control identity, data admission, retention, logs, response, and evidence.

02Choose and cost the operating pattern

Match on prem, self operated, dedicated, or managed lanes to the data duty, operating capacity, and full cost.

03Design secure retrieval

Build permission aware RAG so the model never sees content a user is not allowed to see.

04Observe and prevent leakage

Connect identity, sources, quality, cost, incidents, and recovery while keeping controlled information out of unapproved paths.

Featured Guides

Read the Private LLM & Secure RAG Series

Abstract representation of a private large language model running inside a controlled environment

Pillar Guide | Secure AI Automation

What Is a Private LLM?

A private LLM is not a product you switch on. It is a control decision. This guide explains what a private LLM is, when a private LLM is worth the effort, and the controls that make one defensible for regulated and GovCon work.

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Server infrastructure representing private LLM deployment options across on prem, self hosted, and cloud environments

Supporting Guide | Secure AI Automation

Private LLM Deployment Options

There is no single private LLM you can buy. There are deployment options, each trading control against cost. This guide compares on prem, self hosted, dedicated tenant, and zero retention lanes, and shows how to match the option to your data.

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Code on a monitor representing secure RAG architecture, enterprise retrieval, and controlled AI systems

Supporting Guide | Secure AI Automation

Secure RAG Architecture for GovCon

A practical guide to secure RAG architecture for GovCon teams that need enterprise AI over internal knowledge without breaking permissions, CUI boundaries, audit trails, or data controls.

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Artificial intelligence processor representing secure retrieval across enterprise data systems

Supporting Guide | Secure AI Automation

Secure RAG Design Patterns for Enterprise Data

Secure RAG is an access decision, not a vector database feature. This guide compares six enterprise patterns, shows where each one fits, and defines the evidence needed to prove retrieval stayed inside the user's authority.

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Secure laptop and network equipment representing controlled LLM data paths for CUI protection

Supporting Guide | Secure AI Automation

Preventing CUI Leakage in LLMs

A practical GovCon guide to keeping CUI out of unapproved LLM paths by controlling prompts, uploads, RAG, vector databases, logs, vendors, and downstream workflow tools.

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Need a private LLM your security team can approve?

GS Consulting helps regulated and GovCon teams classify data, choose deployment options, design secure RAG, prevent CUI leakage, and build the evidence packet assessors will ask for.

Explore Implementation Services Request a Private LLM Readiness Review

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