An AI browser builds a language model assistant into the browser itself. It can read the current page, answer questions about it, compare tabs, and in agent mode carry out multi-step tasks. Examples launched in 2025 include OpenAI's ChatGPT Atlas and Perplexity's Comet, and Google has added Gemini features to Chrome. These browsers blur the line between visiting a site and asking an assistant about it.
What AI browsers change
In a normal browser, a person reads your page. In an AI browser, they may ask the sidebar to summarize it, compare it with a competitor's page in another tab, or extract the pricing into a table. The visit still happens, but the reading is partly done by a model. That raises the importance of clear, extractable facts on the page and lowers the importance of design flourishes that only humans see.
AI browsers also tend to put an assistant or AI search experience in the address bar or new tab page, which can shift some searches away from classic search results.
Measurement and uncertainty
How AI browsers appear in analytics varies. Visits are usually real browser sessions, so they may look like normal traffic, and referrer data depends on how the user arrived. Agent-driven sessions can look unusual: very fast navigation, no scrolling, direct form interactions. Vendors have published little detail on how to identify them, so treat any classification as approximate.
- Check whether key facts are readable as text on the page.
- Test your pages with the sidebar assistants in the main AI browsers.
- Watch for odd session patterns on pricing and demo pages.
Example
A comparison made in the sidebar
A buyer opens Hollowbrine's pricing page, from a fictional ticketing company, alongside a rival's, and asks the browser assistant which is cheaper for 25 agents. Hollowbrine's per-agent prices are in an HTML table, so the assistant answers accurately. The rival's prices sit inside an interactive calculator, and the assistant reports that it could not find them.
Common mistakes
Assuming AI browsers are niche
Adoption is uncertain and changing, but the major browser makers are all adding assistants. Planning for model-read pages is low-cost.
Locking facts in calculators and images
If a fact can only be seen by interacting with a widget, an assistant may miss it.
Questions
They overlap. AI browsers often include AI search, but they also act on any page you open.
Behavior varies by browser and is still changing. Check referrers and campaign tagging in your analytics rather than assuming.
