Overview

• The feature offers rewrite suggestions, grammar corrections, and tone options such as professional, humorous, supportive, clear, or correction-focused.
• A pencil icon in the message composer invokes Meta AI, which returns at least three alternative phrasings for users to select.
• Initial availability is in English for the United States and select countries, with broader language and regional expansion planned later in 2025.
• The tool is disabled by default and must be turned on in settings, works in individual and group chats, and recipients do not see an AI-edited label.
• Meta says processing uses its Private Processing system without storing conversation history and cites audits by NCC Group and Trail of Bits.