This AI browser runs exclusively on Apple macOS 14 or later with M1 chips and newer models. The same team that built Arc browser created Dia to embed AI assistance directly into browsing sessions.
The chat-with-tabs feature lets users query any open webpage without switching contexts. Writers get an in-line copy editor that works inside every text box across the web. Students can generate practice problems from course material and break down complex concepts without leaving their study tabs. YouTube videos become navigable through AI-generated timestamps that jump to specific information segments.
Shopping assistance includes product comparison across multiple retailers and automated review analysis. The browser translates content on demand and generates to-do lists immediately from planning sessions. Research workflows get source-finding tools and the ability to compare SaaS products with full context from active tabs.
Content creators access instant summaries of articles and videos. The system analyzes arguments by presenting opposing viewpoints in a single view. Brand teams can personalize outputs to maintain voice consistency across content. Engineers and journalists use the in-line question answering to verify technical details while reading documentation or reports.
Privacy controls let users decide what data the AI can access. The company states it won't profit from personal information. All customization happens at the user level.
The macOS-only requirement limits access. No mobile app exists. No browser extension version. The feature set works only within Dia's native environment, so users can't add these capabilities to existing browsers like Chrome or Firefox. Windows and Linux users can't run Dia at all until platform support expands beyond Apple's ecosystem.
