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Platform Architecture Overview — What Is Microsoft Foundry?

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Platform Architecture Overview

🏭 What Is Microsoft Foundry? 7 min 50 BASE XP⌨ HANDS-ON LAB

The Foundry Architecture

Microsoft Foundry is a unified Platform-as-a-Service (PaaS) that brings together models, tools, data, agents, and governance under a single Azure resource provider (Microsoft.CognitiveServices).

Core Platform Layers

LayerPurposeExamples
Models11,000+ AI model catalog and deploymentGPT-6 Astra / Sol 6.1, Claude Opus/Sonnet, Llama 4, DeepSeek-R1, MAI & Phi-4
ToolsPre-built AI capabilities (formerly Cognitive Services)Vision, Speech, Document Intelligence, Translator
Data & GroundingConnect models to your dataAzure AI Search indexes, file uploads, databases
AgentsBuild and manage autonomous AI agentsAgent Service, Connected Agents, Multi-Agent Workflows
EvaluationMeasure quality, safety, and groundednessBuilt-in evaluators, adversarial simulation
GovernanceSecurity, compliance, and monitoringRBAC, content filters, tracing, Azure Policy

Resource Hierarchy

Azure Subscription
  └── Resource Group
       └── Foundry Resource (AIServices account — or Enterprise Hub for custom ML/VNet)
            ├── Project A (team workspace)
            │    ├── Model Deployments
            │    ├── Agents
            │    ├── Search Indexes
            │    └── Evaluations
            └── Project B (another team)
                 └── ...
💡 Key Insight: Modern GenAI and agent workloads use a streamlined Foundry Resource → Foundry Projects (Microsoft.CognitiveServices/accounts/projects) structure with no Hub required. For custom Azure ML training or strict enterprise Managed VNets, Hub-based Projects use an AI Hub container to centralize governance (RBAC, networking, policies) inherited by child Projects.
⌨ HANDS-ON LABInspect Foundry Hub Architecture via CLI
⭐ +150 XP

Query the top-level Microsoft Foundry Hub to inspect linked Key Vault, Storage, and AI Services.

1Show details of the default Foundry Hub workspace.
lab-sandbox — simulated environment
INFINITY LAB SANDBOX v2.6 — simulated shell
Type the command for the current objective. Helpers: "hint", "solution", "clear".
$
OBJECTIVE 1 / 1 — type "hint" if stuck
FOUNDRY VERIFICATION
QUERY 1 // 2
Under which Azure resource provider does Microsoft Foundry operate?
Microsoft.MachineLearning
Microsoft.CognitiveServices
Microsoft.OpenAI
Microsoft.AIFoundry