Microsoft 365 Roadmap - Get the Latest Updates 2025-09-23 01:00 Microsoft Copilot (Microsoft 365): GPT-5 in Agent Builder inside Microsoft 365 Copilot Original Save AI summary Fetch full text Add tag Add to board Notes No notes yet. Add note Highlights No highlights yet. Add highlight Create GPT-5-powered agents using Agent Builder inside Microsoft 365 Copilot. GA date: November CY2025