Microsoft Ignite 2025: Microsoft Foundry - The Unified Enterprise AI Platform

I was at Microsoft Ignite for the Foundry announcements, and the framing runs ahead of the substance. Microsoft rebranded most of its Azure AI stack as Microsoft Foundry: one PaaS spanning models, agents, tools, knowledge, and governance. Underneath the launch-day gloss, three things actually matter to anyone shipping enterprise agents.

Agent identity got real. Entra Agent ID¹ gives every agent its own identity instead of a shared service principal, and the new Foundry Control Plane² hangs governance off it: per-agent RBAC, input/output/tool-call guardrails, and OpenTelemetry tracing across Microsoft Agent Framework, LangGraph, and the OpenAI Agents SDK. If you have watched non-human identities sprawl into ungoverned secrets, this is the piece to pilot first.

Claude landed on Azure. Anthropic’s models³ now run in Foundry with unified Azure billing and enterprise controls. For teams that wanted Claude but were blocked by procurement or data-residency rules, that removes the main objection: no separate vendor, same tenant, same billing.

APIM became the AI Gateway. Azure API Management⁴ now sits in front of model, agent, and MCP-tool traffic as one policy and observability choke point. It is the least flashy announcement and the one I would build on, because it is the difference between per-agent security sprawl and a single enforced boundary.

What I would not do yet: rip out working orchestration to move onto Foundry Agent Service, or take Foundry IQ’s “36% better relevance than traditional RAG” at face value. That number is Microsoft’s own benchmark on its own retrieval engine. Model Router reaching GA is genuinely useful; treat the rest of the 1,900-model catalog as previews until you have run your own evals.

The Microsoft Agent Framework (Semantic Kernel and AutoGen merged into one open-source SDK) is worth tracking on its own, since it is where the .NET and Python agent stories consolidate.

References

1. Entra Agent ID — learn.microsoft.com ↩

2. Foundry Control Plane — learn.microsoft.com ↩

3. Anthropic’s models — azure.microsoft.com ↩

4. Azure API Management — learn.microsoft.com ↩

5. Ignite 2025 next-steps repo — github.com ↩