OpenAI's o1 reasoning model usually requires a costly subscription, but it's now free to all Microsoft Copilot users. This move follows a surge in popularity for Chinese AI app Deepseek and its free reasoning model earlier this week.

For example, Copilot (then called Bing AI) gained early access to GPT-4. Now, Microsoft allows Copilot users to access OpenAI’s o1 reasoning model for free. This is a pretty new model, only hitting the market last month.

Microsoft has added ChatGPT-o1 for all Copilot users, even on the free tier You'll find a new 'Think Deeper' button in Copilot to access it ChatGPT will be releasing the o3 reasoning model for free users in the coming days Mustafa Suleyman,

Microsoft is bringing OpenAI’s o1 reasoning model to all Copilot users this week. You won’t need to subscribe to a $20 monthly Copilot Pro or ChatGPT Plus plan to get it either, as Microsoft is making it free for all users of Copilot.

Microsoft is making its AI assistant, Copilot, more intelligent and accessible by integrating OpenAI's o1 reasoning model for all users-without requiring a paid subscription. Previously available only to Copilot Pro and ChatGPT Plus subscribers, this advanced AI reasoning model is now free for every Copilot user.

Originally launched as an experimental feature in Copilot Labs, Think Deeper is now enhanced with OpenAI’s o1 reasoning model, enabling the Copilot AI chatbot to deliver more comprehensive and well-reasoned responses.

OpenAI just released o3-mini, a reasoning model that’s faster, cheaper, and more accurate than its predecessor.

Thanks to OpenAI's o1, Microsoft Copilot is now capable of solving complex tasks, and provide users with well researched insights.