Microsoft is bringing generative AI into its 365 apps, positioning Copilot as an assistant that can use workplace information to help with everyday tasks. The company also announced Business Chat, a way to ask questions across shared documents, calendars and other applications.
AI assistance across familiar apps
Microsoft 365 Copilot is intended to work inside Word, Excel, PowerPoint, Outlook and Teams. The company describes it as a combination of large language models, Microsoft 365 apps and the Microsoft Graph, which holds cloud data available to users.
In Word, a user could ask Copilot to draft a product announcement and provide an existing document or presentation as context. In PowerPoint, it can turn a press release into a presentation. In Excel, it can analyze data and respond to questions, such as which products were profitable in a quarter.
Outlook users can ask for a response that draws on another document they specify. In Teams, Copilot can summarize channel conversations and answer questions about them. For live meetings, it can provide an overview of what has been discussed, the points of view expressed by certain people, and questions that remain open.
Business Chat connects work information
Business Chat is a chatbot interface that can access information from shared documents, calendars and other applications. Microsoft demonstrated how a request such as “Prepare me for my meeting” could prompt it to gather material from different apps and return an overview.
The idea is to reduce the effort involved in collecting relevant work details from separate places. Instead of opening each source and assembling a briefing manually, a user can ask for a summary that draws on information available across those applications.
Microsoft is also connecting Copilot with Power Automate. The chatbot can be used to create automated workflows, extending the assistant’s role from producing text or summaries to helping users set up recurring processes.
How Microsoft says Copilot uses data
Microsoft says Copilot does not simply pass a user’s prompt directly to a language model. It first uses the request to find relevant information in Microsoft Graph, which can include appointments, chats, emails and documents. That material provides context for the prompt sent to the model.
After the model generates a response, Copilot matches it against Graph and checks it against security and privacy parameters, according to the company. Jared Spataro, CVP at Microsoft, said, “We didn't just link ChatGPT with Microsoft 365.”
This grounding in work data is intended to address some problems associated with large language models. Microsoft still expects errors, however, so responses and generated material may need review by the people using them.
Availability and responsibility
Microsoft said 365 Copilot would initially be available only to a select group of customers. The announcement therefore describes a direction for the product and its capabilities, while access remains limited for now.
Microsoft CEO Satya Nadella framed the launch around responsibility as well as capability. “Of course, with this empowerment comes greater human responsibility,” he said. He added, “As we move into this new area, all of us who develop, deploy and use AI have a collective obligation to do so responsibly.”
For organizations, the practical promise is assistance grounded in their own work information. The tradeoff is that users still need to judge whether a generated answer is accurate and appropriate, even when the system uses company data and applies security and privacy checks.