This tutorial will show you how to use the Think Deeper feature with your Copilot questions on Web, Windows 11, and Windows 10.
Microsoft Copilot is an AI-powered digital assistant designed to help you with a range of tasks and activities.
Think Deeper is available to all signed-in Copilot users.
Think Deeper is helpful to get answers to complex questions, even faster. Think Deeper’s reasoning model has been upgraded to OpenAI’s o3-mini (high). This means you’ll wait less to get answers. The updated reasoning model gives Think Deeper additional flexibility when tackling complex problems and improves its overall speed when providing responses.
References:

Announcing Free, Unlimited Access to Think Deeper and Voice | Microsoft Copilot Blog
We launched Copilot two years ago, focused on helping people access knowledge, get answers, reflect, brainstorm and create. As we continue to build your ultimate AI companion, today we’re excited to start rolling out even more powerful capabilities to all Copilot users with free, unlimited...

Release Notes: March 19, 2025 | Microsoft Copilot Blog
Welcome to Microsoft’s Copilot Release Notes. Here we’ll provide regular updates on what’s happening with Copilot, from new features to firmware updates and more. For the week of March 19th, 2025, here are the latest updates: Copilot Vision Think Deeper, now on o3-mini (high) Get answers to...
Here's How:
1 Open the copilot.microsoft.com site or Copilot app on Windows 10/11.
2 Sign in to Copilot with your Microsoft account if not already.
3 Click/tap on the Think Deeper button to toggle it on or off (default) as wanted. (see screenshots below)
4 If you turned on Think Deeper, you will now get that extra support from Copilot with your questions.
That's it,
Shawn Brink
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