Update your Mac to macOS Sequoia or later
Make sure your Mac supports Apple Intelligence
Set your device language to a supported language
Open System Settings
Click Apple Intelligence & Siri
Turn on Apple Intelligence
Sign in with your Apple ID if prompted
Connect to Wi-Fi and keep your Mac plugged in if needed
Use Writing Tools in apps to rewrite, proofread, or summarize text
Use Siri for voice or typed requests
Use Mail to summarize messages and draft replies
Use Notes to summarize or rewrite content
Use system-wide features where Apple Intelligence appears in supported apps
Keep your Mac updated for new Apple Intelligence features