Azure & Cloud
August 28, 2026Azure Assistants API retired: migrating to Foundry Agents
The Azure OpenAI Assistants API reached its retirement date on 26 August 2026, and the classic Foundry Agent Service it underpins retires 31 March 2027. A step-by-step migration guide to the new Foundry Agent Service on the Responses API: threads become conversations, runs become responses, assistants become versioned agents, and Microsoft's migration tool rewrites code but not stored state.
Azure OpenAI
Assistants API
Foundry Agent Service
Responses API
Migration
AI Agents
Microsoft Foundry
Azure
GDPR
By Technspire Team