Harvey to Bring Jus Mundi’s Arbitration Agent Into Legal Workflows

Harvey announced on November 4, 2026 a partnership to integrate Jus Mundi’s Jus AI arbitration agent into its Assistant, Agents, Vault and Workflows products. The integration is intended for international arbitration and cross-border disputes teams, with global availability to joint customers planned by the end of 2026 at no additional cost.

Research Connected to Case Files

The integration is designed to place specialist research beside the matter record. Once activated, a lawyer evaluating a client’s position could draw on applicable awards, treaty practice and institutional rules, then test the resulting research against documents in the matter’s Harvey Vault. The matter remains in Harvey, and findings can be carried into a memo, pleading or witness-preparation outline. Each authority links back to its source document on Jus Mundi’s platform.

Those results can be reviewed in the context of the matter’s pleadings, exhibits and transcripts. Pinpoint citations support checking the underlying material before an answer is presented to a tribunal. Recurring disputes work covered by the integration includes preparing a Request for Arbitration, checking authorities while drafting, comparing exhibit bundles with precedent and identifying clauses that rely on superseded international rules.

Arbitration Sources and Model Design

Jus Mundi’s source base spans investment and commercial awards, decisions, treaties, procedural materials and publications. Content relationships include the IBA and arbitral institutions including the ICC, AAA-ICDR, LCIA, SIAC, HKIAC, DIAC and Court of Arbitration for Sport. Secondary materials include the ICC Dispute Resolution Bulletin, ICSID Review and Redfern and Hunter on International Arbitration.

Jus Mundi’s Jus AI product page says Jus Mundi Data contains more than 125,000 case documents, awards and leading publications through more than 110 exclusive institutional and publisher partnerships. Its My Sources feature can search and analyze up to 10,000 user documents, with files secured and encrypted in a private Vault.

Jus AI runs on Jus AI Tenet V5, which Jus Mundi describes as a proprietary large language model trained on arbitration and international law. Users can choose four reasoning modes — Auto, Light, Think and Deep — and inspect reasoning steps, check citations and follow links back to sources.

Security and Rollout

The integration will operate within Harvey’s existing security, confidentiality and data-governance controls. Jus Mundi separately lists ISO 27001 and ISO 42001 certifications and a SOC 2 Type II attestation for Jus AI. The security provisions are central to a workflow that combines outside research with confidential case materials and private user documents.

Access requires both a Harvey subscription and a Jus AI plan, and eligible firms must activate the integration through their Jus Mundi account team. The rollout therefore targets joint customers rather than every Harvey subscriber.

Harvey Chief Business Officer John Haddock said the partnership responds to clients seeking deep domain expertise inside the platform where they manage important matters. Emmanuel Jacomy, a partner at A&O Shearman, said bringing the tools together would give arbitration teams a new way of working, with more time for client advocacy and strategic tasks.

For arbitration teams, the key change is where the work happens: source research, citation checking and drafting are designed to share one matter context, reducing the handoffs between a specialist research platform and the case file.