Comparison
Jurata® Legal Agent vs. Silex
Silex by Ex Nunc Intelligence SA in Lausanne and the Jurata® Legal Agent by Jurata AG in Zurich are two Swiss AI solutions for legal work. This comparison shows the differences in legal sources and research, in answer validation, in working with documents, cases and Word, and in professional secrecy. As of October 2026.
Third-party information is sourced from their public websites and documentation.
Legal sources and research
Criterion | Jurata® Legal Agent | Silex |
|---|---|---|
Legislation | Over 500’000 statutory articles from federal law and all 26 cantons | Federal law and cantonal law of all 26 cantons |
Case law | Over 960’000 decisions: Federal Supreme Court including judgments not published in the official reports, Federal Administrative, Federal Criminal and Federal Patent Court, cantonal courts and administrative practice | Federal and cantonal case law, with optional ECtHR case law and administrative publications (e.g. FINMA, tax circulars); over 800’000 legal sources in total according to the provider |
Cantonal law in research | The agent searches cantonal legislation and decisions on its own with dedicated tools, without selecting the canton first | Cantonal sources are only included if the canton or cantons are selected in the canton filter before sending |
Research modes | Fast mode for quick answers, Deep Agent for in-depth research | Fast for quick answers, Smart for in-depth analysis |
Follow-up questions when facts are unclear | The agent asks structured follow-up questions with choices or form fields before continuing its research | Not publicly documented |
Source view | Clicking a citation opens the article or decision next to the answer and highlights the supporting passage | Source reference with an excerpt of the passage the statement relies on; a link leads to the original text, for example on fedlex.admin.ch |
Citation graph | Interactive citation graph (Swiss Legal Graph with around 1.5 million nodes and almost 20 million relationships), including the chain of instances and the outcome of proceedings | Not publicly documented |
Answer validation
Criterion | Jurata® Legal Agent | Silex |
|---|---|---|
Checking every statement | Answer validation: after each answer, every statement is automatically checked against the cited original sources and shown as supported, partially supported or not supported | Numbered source references with an excerpt and a link to the original text; according to Silex, checking the sources is the professional’s responsibility |
Checking every citation | Each citation is assessed individually: supported, wrong pinpoint, does not support the statement or contradicts the statement | Not publicly documented |
Unsupported legal statements | Legal statements without a supporting source are marked in the answer | Not publicly documented |
Citations from your own documents | Go through the same answer validation; the cited passage is highlighted in the document | References with a preview and a link to the original file; according to Silex, checking against the original is the professional’s responsibility |
Documents, cases and drafts
Criterion | Jurata® Legal Agent | Silex |
|---|---|---|
Files in the chat | PDF (including scans), Word, PowerPoint, Excel and images; answers with references to the passage in the document | Word and PDF with a text layer; scans and images via the Silo document storage |
Dossiers and case memory | Dossiers bring together the chats and documents of a matter; every new chat knows the case, and findings from earlier chats are carried over | Folders per case; according to Silex, every new conversation starts without access to other conversations |
Word editor in the Legal Agent | Integrated Word editor in the Workbench: fully equivalent to Microsoft Word, the file format (.docx) is 100 % preserved; with tracked changes, comments, styles, numbering, table of contents, spell check and AI editing directly at the selected passage | No dedicated Word-compatible editor documented; drafts are created in the chat and can be exported as Word or PDF |
Drafts and export | From the answer to a memo, letter or email in one click; export of individual answers or entire chats as Word or PDF with clickable sources and a list of sources | Drafting mode in the chat: memos, letters and clauses from the research, with citations carried into the draft; export of individual answers or entire conversations as Word or PDF |
Skills | Save working instructions as skills and call them into any chat with “/”; share them with the team; plus skills prepared by Jurata | Saved custom working instructions not publicly documented; ready-made AI agents for individual tasks (anonymisation, translation, document comparison, meeting minutes) |
