Verified65% confidenceTradeoffExact time
Compared to the raw HTML DOM, the Accessibility tree filters out a large amount of purely visual style information and retains semantically interactive elements, reducing token consumption while improving Agent perception accuracy.
3
Sources
65%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
Browser Use: A Deep Dive into the Event-Driven Browser AI Agent Framework
bilibiliWeeko周报7/9/2026
Related Claims
UnverifiedThe accessibility tree is a semantic tree structure built by the browser based on the DOM; it strips away visual style information and retains semantic information such as the role, name, state, and properties of each element.75% similarUnverifiedDOM/Accessibility Tree-based solutions are faster and less costly, but are prone to element localization failures on dynamic pages.74% similarUnverifiedMainstream strategies for reducing browser agent action spaces include pruning the DOM tree, replacing full HTML with the accessibility tree, and numbering elements and having the model output the corresponding numbers.74% similarVerifiedBrowser automation Agents locate webpage elements and simulate human operations through DOM parsing, visual recognition, or Accessibility Tree.73% similar
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