Overview

• The assistant suggests at least three rewrites with selectable tones including rephrase, professional, funny, supportive and proofread, accessible via a new pencil icon in any chat.
• Initial availability is English-only for users in the United States and select countries, with broader language and regional support planned later this year.
• Meta says requests are processed through Private Processing with encrypted, anonymous handling and without scanning conversation history.
• The feature is optional and off by default, operates only on the text currently in the input field, and recipients are not notified when AI assistance is used.
• Meta cites independent audits by NCC Group and Trail of Bits and is positioning the tool as an in-app alternative to external AI services like ChatGPT.