Anthropic Ships Claude GA in Microsoft Foundry on Azure — Opus 4.8 and Haiku 4.5 in the Messages API
Anthropic / Releasebot·high signal
On June 29, Anthropic made Claude generally available inside Microsoft Foundry on Azure, exposing Claude Opus 4.8 and Haiku 4.5 through the Messages API with Azure-native identity, billing, governance, and optional US data-zone support. It offers a hosted-on-Azure path so enterprises can run Claude entirely within their Azure environment. This puts Anthropic's frontier and fast tiers directly in front of Azure-committed enterprises, a notable distribution win against OpenAI's home-turf cloud.