Opera One is a cutting-edge web browser that integrates an AI assistant named Aria, making it a first in the browser landscape. This browser offers a user-controlled AI experience, allowing users to opt in or out of AI features. Aria provides access to OpenAI's GPT-based solution, delivering real-time web information and assistance with browsing tasks. The browser also introduces innovative features like Tab Islands, which organize related tabs contextually, enhancing productivity and navigation.

The design of Opera One is modular and built on a new architecture that includes a multithreaded compositor for smoother performance. Users can expect a more dynamic and adaptable browsing experience, with the ability to customize tab arrangements and switch between topics seamlessly. With its focus on intuitive tab management and AI integration, Opera One aims to redefine how users interact with the web.