What’s new in Microsoft Foundry | February 2026
February brings Anthropic's Claude Opus 4.6 and Sonnet 4.6 with 1M-token context, GPT-Realtime-1.5 and GPT-Audio-1.5, Grok 4.0 GA, the Microsoft Agent Framework reaching Release Candidate, and the Foundry REST API v1 quietly going GA — laying the foundation for imminent SDK GA announcements across Python, .NET, JS/TS, and Java.