Copilot can summarize chat messages by providing a high-level overview and key takeaways from the conversation it is invoked from. Users can choose to summarize messages from the last 1, 7, or 30 days. Additionally, users can enter queries in free text, and Copilot will generate answers based on the chat history, addressing common inquiries such as decisions made or outstanding items.

No, Copilot in Teams does not share user data with third parties. It also does not use user data to train the model, ensuring that your information remains private.

While Copilot strives to provide accurate and informative responses based on available data, the answers may not always be precise. They are generated based on patterns and probabilities in language data, so it's advisable to use your judgment and verify facts before making decisions based on these responses.