# CASUS Reviews
**Vendor:** CASUS Technologies AG  
**Category:** [AI Legal Assistant Software](https://www.g2.com/categories/ai-legal-assistant)
## About CASUS
What is CASUS? CASUS is the Swiss Legal AI platform built for law firms and in-house legal teams across Switzerland and the DACH region. While most global legal AI tools focus on US law or English-language workflows, CASUS is designed from the ground up for the Swiss legal market. Strict Swiss data residency, coverage of Swiss federal and cantonal jurisprudence, and full compliance with GDPR and the Swiss nFADP are built into the foundation of the platform. ONE WORKSPACE, NOT ANOTHER TOOL TO ADOPT CASUS integrates directly into Microsoft Word and the browser. Legal professionals keep working where they already work. No new IT rollout, no change management, no complex onboarding process. This integration-first approach makes CASUS particularly suitable for teams that need to adopt AI quickly without disrupting existing workflows or system landscapes. SIX CORE MODULES FOR DAILY LEGAL WORK → Document Review. Identifies risks, red flags, and weaknesses in any legal document. Findings are structured by party, prioritized by severity, and include ready-to-insert wording suggestions that can be applied in Word with one click. → Benchmarking. Compares any document against the firm's internal playbook or team standard. Deviations and missing clauses are flagged, a measurable match score quantifies alignment, and standard clauses can be inserted directly into Word with correct numbering and formatting. → Legal Proofreading. Goes beyond grammar and spellcheck. Automatically checks definitions, cross-references, numbering consistency, and logical contradictions. Each finding comes with a concrete correction that can be applied cleanly. → Agentic AI Chat. Treats any legal document as a source of truth. Users ask questions in natural language, locate exact passages, rewrite sections, and execute changes in Word while preserving structure, numbering, and formatting. → Legal Research. Provides access to over 660,000 Swiss federal and cantonal rulings. Every response is grounded in verifiable sources, designed for professional use, and integrated directly into the AI Chat workflow. → AI Data Room. Runs bulk analysis across dozens or hundreds of documents in parallel. Ideal for due diligence, compliance checks, and portfolio review. Results are exported as structured tables ready for Excel. DATA SECURITY BUILT FOR PROFESSIONAL SECRECY Legal AI demands stricter standards than consumer AI tools. CASUS is designed with this in mind. → Swiss hosting. All customer data is stored exclusively in Switzerland on ISO-27001-certified infrastructure. → European processing. Data processing remains within Europe. No transfers to the United States or third countries without an adequate level of data protection. → Zero Data Retention. A strict Zero Data Retention policy applies to every AI provider in the stack. Customer content is never used to train models and not retained after a request is processed. → No human access. No CASUS employee accesses customer documents at any time. Microsoft's standard abuse monitoring is explicitly disabled for CASUS to protect attorney-client privilege. → Compliance. Fully compliant with the EU General Data Protection Regulation (GDPR) and the revised Swiss Federal Act on Data Protection (nFADP). Unlike public AI tools like ChatGPT, CASUS is a closed, governed legal AI environment suitable for confidential documents and mandate data. A SWISS COMPANY WITH ACADEMIC ORIGINS CASUS Technologies AG was founded in 2020 as a spin-off from the University of St. Gallen (HSG) and is headquartered in Zurich. The platform is used by Swiss and DACH law firms as well as in-house legal teams who process legal documents at scale and cannot compromise on Swiss data residency or professional secrecy.






- [View CASUS pricing details and edition comparison](https://www.g2.com/products/casus/reviews?section=pricing&secure%5Bexpires_at%5D=2026-05-15+17%3A45%3A53+-0500&secure%5Bsession_id%5D=bf03ad0f-7277-46df-b452-d8e3237c65a7&secure%5Btoken%5D=bcd76187185f11ac82d400638e64cfb3c685bbdfab046b72aca4b6d575ed76c2&format=llm_user)

## CASUS Features
**Generative AI - AI Legal Assistant**
- Text Generation
- Text Summarization

**LLM and NLP - AI Legal Assistant**
- Natural Language Processing (NLP)

**Technology Benefit - AI Legal Assistant**
- Drafting Assistance
- Review Automation
- Due Diligence
- Legal Analytics and Insight

**Consistency, Accuracy and Efficiency - AI Legal Assistant**
- Consistency and Quality Assurance

**Automation using Legal Tech - AI Legal Assistant**
- Litigation Support

**Compliance and Data Security - AI Legal Assistant**
- Data Protection

**Ease of Use and Adaptability - AI Legal Assistant**
- Ease of Use and Adaptability

**Agentic AI - AI Legal Assistant**
- Autonomous Task Execution
- Multi-step Planning
- Cross-system Integration
- Adaptive Learning
- Natural Language Interaction
- Proactive Assistance
- Decision Making

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