Posted inAmazon Web Services
(Updated) Microsoft 365 Copilot: Declarative agents model upgrade to GPT-5.1 [MC1194070]
Message ID: MC1194070 (Updated) Updated January 15, 2026: We have updated the timeline. Thank you for your patience. [Introduction] Microsoft 365 Copilot declarative agents are upgrading to the GPT-5.1 model, which uses an “auto” architecture. The orchestrator will automatically select the…



![Learning Agent in Microsoft 365 Copilot to become generally available [MC1319212] 29 pexels agk42 2599244.bak](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-agk42-2599244.bak_.webp)
![Interact with your favorite apps on Teams using Slash ( / ) Commands [MC1319214] 30 woman 2101262 1920](https://mwpro.co.uk/wp-content/uploads/2025/06/woman-2101262_1920.webp)
![Microsoft Teams: In‑meeting toggle to turn Meeting AI on or off [MC1319216] 31 pexels fox 58267 15685976](https://mwpro.co.uk/wp-content/uploads/2025/06/pexels-fox-58267-15685976.webp)
![(Updated) Microsoft 365 Copilot: Declarative agents model upgrade to GPT-5.1 [MC1194070] 32 (Updated) Microsoft 365 Copilot: Declarative agents model upgrade to GPT-5.1 [MC1194070]](https://mwpro.co.uk/wp-content/uploads/2025/06/pexels-alfonso-escalante-1319242-2533092-1024x683.webp)

![Workers AI - Launching FLUX.2 [klein] 4B on Workers AI 34 Workers AI – Launching FLUX.2 [klein] 4B on Workers AI](https://mwpro.co.uk/wp-content/uploads/2025/06/pexels-digitalbuggu-171198-1024x683.webp)


