Rolling out
Microsoft Copilot (Microsoft 365)
Worldwide (Standard Multi-Tenant)
GCC
GCC High
DoD
General Availability
Desktop
Web
December 2025
Description
The Model Selector in Microsoft 365 Copilot 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, Quick response - answers right away, Think deeper - Thinks longer for better answers.
Change History
December 18, 2025 at 2:00 AM
Updated
Status
Previous
In development
New
Rolling out
Cloud Instances
Previous
Worldwide (Standard Multi-Tenant)
New
Worldwide (Standard Multi-Tenant), GCC, GCC High, DoD
Modified Date
Previous
2025-12-04T00:00:38.000Z
New
2025-12-18T00:15:48.000Z
December 4, 2025 at 2:00 AM
Updated
Title
Previous
Microsoft Copilot (Microsoft 365): GPT-5 Model Selector
New
Microsoft Copilot (Microsoft 365): Model Selector in Microsoft 365 Copilot
Description
Previous
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.
New
The Model Selector in Microsoft 365 Copilot 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, Quick response - answers right away, Think deeper - Thinks longer for better answers.
Modified Date
Previous
2025-11-21T23:15:16.000Z
New
2025-12-04T00:00:38.000Z
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