DeepJudge and Silex are two Swiss artificial intelligence solutions for legal professionals, but they address different needs. DeepJudge presents itself as an AI search and workflow platform that helps legal teams leverage their internal knowledge: documents, precedents, templates, matters, emails and knowledge bases. Silex is a Swiss legal AI designed for research, analysis and reasoning in Swiss law.
The right comparison is therefore not "which AI is more advanced?", but rather: do you want to make your firm's internal knowledge usable, or do you want a sourced Swiss legal answer starting from a legal question?
Quick comparison: DeepJudge and Silex
DeepJudge and Silex share a common ambition: helping lawyers work faster with AI. Their main difference lies in the source of reasoning. DeepJudge focuses on access to a firm's or organization's internal knowledge. Silex focuses on Swiss legal research, legal sources and the construction of a legal answer.
Positioning
DeepJudge
Precision AI search and AI workflow platform for legal teams.
Silex
Swiss legal AI focused on research, analysis and legal reasoning.
Main source
DeepJudge
Internal firm knowledge: DMS, documents, precedents, matters, emails, intranet and other systems.
Silex
Structured and verifiable Swiss legal sources to produce sourced answers.
Use cases
DeepJudge
Internal search, precedent search, multi-document chat, matter overview, workflows and agents connected to firm data.
Silex
Swiss legal research, source-grounded analysis, synthesis and preparation of legal answers.
Deployment
DeepJudge
DeepJudge cloud, customer cloud or on-premises, with choice of AI model and residency according to DeepJudge.
Silex
Swiss solution focused on confidentiality, Swiss hosting and local legal use.
Security
DeepJudge
SOC 2 Type II, ISO 27001, synchronized permissions, ethical walls, audit logs and no training on data according to DeepJudge.
Silex
Swiss hosting, confidentiality and zero training on customer data.
What is DeepJudge?
DeepJudge presents itself as a legal AI platform that starts with "everything your firm knows". Its official site explains that DeepJudge transforms institutional knowledge into structured, governed intelligence so legal teams can build AI applications, LLM agents and workflows.
The platform mainly targets internal knowledge scattered across a firm's systems: SharePoint, DMS, OneDrive, HighQ, emails, intranet, matters and documents. The goal is to let lawyers quickly retrieve precedents, templates, wording, negotiation history or information linked to a client or matter.
DeepJudge Knowledge Search
DeepJudge's product page describes Knowledge Search as AI search able to retrieve relevant language, concepts and documents from the firm's collective knowledge. DeepJudge says it integrates internal knowledge systems, documents, experience, intranet and metadata used by legal teams.
DeepJudge also emphasizes the absence of complex migration: data remains in its source system, the index respects existing permissions and ethical walls, and the solution can be hosted in public cloud, private cloud or on premises. This approach is particularly suited to firms that already have a significant internal document estate.
DeepJudge AI Workflows
DeepJudge is not limited to search. Its documentation also presents AI Workflows: workflows and multi-model agents connected to internal firm data. According to DeepJudge, these workflows can produce narrative reports on search results, answer questions about documents, summarize matters or let teams create their own AI workflows.
DeepJudge's media kit states that these workflows are built on DeepJudge Knowledge Search and allow firms to build, manage, orchestrate and govern AI workflows without restructuring or uploading their data. This positions DeepJudge as a platform for internal knowledge and automation.
DeepJudge and CMS Switzerland
Microsoft published a case study on DeepJudge's use by CMS Switzerland. It states that DeepJudge helps CMS Switzerland better leverage its internal knowledge with AI search and workflows built on Microsoft Azure, including Azure OpenAI Services, Azure Kubernetes Service, Azure Blob Storage and Microsoft Defender for Cloud.
The case study specifies that data residency in Switzerland was an important requirement for CMS Switzerland and quotes Stefan Brunnschweiler, Managing Partner at CMS Switzerland, saying that data security was a priority and that Microsoft hosting in Switzerland was a convincing factor.
Silex: Swiss legal AI focused on legal sources
Silex addresses a different need. Where DeepJudge first targets a firm's internal knowledge, Silex helps legal professionals handle a Swiss legal question: identify relevant sources, understand their scope, produce a synthesis and structure an answer.
