Given that Microsoft and OpenAI have close ties, the Redmond giant’s AI a**istant, Copilot, has had access to some of the most advanced AI models. However, some of these features are locked behind a payment plan, with Microsoft offering Copilot Pro for people who want more from their a**istants. Now, Microsoft has confirmed that Copilot’s GPT-4 Turbo model is officially free to use, meaning you don’t need a Copilot Pro plan to use it.