Agentic browser

Traditional browsers are passive: you go to a page, you interact. An agentic browser adds an AI layer that can perceive the page, reason about what to do next, and take actions: clicking buttons, filling in fields, submitting forms, navigating between pages. You describe a goal, the agent figures out the sequence of browser interactions to achieve it.

By mid-2025, a wave of agentic browsers emerged from major labs and startups, including OpenAI's Operator, Google's Project Mariner, Perplexity's Comet, and Browser Company's Dia. Each takes a slightly different approach to how much autonomy the agent has and how it handles ambiguity or unexpected page states. The common thread is that the browser participates in completing a task rather than just displaying content.

For builders, the interesting question is when an agentic browser is the right tool versus a dedicated integration. If a service has an API (a standardized way for software to talk to it), using the API is more reliable. Agentic browsers become valuable when no API exists, when the service is only accessible through a web interface, or when the task requires navigating across multiple sites with different structures.