Deadline calculator | Agent tool: deadlines in days or months, taking into account the public holidays of the relevant canton and court holidays | Not publicly documented |
Commercial register | Zefix lookup by the agent: UID, company name, registered office, auditor and, based on SHAB publications, current authorised signatories | Not publicly documented |
Focus | Research, drafting and review in one workflow, in the web app and in Word | Research in Swiss law, complemented by its own document storage (Silo, SharePoint) and AI agents for individual document tasks |
Word Add-in
Criterion | Jurata® Legal Agent | Silex |
|---|---|---|
Word Add-in | In the Microsoft Marketplace: chat, research, drafting, revising and reviewing directly in Word; chat actions in the document either confirmed individually or run on Autopilot | No Word Add-in documented, not listed in the Microsoft Marketplace |
Research in Word | Search legislation and case law directly in Word and insert them as a citation or footnote | No Word Add-in documented |
Drafting from templates | Personal templates and team templates (.docx); the agent selects the right template and applies it | No Word Add-in documented; according to Silex, templates can be stored in the Silo document repository and brought into the chat |
Revising in Word | Entire document or a selection; every change appears as a Word tracked change, can be accepted individually and leaves the formatting unchanged | No Word Add-in documented |
Automatic review | Finds inconsistencies in terminology, cross-references, consistency, completeness, legal accuracy and ambiguity and checks named companies against the commercial register; fix in one click | No Word Add-in documented; AI agent for comparing two versions of a document in the web app |
Data protection and professional secrecy
Criterion | Jurata® Legal Agent | Silex |
|---|---|---|
Data storage | Microsoft Azure in Switzerland (Switzerland North region), encrypted | Infomaniak in Geneva, encrypted |
Training on your data | No, neither by Jurata nor by the LLM provider | No, neither by Silex nor by third parties (self-hosted models) |
Professional secrecy | Legal opinion by Dr. iur. David Vasella (Walder Wyss): use, including entering client data without the clients’ consent, complies with professional rules and data protection law | No external legal opinion published; under the terms and conditions, contractual confidentiality under Art. 321 SCC and the Lawyers Act, and the customer is invited to inform its clients in advance of the possible use |
Provider, reviews and access
Criterion | Jurata® Legal Agent | Silex |
|---|---|---|
Provider | Jurata AG, Zurich | Ex Nunc Intelligence SA, Lausanne |
Founded | 2020 | 2023 |
Team | around 15 employees | 9 people in the founding and delivery team according to the team page |
Google reviews | 5.0 stars (492 reviews) | No Google listing found |
Trustpilot reviews | 4.9 stars (87 reviews) | 3.4 stars (6 reviews) |
Languages | Interface and answers in German, French, Italian and English | Questions and answers in German, French, Italian and English |
Free trial | 7 days, no credit card | 7 days, no credit card |
Support | By email and Swiss telephone hotline; response within 24 hours (Entry) or 4 hours (Pro and Max), during business hours | By email and contact form; no response times published |
Conclusion: Jurata® Legal Agent compared with Silex
Silex by Ex Nunc Intelligence SA in Lausanne is a Swiss AI solution for research in Swiss law: federal law and the cantonal law of all 26 cantons, federal and cantonal case law and, as an option, ECtHR case law and administrative publications. Silex offers the Fast and Smart modes, a drafting mode for memos, letters and clauses, and ready-made AI agents for individual tasks such as anonymisation, translation and document comparison. Data is stored encrypted with Infomaniak in Geneva and is not used for training, neither by Silex nor by third parties.
The Jurata® Legal Agent uses answer validation to check every statement automatically against the cited original sources after each answer, assesses each citation individually and flags legal statements without a supporting source. The Jurata® Legal Agent searches cantonal legislation and decisions on its own, without selecting the canton first, and each case can be kept in a dossier with case memory.
The Jurata® Legal Agent offers an integrated Word editor for drafting, fully equivalent to Microsoft Word, and a Word Add-in with chat, research, drafting, revising and reviewing directly in Word. A legal opinion by Dr. iur. David Vasella (Walder Wyss) confirms that use of the Jurata® Legal Agent, including entering client data without the clients’ consent, complies with professional rules and data protection law. You can test the Jurata® Legal Agent free of charge for 7 days on your own case, without a credit card.
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