Drafting executive correspondence, customer support replies, or technical documentation frequently demands fine-tuning vocabulary, checking nuanced grammar rules, and distilling sprawling message threads into actionable summaries. While cloud-based generative AI tools require copying sensitive text into external web forms, Apple integrates generative text intelligence natively across the operating system canvas. In macOS Sequoia 15.1 and later, Apple Intelligence Writing Tools are embedded system-wide, allowing users to rewrite, proofread, summarize, and format text inside almost any native or third-party macOS app.
Hardware and System Requirements
Apple Intelligence Writing Tools operate via on-device foundation models processed by the Apple Neural Engine:
- Hardware: Any Mac computer equipped with Apple Silicon (M1, M2, M3, M4 chips or higher). Intel-based Macs are not supported.
- Operating System: macOS Sequoia 15.1 or later.
- System Language: Device and Siri language set to English (US) during initial rollout, with international locales expanding across updates.
Enabling Apple Intelligence in System Settings
To initialize on-device foundation models:
- Open System Settings on your Mac.
- In the left sidebar, click Apple Intelligence & Siri.
- Toggle Apple Intelligence to On.
- If joining the feature rollout, click Join the Apple Intelligence Waitlist; on-device model weights typically download within minutes over Wi-Fi.
Accessing Writing Tools in Any Mac Application
Writing Tools work seamlessly in native apps (Mail, Notes, Pages, Safari) as well as third-party editors (Slack, Word, Notion):
- Highlight the text you want to analyze or refine.
- Right-click (or control-click) the highlighted text and select Writing Tools from the contextual menu.
- Alternatively, press the global keyboard shortcut Cmd + Shift + W (or click the floating Apple Intelligence indicator).
Mastering Proofreading, Rewrite Tones, and Transformations
The Writing Tools palette offers distinct functional capabilities:
- Proofread: Audits spelling, punctuation, grammar, and word choice errors. It displays changes inline with color-coded diff suggestions that you can accept individually or apply globally in one click.
- Rewrite: Rephrases text while preserving original meaning to enhance sentence flow.
- Adjust Tone:
- Professional: Replaces colloquial phrases with polished corporate vocabulary.
- Friendly: Warms greeting phrasing for casual team correspondence.
- Concise: Trims unnecessary modifiers and redundant sentences to deliver punchy communication.
- Summarize & Format:
- Summary: Condenses long articles or email chains into a concise executive overview.
- Key Points: Extracts actionable bullet points.
- List / Table: Converts comma-separated or unformatted textual items into clean, structured Markdown or HTML tables.