Both subscriptions are required; linked authorities support source checking rather than establish legal correctness.
Availability and plans
Harvey’s November 4 announcement describes Jus AI inside Assistant, Agents, Vault and Workflows, but promises availability to joint customers globally by year‑end. Firms need a Harvey subscription and a Jus AI plan. No additional integration charge therefore does not mean either underlying service is free.
Follow the authority
The proposed workflow compares Jus Mundi research with a matter’s record in Harvey Vault and links authorities to Jus Mundi source documents. That gives practitioners a route to inspect citations, rather than proof that the generated answer is legally correct or applicable.
Legal reference books, 2018; archive, not Harvey or Jus Mundi’s interface, corpus or output. Photo: Tony Webster / Wikimedia Commons, CC BY 2.0. Downscaled and display‑cropped.