Whisperit and Silex are two Swiss solutions based on artificial intelligence, but they meet different needs. Whisperit mainly makes dictation, transcription and drafting from the voice easier. Silex is first and foremost designed for legal research and analysis in Swiss law, with references that professionals can consult and check.
These two approaches can complement each other. Before adopting one or the other, it remains essential to check the reliability of the legal sources, the conditions of data processing and respect for professional secrecy.
Whisperit: a work tool centred on the voice
Whisperit SA is a Swiss company based in Prilly, near Lausanne, and was entered in the commercial register in 2024.
Its platform presents itself as an AI-assisted workspace, aimed in particular at lawyers and notaries. It makes it possible to move from speech to a written document, whether a dictation, a telephone call or a meeting.
According to the publisher, Whisperit in particular makes it possible to:
- dictate a brief, a letter or a legal note;
- transcribe calls and meetings involving several participants;
- generate structured minutes and task lists;
- draft documents from voice recordings or notes;
- organise files, use templates and collaborate in a team;
- ask legal questions and obtain references to check.
Whisperit supports French, German, Italian and English. Some presentations also mention Dutch. The publisher also states that it is possible to dictate in one language and produce the final document in another.
Silex: an AI specialised in Swiss law
Silex is a Swiss legal assistant for professionals who need to search, understand and analyse statutory provisions or court decisions, at both federal and cantonal level.
Its aim is to help the lawyer find the relevant texts, organise the reasoning and prepare a first draft. Interpreting the results and validating the final document remain the professional’s responsibility.
According to its publisher, Silex gives access to a corpus of more than 800 000 Swiss legal sources, including in particular statutes, ordinances and court decisions.
The main features are presented on the page dedicated to the Silex product.
Dictation, transcription and minutes: what are the differences?
The distinction between the two platforms is particularly clear when working with audio content.
Whisperit is designed for regular use of the voice. It in particular makes it possible to dictate a text, transcribe a meeting, distinguish the various speakers and prepare formatted minutes. According to the company, the transcription takes account of legal vocabulary, citations and exchanges in several languages.
Silex, for its part, is not primarily intended to replace continuous dictation software. It does, however, offer to convert an audio recording into structured minutes, which can then be used in a legal file.
In Switzerland, recording a conversation requires particular care. The professional must in particular make sure that the consent conditions and the applicable rules are complied with, especially those of article 179ter of the Swiss Criminal Code.
In practice: if you mainly want to dictate your documents rather than type them, Whisperit answers that use more directly. If your priority is to carry out research in Swiss law and to integrate it into work on a file, Silex better matches that need.
Legal research and checking of sources
Whisperit states that it can formulate structured answers from the documents in a file and from legal resources, providing references that the user must check.
Silex places greater emphasis on its Swiss-law corpus. According to the publisher, its answers come with sources that can be consulted, so that the lawyer can find the texts used in the analysis.
Whatever the solution, the presence of a reference does not, on its own, guarantee that an answer is correct. Original sources should be consulted and their date, the court concerned, their validity and their relevance to the file in hand should be checked.
To go further into this method, see our article on legal analysis assisted by artificial intelligence.
Analysis and drafting from the firm’s documents
Whisperit and Silex can both be used to work on a firm’s internal documents, but their features are not organised in the same way.
According to Whisperit, the platform can identify the parties and important dates, reconstruct a chronology, draft from the firm’s templates and keep a version history. It also provides for collaborative work, export to Word and connections with services such as Outlook, OneDrive, Google Drive and Dropbox.
With its Silo feature, Silex makes it possible to analyse contracts, notes, files and internal precedents, then to link those documents to the relevant Swiss legal sources.
Silex also offers specialised agents for certain everyday tasks:
- Anonymisation: mask the names of the parties and sensitive information in a document;
- Legal translation: translate texts into French, German, Italian or English;
- Document comparison: spot the differences between two versions of the same text;
- Creation of minutes: turn an audio recording into a structured report.
These functions can be useful to prepare a document intended to be shared, to check a new version of a contract or to work on a file involving several languages.
In every case, a human review remains indispensable before any professional use or transmission to a third party.
Data hosting and respect for professional secrecy
Both companies highlight hosting of data in Switzerland. They also state that they do not use their clients’ data to train their artificial intelligence models.
According to Whisperit, documents, transcriptions and other file data are stored in Switzerland, in particular in Microsoft Azure’s Switzerland North region and with Infomaniak in Geneva. The offer proposed by default, called Swiss Only, also provides for AI requests to be processed in Switzerland. Configurations involving the European Union or other regions of the world may be offered on request.
Silex, for its part, states that it hosts data in Switzerland with Infomaniak, keeps it separate between client organisations and excludes users’ files from the training of its models.
Before choosing a platform, it is important to check the actual contractual conditions, any processors involved in AI or audio processing, and the arrangements for access to documents and recordings.
You will find more information on the Silex security page and in our article on artificial intelligence and data protection.
Integration with the software used by law firms
Whisperit favours the office tools and online storage services commonly used in law firms, in particular Word, Outlook, OneDrive, Google Drive and Dropbox, as well as certain electronic signature solutions.
Silex instead seeks to integrate its legal research functions into the practice software already used by professionals in Switzerland.
The integration of Silex into WinLex and SkyLex is thus intended to let users launch legal research directly from their file-management software.
The partnership with MCR Solutions pursues a similar aim: to integrate AI legal assistance into existing workflows.
You can also read the announcements on the partnership between Silex and EXPERTsuisse and on the adoption of Silex by Bordier & Cie.
Pricing of Whisperit and Silex
Whisperit displays a price of about 300 US dollars per user per month. The publisher also offers a seven-day trial, annual billing and licences for law firms.
Silex presents several monthly plans:
- Solo: 149 CHF per month for one user;
- Team: 490 CHF per month for a maximum of five users;
- Enterprise: 895 CHF per month for a maximum of ten users.
To see the conditions of each plan, see the pricing and solutions pages. The amounts stated here correspond to the information in the source text and should be confirmed with the publishers before any subscription.
Whisperit or Silex: comparison table
To widen your comparison, see our selection of legal AI alternatives, our comparison DeepJudge or Silex and our article on legaltech solutions in Switzerland.
Conclusion: which solution matches your needs?
Whisperit and Silex do not seek to solve exactly the same problems. The former stands out through its voice-centred approach: it makes it possible to dictate, transcribe exchanges and draft more easily. The latter focuses on Swiss legal research, consulting sources and using the firm’s documents, with complementary tools for anonymisation, translation, comparison and the creation of minutes.
The right choice therefore depends first of all on your daily work. If you spend a lot of time dictating and transcribing documents, Whisperit may be a better fit. If you are mainly looking for support to analyse questions of Swiss law and work on legal files, Silex deserves to be examined.
To discover Silex from a concrete case, you can book a demonstration.
If you are instead looking for a solution for personal use, see our guide on legal AI for individuals.
Frequently asked questions
Can Whisperit replace a tool for legal research in Swiss law?
Not necessarily. Whisperit can provide legal information and references, but these must be checked. For in-depth research in Swiss law, it is important to examine the sources actually covered by the tool and the possibility of consulting the original texts.
Can Silex create minutes from an audio recording?
Yes. Silex offers to turn a recording into structured minutes. The generated content must, however, be checked and corrected by the professional before it is added to the file or circulated.
Does the data processed by Whisperit remain in Switzerland?
According to Whisperit, the data is stored in Switzerland and the Swiss Only configuration, offered by default, also provides for AI requests to be processed in Switzerland. Other geographic configurations are, however, available on request. The precise conditions of the contract taken out should therefore be checked.
