Microsoft Build 2026: MAI models + Copilot becomes multi-model

(June 2–3) — Microsoft shipped its own MAI family, including MAI-Code-1-Flash (code generation) and MAI-Thinking-1 (reasoning, low token cost), and rebuilt Copilot to route work across OpenAI, Anthropic, and open-source models. The Windows Agent Framework hit production. Why it matters: cheaper first-party coding/reasoning models and explicit model-routing reduce lock-in and give devs more deployment options.

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Sources: CNBC · Tom's Guide live blog