OpenAI has launched ChatGPT Atlas, a new AI-integrated web browser initially available for macOS, with other platforms coming soon. The browser features a ChatGPT sidebar for real-time assistance, personalized memory for task automation, an Agent Mode that performs complex actions, split-screen viewing, and standard browsing tools. Atlas competes with traditional browsers by offering deeper AI integration and contextual assistance. It provides privacy controls including memory management and incognito browsing. This release represents OpenAI's significant move into consumer software, potentially transforming how users interact with the internet.