Can Claude replace a legal research tool for Swiss files? Not really. Claude is a useful generalist assistant for drafting, summarising or analysing documents, but it is not designed specifically for Swiss law.
For a legal professional, three criteria matter most: the reliability of the sources, the confidentiality of the data and the fit with the Swiss legal framework.
Claude and Silex meet different needs
Claude, developed by Anthropic, is a general-purpose assistant. It can draft, summarise, analyse documents or help on many professional subjects.
Silex specialises in legal research and analysis in Swiss law. Its aim is to provide answers linked to verifiable legal sources.
For a law firm, this difference matters. A fluent text is not enough: it must be possible to check the statutes and decisions used in the reasoning.
We make the same comparison with ChatGPT in our article ChatGPT or Silex.
The particularities of Swiss law
Swiss law combines federal legislation, cantonal rules, case law and legal literature.
A general-purpose assistant may know these elements, but it is not necessarily designed to distinguish precisely the rules that apply in a canton or to follow recent developments in the law.
Silex, by contrast, is designed around Swiss law and its particularities. It can in particular take the federal or cantonal context into account during a search.
For a professional, the aim is therefore not only to obtain an answer that looks correct, but an answer suited to the right legal system.
How Claude uses sources
Claude can work from the documents you give it and, depending on the configuration used, cite the passages it relies on.
This function is useful for analysing a set of specific exhibits. It does not, however, turn Claude into a database specialised in Swiss law.
If the tool relies on general knowledge or a web search, the important legal references must be checked before any use.
An AI can in fact produce a citation that looks plausible but is incorrect, or even invent a decision or misread a rule.
Why sources must be verifiable
Legal research does not consist only in producing an answer. Each important argument must be capable of being linked to a real source.
An incorrect reference in a note, a brief or a communication to the client can weaken the whole reasoning.
Silex is designed to link its answers to legal sources that the professional can open and check.
The lawyer thus keeps control of the analysis and can quickly check whether a rule or a decision actually supports the answer proposed.
Our article on AI-assisted legal analysis presents this method in more detail.
Confidentiality and file data
For a legal professional, the question of data is as important as that of the sources.
Claude’s professional plans offer various security functions. The data-processing conditions nevertheless depend on the product and the configuration used.
Before sending a confidential file to a tool, it is necessary to check where the data is stored, who can access it and whether it can be used to improve the models.
According to Silex, data is hosted in Switzerland by Infomaniak, kept separate between organisations, and client files are not used to train the models.
The guarantees stated are set out on the security page.
Working with internal documents through Silo
With Silo, Silex makes it possible to query the firm’s internal documents in a dedicated environment.
The professional can work on notes, contracts, former files or templates and link them to a search in Swiss law.
This function makes it possible, for example, to find a former argument, an internal precedent or a clause already used without having to browse the archives by hand.
The point is to take the real context of the file into account while keeping access to the original documents.
The features are presented on the product page.
Using Silex in the firm’s software
A tool is easier to adopt when it integrates with the software already used by professionals.
The partnership Silex and MCR Solutions aims to integrate AI-assisted legal research into existing work processes.
Silex is also available in certain practice-management platforms, as explained in the announcement Silex in WinLex and SkyLex.
The professional can thus carry out a search or analyse a document without leaving the usual environment.
The private bank Bordier & Cie also uses Silex for its legal research.
Silex pricing
Silex offers several plans according to the size of the organisation.
The Solo plan is priced at CHF 149 per month. The Team plan costs CHF 490 per month and the Enterprise plan CHF 895 per month.
Features and limits vary according to the plan chosen. Details are available on the pricing and solutions pages.
Claude or Silex: what to compare
The choice depends mainly on your use.
Claude is suited to general drafting, summary or document-analysis tasks. For professional legal work in Switzerland, the sources and the data-processing conditions must nevertheless be checked carefully.
Silex is designed for professionals who want a tool centred on Swiss law, with verifiable legal sources and an environment intended for confidential files.
If you are comparing other solutions, our article on legal AI alternatives presents several of them.
In short
Claude and Silex do not meet exactly the same need.
Claude is a versatile assistant that can help on many tasks. Silex focuses on research, analysis and work on files in Swiss law.
For professional legal use, the essential criteria remain the quality of the sources, data protection and the ability to check every answer.
To test Silex on one of your files, you can book a demo.
You can also read the announcement Silex and EXPERTsuisse as well as our article on legal AI for individuals.
FAQ
Is Silex compatible with data-protection requirements?
According to Silex, data is hosted in Switzerland and client files are not used to train the models. The applicable framework is set out in our article on AI and data protection.
Can internal documents be imported into Silex?
Yes. With Silo, professionals can analyse their own documents and use them in their research while keeping access to the original sources.
