Use for first drafts inside the M365 fence; expect to rewrite every paragraph.
Inline AI inside Word: draft a document from a prompt, rewrite selected text, restructure sections, adjust tone, and (from April 2026) operate in Agent Mode where Copilot performs multi-step edits while explaining each step.
Default prose is corporate mush, needs voice editing every time. Long documents lose coherence past about eight pages. Cannot match Claude or ChatGPT for genuinely good long-form writing.
Included in Microsoft 365 Copilot (paid). Not available to unpaid users since 15 April 2026.