Highlight AI is a desktop AI assistant for PC and Mac that enables users to interact with any app using voice and text commands. It offers local audio transcription for meetings, hands-free app control, and instant text summarization, translation, and analysis. Users can capture on-screen content for quick insights and customize responses based on personal preferences. It integrates with tools like GitHub, Notion, Slack, and Google Calendar for workflow automation. By grounding AI interactions in screen data, Highlight AI helps users manage tasks, generate code, and streamline workflows without leaving their current application.