It runs on meta.ai, iOS/Android, WhatsApp/Instagram/Facebook surfaces, and as of August 19, 2026 a native Mac 1.0 beta with Option-Space Quick Invoke, systemwide dictation into the focused app, and window sharing for context (not computer control). Business opt-in can attach Instagram/Facebook, Meta Ads, and Google Workspace. Meta's privacy policy states that interactions with AI-at-Meta features are used to train models. Muse Code is a separate terminal coding agent.