Microsoft has confirmed that its Copilot AI assistant now uses OpenAI’s GPT-5 language model for some users, marking a major upgrade to the company’s AI-powered productivity tools.
Microsoft has confirmed that it has added OpenAI’s GPT-5 language mode to its AI assistant Copilot.
The integration was announced in a blog post on Microsoft’s official site, stating that “some users may already be using GPT-5 in Copilot without even knowing it”.
The company did not disclose exactly how many users have access to the updated model, or when it will roll out more widely.
The move follows a recent pattern of Microsoft gradually introducing new OpenAI models into its ecosystem.
A Microsoft spokesperson told The Verge: “We are always working to bring the most capable models to our users. GPT-5 is now being used in Copilot for select scenarios.”
Copilot, which is embedded across Microsoft 365 apps like Word, Excel, and Outlook, is designed to assist users with writing, summarising, data analysis and more.
GPT-5, which is reportedly more reliable and reasoning-oriented than its predecessor GPT-4, is expected to improve Copilot’s performance in complex tasks.
Microsoft did not offer full technical specifications for GPT-5, but said it offers “significant advancements in accuracy, speed and contextual understanding”.
In the official announcement, Microsoft added: “The inclusion of GPT-5 helps deliver more nuanced and helpful responses, whether you’re drafting a document, analysing data or writing code.”
The update strengthens the relationship between Microsoft and OpenAI.
Microsoft has invested over $13 billion into the AI company and integrated its models deeply into both consumer and enterprise products.
It also places Microsoft ahead of rivals like Google, which is still deploying Gemini 1.5 in many of its tools.
With GPT-5 now active in parts of Copilot, Microsoft continues to push the boundaries of generative AI within the workplace.
Microsoft adds GPT-5 to Copilot
