Earlier quoted context omitted.
LLM could transform "bad HTML" into good HTML; add ARIA tags, add image captions, etc.
Unless it’s 100% reliable or near 100% reliable, you’d still need manual testing. Right now, automatic accessibility testing can’t even detect most accessibility issues. So we haven’t even reached the stage where all issues are detected by tools, and probably never will. Fixing all issues automatically is significantly harder than detecting them.
Not unless:
(a) it's X% reliable now, and it would be Y% (b) businesses actually care for increased reliability, and not just for passing the accessibility requirements.
Most businesses could not give less f...., and don't do "manual testing" today either. Just add the token required tags. That's true even when they do business with the government (which mandates this even more highly).
LLM-driven accessibility info would be an improvement.