Microsoft Copilot (Microsoft 365): GPT-5 Model Selector

Originally posted by Microsoft Nov 24, 2025 Uncategorized 0 Comments

GPT-5 Model selector gives users more control over reasoning depth, enabling automatic reasoning for simple tasks and explicit control when desired. The three modes that are supported as part of GPT-5 are: Auto (default) – system decides how long to think, Instant (chat) – fast responses, thinking (reasoning) – longer thinking for better answers.

Product
Release phase General Availability
Release date December CY2025
Platform Web
Cloud Instance Worldwide (Standard Multi-Tenant)
Created 2025-11-21
Roadmap ID 532736
Roadmap Link https://www.microsoft.com/microsoft-365/roadmap?id=532736

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Joao Ferreira

I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.

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