Silex is Switzerland's trusted legal AI - designed by lawyers, for lawyers. Used by hundreds of law firms, notaries, fiduciaries, and legal departments, Silex delivers instant, verifiable answers grounded in Swiss law. 

Hallucination protected. No guesswork. Simply type or dictate your legal question in natural language. Within seconds, Silex searches the complete Swiss legal corpus - filtered by canton, legal field, and source type - and returns a documented answer with traceable references. 

Moreover, Silex helps you review and draft your documents, while integrating your internal knowledge confidentially for optimal results.

Clients report 94% less time on legal research, 56% more cases processed, and up to 85% saved on database subscriptions. 

Built for professional secrecy: all data is hosted 100% in Switzerland, never stored on our servers, and never used to train AI models. 

Peer-validated by leading Swiss practitioners and a multiple award winner, Silex doesn't just give you an answer - it gives you the tools to build your case.

Silex (previously known as Ex Nunc Intelligence) emerged as the first LegalTech spin-off from EPFL and was created from a simple observation: the way legal research is still conducted in many law firms and institutions no longer reflects the complexity, pace, and expectations of modern legal practice.

Our founding team encountered the same challenge repeatedly in their work. Legal research required navigating fragmented databases, outdated tools and manual analysis, even when speed and precision were critical. What was missing was not more information, but better infrastructure for working with the law.  

Today, Silex is used by legal professionals across more than 700 law firms, notary offices, tax advisories and corporate legal departments.

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