OpenAI Agents API: US-only residency, your Azure options
OpenAI's Agents API, in public beta since 10 September, packages the Codex harness as a managed runtime with no platform fee, but its documentation limits data residency to the United States and rules out zero data retention even with a self-hosted sandbox. A side-by-side with Claude Managed Agents and Foundry hosted agents, with Sweden Central retail rates, shows runtime cost is a rounding error and residency and identity decide the choice.
Azure 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.
Agent Framework Harness GA: build or buy your agent loop
Microsoft's Agent Framework Harness and Foundry Hosted Agents reached general availability in early August 2026, wrapping models with function invocation, context compaction, planning, memory, tool approvals and OpenTelemetry in a runtime that runs locally, in containers, or consumption-billed on Foundry. A decision framework for Azure teams weighing the GA runtime against a hand-rolled agent loop, with cost levers and the Swedish compliance picture.