DeepJudge and CASUS come up in the same conversations at Swiss law firms surprisingly often. That makes sense - both are oriented toward the Swiss legal market, both work with legal documents, and both promise to save time. But anyone who looks at both tools closely will notice quickly: they solve different problems. This comparison explains what sets them apart, where they work well together, and which tool fits which use case better.
What is DeepJudge?
DeepJudge is a Swiss legal AI platform focused on knowledge search. The system searches a law firm's internal document inventory - contracts, memos, judgments, briefs - and makes that knowledge accessible through a semantic search engine. The core question it answers is: "Have we done this before?" or "What did we write in similar cases?".
That is a real need. In large firms with thousands of documents, valuable institutional knowledge disappears into folder structures. DeepJudge addresses exactly that: finding what has already been produced.
DeepJudge has since expanded beyond pure search: AI Workflows and multi-model agents run on top of the indexed knowledge - summarizing entire matters, answering questions about documents, and producing work product grounded in the firm's own material. These workflows can be assembled in a low-code or no-code builder. They are configured around the firm's internal inventory rather than shipped as ready-made, Switzerland-specific document tools.
Why firms look for a complement
DeepJudge is strong when it comes to retrieving existing knowledge, and its agents can analyze and summarize documents. What it is less geared toward out of the box is the editing-centric workflow: taking a single incoming contract, checking it against a Swiss playbook, and revising clauses directly inside the Word document - or building a due diligence matrix across a hundred contracts without configuring a workflow first. With DeepJudge these are things you build; with CASUS they ship ready-made and Switzerland-specific.
Anyone who reviews, negotiates, and redrafts contracts daily needs more than a search engine. The work starts after finding - and that is precisely where CASUS begins. This is less a weakness of DeepJudge than a question of product focus: the two tools cover different phases of legal work.
There is also this: many Swiss teams operate without a large internal document inventory - smaller firms or in-house teams that primarily process incoming contracts from counterparties, for example. For them, knowledge search is less relevant than direct analysis of the document in front of them.
What a document work tool needs to do
Anyone looking for a tool that actively supports contract work should check for the following:
Can it analyze a contract from the relevant party's perspective and prioritize risks?
Can it be benchmarked against an internal playbook or a standard?
Can suggested changes be applied directly into a Word document?
Does it support research in public Swiss case law - cantonal and federal?
Does it meet Swiss data protection requirements: hosting in Switzerland or the EU, no data transfer to the US, no human review?
These points determine whether a tool genuinely fits the daily workflow of a Swiss law firm.
CASUS: document work at the center
CASUS is a Swiss legal AI platform built specifically for Swiss law firms and in-house legal teams. It works directly in Microsoft Word or in the web app. Hosting is in Switzerland and the EU - no data transfer to the US, zero data retention, and no human review.
Contract analysis and risk assessment
The Risk & Quality Review analyzes contracts from the perspective of the relevant party. CASUS identifies risks and red flags, assigns them to the appropriate party, and prioritizes each finding by severity (low / medium / high). Every finding comes with concrete drafting options that can be applied directly in Word - correctly formatted, without copy-paste.
Benchmarking against your playbook
The Benchmark workflow checks a document against a reference standard - such as the firm's internal playbook or established best practices for SPAs, NDAs, or DPAs. The output shows not only which clauses are missing or deviating, but also a percentage match score. Missing clauses can be inserted directly at the right place in the document.
AI Chat and Agent Mode
The AI Chat allows users to ask questions about the document and jump directly to the relevant passage. In Agent Mode, CASUS executes changes in the document itself: inserting clauses, rewriting text, checking consistency across the entire document. Structure, numbering, and formatting are all respected.
Legal research across 660,000+ decisions
The Legal Research mode searches a database of over 660,000 cantonal and federal court decisions from Switzerland, supplemented by statutory law. Relevant reasoning sections are previewed directly in the search results - no need to open individual judgments separately. Outputs are structured and source-based: risk analyses, lines of argument, recommendations.
Bulk analysis with the AI Data Room
The AI Data Room enables parallel analysis of dozens or hundreds of documents. Extraction fields are defined by prompt, and the result is a structured table - suitable for due diligence, compliance reviews, or building a clause matrix across multiple contracts.
Proofreading before sending
Proofread checks contracts and pleadings for spelling, grammar, terminology consistency, cross-references, missing definitions, and open placeholders. Swiss spelling conventions are applied.
