Comparison
Jurata® Legal Agent vs. Casus
The Jurata® Legal Agent and Casus are two AI solutions for legal work from Zurich, both with a web app, a Word Add-in and data storage in Switzerland. The Jurata® Legal Agent specializes in legal research and drafting under Swiss law, Casus in reviewing, drafting and editing documents, mainly in Microsoft Word, in the DACH region. The comparison covers focus, legal sources, answer validation, features, hosting and professional secrecy, access and support, and the companies. As of October 2026.
Third-party information is sourced from their public websites and documentation.
Focus
Criterion | Jurata® Legal Agent | Casus |
|---|---|---|
Main focus | Legal research, drafting and review under Swiss law, with verified sources | Document work mainly in Microsoft Word: review, benchmarking against playbooks, proofreading, complemented by legal research |
Jurisdictions | Specialized in Swiss law: federal law and all 26 cantons | Switzerland, Germany and Austria as well as France, Italy and Spain |
Target group | Law firms, legal departments, insurers and public authorities in Switzerland | According to the provider, small and mid-sized law firms and legal departments in the DACH region |
Swiss legal sources
Criterion | Jurata® Legal Agent | Casus |
|---|---|---|
Legislation | Federal law and the legal collections of all 26 cantons with over 500’000 statutory articles | Federal acts and cantonal legislation |
Case law | Federal Supreme Court including unpublished judgments, Federal Administrative, Federal Criminal and Federal Patent Court, cantonal courts | Federal Supreme Court including leading BGE decisions, Federal Administrative, Federal Criminal and Federal Patent Court, decisions from all 26 cantons |
Administrative practice | Library with over 1’100 documents of administrative practice (including circulars, directives, practice notes and implementation guides) from 15 areas of law, including from FINMA, ESTV and SEM | Not listed; the source overview for Switzerland names courts and legislation |
Citation graph | Interactive citation graph (Swiss Legal Graph with around 1.5 million nodes and almost 20 million relationships): shows how statutes and judgments cite each other, down to paragraph and letter | Not publicly documented |
Course of instances and outcome | The citation graph links judgments to the lower court decision and shows whether it was upheld, overturned or amended and how the proceedings ended | Not publicly documented |
Answer validation
Criterion | Jurata® Legal Agent | Casus |
|---|---|---|
Checking every statement | Answer validation: after each answer, every statement is checked against all original sources cited for it; the result shows what is supported, partly supported or not supported | Sources with the passage highlighted so that users can check every statement themselves; automatic checking of statements is not publicly documented |
Checking every citation | Every citation is assessed individually: supported, wrong pinpoint, does not support the statement or contradicts the statement | According to the provider, only sources actually found are cited; an assessment of each citation is not publicly documented |
Unsupported legal statements | Legal statements without a citation are flagged | Not publicly documented |
Features compared
Criterion | Jurata® Legal Agent | Casus |
|---|---|---|
Word editor in the web app | Integrated Word editor in the workbench: fully equivalent to Microsoft Word, the file format (.docx) is preserved 100 %; with tracked changes, comments, styles, numbering, table of contents, spell check and AI editing directly at the selected passage | According to the provider, document work mainly directly in Microsoft Word via the Word Add-in; in the browser, the AI chat edits DOCX documents that are returned as Word files with tracked changes; a dedicated Word-compatible editor in the browser is not publicly documented |
Deadline calculator | The agent calculates deadlines in days or months, taking into account the public holidays of the relevant canton and court holidays | Not publicly documented |
Inserting citations in Word | Search statutes and judgments in the Word Add-in and insert them as an inline citation or footnote, e.g. «Art. 41 OR» | Legal research in the Word Add-in; insertion as a footnote not publicly documented |
Hosting and professional secrecy
Criterion | Jurata® Legal Agent | Casus |
|---|---|---|
Data storage | Microsoft Azure in Switzerland (Switzerland North region); chats and documents encrypted and deletable at any time | Google Cloud in the Zurich region (europe-west6), encrypted |
Model inference (language models) | Microsoft Azure in Switzerland and the EU, never in the US | Google Vertex AI in Belgium and Microsoft Azure OpenAI in Switzerland and Sweden, no inference in the US |
Cloud providers for storage and model inference | Microsoft Azure (Switzerland and EU) | Google Cloud and Microsoft Azure |
Training on customer data | No, neither by Jurata nor by the LLM provider; zero data retention | No, neither by Casus nor by the model providers; zero data retention |
Professional secrecy | Legal opinion by Dr. iur. David Vasella (Walder Wyss): use including the entry of client data without client consent complies with professional and data protection law (Art. 321 StGB, Art. 13 BGFA, FADP, GDPR) | Casus and employees with possible plaintext access bound as auxiliary persons under Art. 321 StGB, set out in the terms and conditions (Art. 321 StGB, Art. 13 BGFA); written confirmation on request |
Access and support
Criterion | Jurata® Legal Agent | Casus |
|---|---|---|
Interface languages | German, French, Italian and English | German and English |
Phone support | Swiss phone hotline, plus email | No phone number published; support via in-app chat and email |
Support response time | Within 24 hours (Entry) or within 4 hours (Pro and Max), during business hours | Support during business hours (terms and conditions); no guaranteed response times published; priority support in the Advanced plan (price on request) |
Public pricing | Yes: Entry, Pro and Max per user and month; Enterprise on request | Yes, Standard plan per user and month; Advanced on request |
Company and reviews
Criterion | Jurata® Legal Agent | Casus |
|---|---|---|
Provider | Jurata AG, Zurich | CASUS Technologies AG, Zurich |
Google reviews | 5.0 stars (492 reviews) | 4.7 stars (10 reviews) |
Trustpilot reviews | 4.9 stars (87 reviews) | No Trustpilot profile |
Weblaw AI Legal Research Challenge (17 June 2026) | Participated | Did not participate |
Conclusion: Jurata® Legal Agent compared with Casus
Casus is an AI solution from CASUS Technologies AG in Zurich that focuses on document work, mainly in Microsoft Word: review, benchmarking against playbooks and proofreading, complemented by legal research. According to the provider, Casus is aimed at small and mid-sized law firms and legal departments in the DACH region, and it covers Germany, Austria, France, Italy and Spain in addition to Switzerland. Casus stores data encrypted on Google Cloud in Zurich, does not run model inference in the US and does not use customer data for training.
The Jurata® Legal Agent specializes in legal research and drafting under Swiss law: legislation of the Confederation and all 26 cantons with over 500’000 articles, administrative practice in the Library and a citation graph showing the course of instances and the outcome of proceedings. The answer validation of the Jurata® Legal Agent checks every statement against the original sources cited, assesses every citation individually and flags legal statements without a citation. In addition, there is an integrated Word editor that is fully equivalent to Microsoft Word, and a deadline calculator that takes cantonal public holidays and court holidays into account.
For use in a law firm, the Jurata® Legal Agent also offers a legal opinion by Dr. iur. David Vasella (Walder Wyss) on professional secrecy, an interface in German, French, Italian and English, and a Swiss phone hotline with fixed response times. If your work is mainly research and drafting under Swiss law, you can test the Jurata® Legal Agent on your own case for 7 days free of charge, without a credit card.
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