Author: Jean Davis, Associate Librarian for International Law, Brooklyn Law School Library
Jus Mundi is a searchable collection of 120,000+ international arbitral awards, court decisions, and treaties. Jus Mundi also developed AI assistant Jus AI to support arbitration research and drafting. Jus Mundi now offers academic libraries the option to license individual Jus AI accounts. Previously, Jus Mundi only offered academic libraries a sitewide licensing option.
I recently obtained trial access to Jus AI. There are two available “AI modes”: Jus AI Think (for “complex tasks” involving “a larger number of documents”) and Jus AI Light (for “simple requests” involving “a limited number of documents” that one could upload in a PDF). The quoted descriptions appear on Jus AI’s search screen under tab: Think. Jus AI Think generated answers to my test research questions in approximately two minutes. For assistance drafting questions or commands, researchers can review Jus Mundi’s Prompt Library for Jus AI, which describes these AI modes and includes 7 Essential Tips for Effective Prompting.
Jus AI feature Show Reasoning reveals Jus AI’s “research plan.” This plan identifies the types of documents that Jus AI will review to generate an answer. Depending on one’s subscription, the document types may include awards and decisions, procedural orders and interim decisions, publications and doctrinal commentary, and arbitration rules and institutional guidelines.
Jus AI will only review the sources included in a customer’s subscription. So, if a customer subscribes to Jus Mundi Academic (for access to international arbitral awards/decisions) and the ICC Dispute Resolution Library, the customer will obtain Jus AI answers derived from Jus Mundi’s primary sources, the ICC, and other libraries that are available for free. Jus AI will not retrieve information from additional Jus Mundi subscription libraries: Brill International Law Library, JURIS Arbitration Law Library, or Oxford University Press Law Library. Nor will Jus AI consult, for example, Gary Born’s treatises contained in a different vendor’s product: Kluwer Arbitration. Thus, a librarian will still need to show researchers how to access leading international arbitration treatises and journals if an institution’s Jus AI subscription focuses on primary sources.
When I tested this product, there was an instance when Jus AI suggested alternative prompts to me.
My query was: Identify the five most significant English arbitration cases of 2025.
Jus AI’s response: I’m sorry, but I could not find any relevant information in the provided data to identify or summarize the five most significant English arbitration cases of 2025. The available sources focus exclusively on the doctrinal and practical impact of the UK Arbitration Act 2025, without referencing individual cases or their outcomes.
If you would like, you could refine your request to focus on the impact of the UK Arbitration Act 2025 on English arbitration practice, or provide additional context or documents related to specific cases from 2025. Alternatively, you could ask for a summary of the key reforms and their significance for English arbitration law, which is well-supported by the current data.
Jus AI Tips:
- Your Jus AI answer includes footnotes to the sources Jus AI consulted to build your answer. If you click a numbered footnote, you will retrieve a citation/link to a source and excerpts from this source.
- At the bottom of your Jus AI answer is tab: All Sources. You can click this tab to review a list of links to the sources Jus AI consulted to build your answer.
- Note: In its All Sources list, Jus AI counts a single source multiple times if it references different paragraphs of text in the same source to generate an answer. So, in one of my test searches, All Sources: 39 included six references to the same arbitral award.
- Jus AI can generate an answer in the form of an email or memo. But a legal researcher must click the Jus AI links to all potentially relevant sources and read them.
If you wish to better understand how practitioners are likely to use Jus AI, it is possible to obtain a free trial of this product. During a demonstration for Brooklyn Law School librarians, a Jus Mundi representative uploaded a sample of consolidated financial statements for a company and asked Jus AI (functioning in “Lite” mode) to perform multiple tasks. The tasks included: identifying any financial risks that could impact a potential agreement with said company; providing examples of contractual clauses that might mitigate financial risk if one were to partner with the company; drafting an email explaining the risks and different ways to mitigate them; and finally, translating the draft to another language (Spanish in this example).
Concerning Jus AI’s translation feature: When asked: “Which languages will Jus AI translate from/translate to?” Jus Mundi representatives replied: “All major global languages.” Regarding document translation limits, the representatives noted there is an 8K character limit and a 500 MB size limit. If you obtain a Jus AI database trial, I recommend this test example: Prompt Jus AI to draft an email to a client in German describing how the UK Arbitration Act 2025 addresses the principle of kompetenz-kompetenz. Next, ask an LLM candidate/librarian/faculty member who reads German to evaluate the clarity and grammatical correctness of the translation. Then, ask Jus AI to translate the email into additional languages.
Note: There are some features of Jus AI that are not part of Jus AI’s existing academic subscription plan. For example, the ability to select a specific arbitrator and “request a list” – this would allow the researcher to view in one’s search results a list of all decisions involving this arbitrator. The researcher also could “request a summary” of the arbitrator’s decisions. I hope that in the future these features will become available to Jus AI’s academic subscribers.
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