Accessibility

All four engines agree that WCAG is the main web accessibility standard and that Level AA is the usual target. They all say who must follow it depends on location and sector, and none dissents.

All four engines put WCAG first among accessibility standards, followed by the ADA and Section 508. None of them dissents.

Four engines, ChatGPT, Copilot, Gemini and Google AI Mode, give the same overall picture, from free or cheap automated scans to $20,000 to $50,000 or more for enterprise audits. They differ only on the small business range, with Copilot higher at $2,500 to $7,000 and Gemini lower at $1,250 to $3,000.

ChatGPT, Copilot, Gemini and Google AI Mode all describe the same method, an expert review against accessibility principles that is lighter than a WCAG audit, and none dissents.

All five engines agree on the definition and on why accessibility matters, and none dissents. Only Gemini, Copilot and Google AI Mode stress legal duties.