Nico is a personal AI agent for Apple-silicon Macs, designed to work directly with the user’s files, apps, email, calendar, browser, and current screen rather than on a remote computer. Users can hold the right Command key and speak from any app, drop in a file, or ask Nico to act on what is visible. It can summarize documents and emails, create spreadsheets or briefs, organize files, research websites, draft replies, and monitor inboxes, folders, calendars, or web pages for updates. It also aims to remember plans and personal details and bring them up when relevant. Voice input is intended to handle corrections and mid-sentence changes, while Nico can be interrupted during a response.
The system separates conversation from task execution: a responsive front agent interprets requests and reports progress, while a sandboxed Worker plans and carries out work, then checks its results. The front agent verifies consequential steps; sending messages, submitting payments, or deleting items requires approval. The Worker uses an AI account the user already has, supporting providers including ChatGPT, Claude, Gemini, and others. Nico’s privacy model keeps files, history, memories, and credentials on the Mac, and says voice requests are not retained; screen captures are temporary. The app is free to download, requires macOS 15.4 or later on Apple silicon, and needs microphone and input-monitoring permissions.
Summary generated by AI from the linked article. hn.today is not affiliated with Hacker News or Y Combinator.