AI article
Accessibility tree vs screenshots: the token math behind my browser agent
Community description: I measured what a page costs an AI agent as pixels vs as an accessibility tree. The difference is an order of magnitude.
Dev.to | Sep 12, 2026 | Ivan Seredkin
Automated excerpt
The browser already maintains a description of the page for screen readers: the accessibility tree. Twenty scoped tree reads bill a text tier at a slice each. The accessibility tree contains semantic elements.
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