A horizontal AI tool serves everyone and knows no one's field in depth. Vertical AI narrows the scope on purpose. It encodes the vocabulary, rules, and standards of a discipline, so its output fits how practitioners actually work.
This focus is what makes vertical AI useful in high-stakes settings. Legal, medical, financial, and strategy work all depend on established methods and defensible reasoning. A tool that respects those methods produces results a professional can sign off on.
Vertical AI trades breadth for depth. That is the point.