Building accessibility tools on a truly open foundation
Source
allenai.org
Date
Terms in this piece · Glossary
grounding — Tying a model's answers to checkable sources — retrieved documents, live data, tool results — instead of letting it answer from memory alone.
Why it matters
Rule-based a11y scanners only read the DOM, so compliant markup can still render an unusable page. groundingTying a model's answers to checkable sources — retrieved documents, live data, tool results — instead of letting it answer from memory alone.Full definition → the check in a VLM's view of the rendered screen catches the perceptual failures static analysis cannot see.
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