This high-level comparison of the frontier models’ AI offerings for the legal industry is based on information available as of September 29, 2026, drawn chiefly from provider announcements and LTH’s own reporting. An in-depth comparison of the four providers on factors including use cases supported, legal research capabilities and sources, pricing and commercial models, ability to sell into legal, key people in legal, customers and reference clients, confidentiality, and privilege is available for LTH Premium subscribers.