Comparison table: DeepJudge vs. CASUS
Feature | DeepJudge | CASUS |
|---|---|---|
Core function | Knowledge search in internal documents; plus configurable AI workflows | Active document work: analysis, editing, research |
Pre-configured Swiss contract analysis / risk assessment | Not out of the box (buildable via custom workflows) | Yes - party-aware, with priority levels and drafting options |
Pre-built playbook benchmark | Not out of the box | Yes - incl. percentage match and clause suggestions |
AI agents that edit the document | Agents produce work product; no native Word redlining | Yes - Agent Mode edits directly in Word, incl. formatting |
Legal research in public Swiss case law | Searches the internal inventory; no public case-law corpus | Yes - 660,000+ decisions (cantonal + federal) |
Due diligence matrix across many documents | Buildable across documents via workflows | Yes - AI Data Room with user-defined extraction fields |
Native Microsoft Word add-in | Not known; browser-based search/workflow interface | Yes - as an add-in |
Hosting | Flexible (cloud, private cloud, or on-prem) | Switzerland / EU |
Target audience | Large firms with an internal document inventory | Swiss law firms and in-house teams of all sizes |
Information about DeepJudge is based on publicly available product information (as of June 2026) and may vary by deployment and configuration; specific details should be verified directly with the provider.
Who uses CASUS most
CASUS fits law firms and in-house teams that regularly analyze, redraft, and negotiate contracts - regardless of team size. Anyone working primarily with NDAs, SPAs, DPAs, or supplier agreements, and who values a direct Word integration, will find in CASUS a tool that covers the workflow from analysis through to the final version.
Larger firms that need both knowledge search and active document work could combine both tools - DeepJudge finds the best precedent or template document in the internal knowledge base, and CASUS reviews and revises the contract at hand against it in Word. That is not an either-or decision.
Try CASUS
Anyone who wants to see whether CASUS fits their working style can test the platform directly. A free account is available at app.getcasus.com/signup. Details on data security and hosting are available on the security page.
FAQ
What is the main difference between DeepJudge and CASUS?
DeepJudge specializes in searching internal firm documents - it makes existing institutional knowledge findable and offers configurable AI workflows on top of it. CASUS focuses on active work with individual or multiple documents: pre-configured risk analysis, benchmarking against playbooks, direct editing in Word, and legal research in public Swiss case law.
Does DeepJudge do contract review?
DeepJudge's agents can analyze documents, summarize them, and answer questions about them, and a contract review can be built as a dedicated workflow. Unlike CASUS, however, DeepJudge does not ship a ready-made, Switzerland-specific contract analysis with severity levels and Word redlining out of the box.
Can CASUS be used alongside DeepJudge?
Yes. The two tools barely overlap. DeepJudge searches the existing inventory; CASUS works on the document in front of you. Firms that need both can use them in parallel - DeepJudge to find the precedent, CASUS to work on it in Word.
How many court decisions does the CASUS Legal Research database contain?
The database covers over 660,000 cantonal and federal court decisions from Switzerland, plus statutory law. Relevant reasoning sections are displayed directly in the search results. DeepJudge, by contrast, searches the firm's internal inventory rather than a public case-law corpus.
Is CASUS compliant with Swiss data protection law (DSG) and GDPR?
CASUS hosts data in Switzerland and the EU. There is no data transfer to the US, zero data retention, and no human review of processed documents. Details are on the security page.
Does CASUS work directly in Microsoft Word?
Yes. CASUS is available as a Microsoft Word add-in. Risk analyses, benchmarks, and Agent Mode changes can all be carried out directly in the Word document, without switching between applications.
What is the Benchmark workflow in CASUS?
The Benchmark workflow compares a document against a reference standard - for example, an internal playbook or best practices for NDAs, SPAs, or DPAs. The output shows missing clauses, deviations, and a percentage match score. Missing clauses can be inserted directly into the document.
Who is CASUS suited for?
CASUS is aimed at Swiss law firms and in-house legal teams of all sizes that regularly analyze, benchmark, redraft, or bulk-process contracts.
How does CASUS differ from Harvey or Legora?
CASUS is explicitly oriented toward the Swiss legal market: Swiss hosting, Swiss case law in the legal research database, and no data transfer to the US. Harvey and Legora are international platforms without comparable Switzerland-specific alignment.
