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7/19/2026
Building Production-Grade Semantic Search with GPT-5 and Microsoft Foundry, From Scratch

Building Production-Grade Semantic Search with GPT-5 and Microsoft Foundry, From Scratch

Short summary

A from-scratch tutorial for building production-grade semantic search using GPT-5 and Microsoft Foundry's Foundry IQ, an agentic retrieval layer on Azure AI Search. Foundry IQ treats retrieval as a reasoning task: it plans sub-queries, executes them in parallel, evaluates signal sufficiency, and iterates before synthesizing a cited answer. Knowledge bases expose MCP endpoints callable by any MCP-compatible client including Foundry agents and GitHub Copilot.

  • •Foundry IQ plans sub-queries, executes in parallel, and iterates before synthesizing cited answers
  • •Knowledge bases expose MCP endpoints accessible by any MCP-compatible client
  • •Extractive vs synthesis output modes trade cost for agent control over reasoning

Generated with AI, which can make mistakes.

#ai-tools#ai-agents#open-source
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