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2h ago

Microsoft Debuts First In‑House AI Models as MAI‑1‑Preview Enters Public Testing

The shift points to a cost-focused strategy that brings core AI closer to Copilot.

MAI Voice
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Overview

  • Microsoft introduced MAI‑Voice‑1 for speech and MAI‑1‑preview for text, its first models trained end to end in house.
  • MAI‑Voice‑1 generates a minute of audio in under one second on a single GPU and is already powering Copilot Daily and Podcasts, with tryouts in Copilot Labs.
  • MAI‑1‑preview, a mixture‑of‑experts model refined using about 15,000 Nvidia H100 GPUs, is being evaluated on LMArena and ranked 13th for text tasks on Thursday.
  • Select Copilot text use cases will start using MAI‑1‑preview in the coming weeks, and developers can request early access through a trusted‑tester program.
  • Microsoft highlights efficiency and tighter product integration, says its GB200 cluster is operational, and frames the move as diversification alongside an ongoing OpenAI partnership.