For a lawyer, notary or in-house counsel, legal research is not limited to retrieving an old internal document. It also requires working with legislation, case law and applicable legal sources, then building controllable legal reasoning. This is the layer of Swiss law analysis where Silex positions itself.
To go further, see legal AI, legal analysis and AI case law.
Internal knowledge or legal research?
The difference between DeepJudge and Silex is easy to understand with one question: "where is the value I want to leverage?" If the value lies in internal documents, templates, precedents, emails and firm matters, DeepJudge is designed to make that knowledge findable and actionable.
If the value lies in Swiss legal sources and in building legal analysis, Silex answers that need more directly. The goal is not only to find a document, but to understand applicable rules, compare sources, verify references and formulate a useful answer.
Security and confidentiality
DeepJudge publishes a security page stating that the platform is SOC 2 Type II and ISO 27001 certified. It also mentions encryption at rest and in transit, continuous synchronization of permissions with source systems, respect for ethical walls, authentication, configurable audit logs, indexing controls and no training on customer data.
DeepJudge also states that it can be hosted in its cloud, the customer's cloud or on premises, with choice of AI model and residency. For legal organizations, this allows deployment to be adapted to internal requirements, confidentiality rules and contractual constraints.
Silex also emphasizes confidentiality, Swiss hosting and zero training on customer data. In every case, a law firm or legal department must check contractual guarantees: subprocessors, residency, logs, retention, operator access, deletion and the exact scope of indexed data.
When DeepJudge may be the right choice
DeepJudge may be particularly relevant for a law firm or legal team that already has a large volume of internal documents and wants to make them usable: precedents, templates, matters, correspondence, emails, knowledge bases, DMS or SharePoint data. The tool aims to provide quick access to the firm's collective memory.
DeepJudge may also fit if the organization wants to build AI workflows or agents connected to its own data while respecting existing permissions. For large firms, this institutional knowledge logic can become a strategic lever.
When Silex may be the right choice
Silex may be more suitable when the main need is Swiss legal research: asking a legal question, obtaining a sourced analysis, checking references, understanding case law and preparing a usable answer. The use starts with a legal question, not with an internal document database.
Silex is also relevant for teams that want to save time in daily legal reasoning without deploying a platform to index all of their internal knowledge. For professional use cases, see also AI for lawyers and AI notary.
DeepJudge vs Silex: how to decide?
- Internal knowledge: if the challenge is finding your firm's documents and precedents, DeepJudge is highly relevant.
- Swiss legal sources: if the challenge is analyzing a Swiss legal question, Silex directly addresses that need.
- AI workflows: if you want to build agents connected to your DMS and internal data, DeepJudge is designed for that use.
- Legal answer: if you want to start from a question and obtain sourced analysis, Silex is more directly oriented to that flow.
- Deployment: compare integration time, data to index, permissions, residency and contractual guarantees.
To evaluate Silex on concrete Swiss law cases, you can book a demo. If you also compare with general AI tools, ChatGPT vs Silex explains why Swiss legal specialization changes the use case.
FAQ: DeepJudge vs Silex
Is DeepJudge a legal AI?
Yes. DeepJudge presents itself as an AI platform for legal teams, focused on internal knowledge search, AI workflows and agents connected to firm data.
What is the main difference between DeepJudge and Silex?
DeepJudge primarily targets the use of internal knowledge from a firm or organization. Silex is a Swiss legal AI focused on research, analysis and reasoning in Swiss law.
Does DeepJudge use customer data to train its models?
DeepJudge's security page states that DeepJudge does not train on customer data, ensuring that it remains private and secure.
Can DeepJudge and Silex be complementary?
Yes. DeepJudge can help leverage a firm's internal documents and precedents, while Silex can help analyze Swiss legal sources and formulate a sourced legal answer.
Which tool should you choose for Swiss legal research?
If the question concerns your internal documents, DeepJudge is designed to retrieve and use that knowledge. If the question concerns Swiss law and requires sourced analysis, Silex is designed for that use.
