Microsoft Copilot (Microsoft 365): Support for summarization of very long documents

Copilot in Word can summarize documents up to about 1,500,000 words or 3,000 pages. This summary will be available on top of the document.

Affected: Microsoft Copilot (Microsoft 365), Word

Related changes

• Microsoft Copilot (Microsoft 365): Automatic summary of documents on file-open in Word · Documents
• Microsoft Copilot (Microsoft 365): Updated UI for Copilot Chat entry point in Word, Excel and PowerPoint apps · Word
• Microsoft Copilot (Microsoft 365): Use voice for Q&A during Read Aloud in Word · Word
• Microsoft Copilot (Microsoft 365): Referenced sources are cited in drafted content · Microsoft Copilot (Microsoft 365)
• Microsoft Purview: Data Loss Prevention to prevent Microsoft 365 Copilot processing content with sensitivity labels supports all storage locations · Word
• Microsoft Copilot (Microsoft 365): Agent Mode in Word for Enhanced document editing · Word

View at Microsoft → Copy summary