How CASUS compares to Omnilex

Yes, Omnilex is a strong, Swiss-built legal AI used by thousands of Swiss lawyers, with deep legal research. CASUS is also built for Swiss law, but its focus is the document work, drafting, reviewing and proofreading directly in Microsoft Word. Many firms choose based on whether their day is mostly research or mostly document work.

Both are Swiss legal AIs hosted in Switzerland with a Word add-in. The difference is the main use case: Omnilex is the research specialist, a workspace for legal Q&A and case-law research. CASUS is the all-rounder for document work, drafting, reviewing, benchmarking and a region-specific proofread in Word, with legal research built in when you need it.

Omnilex is priced at about CHF 180 per user per month, or CHF 150 per user on a team licence, with a 14-day trial. CASUS is CHF 120 per user per month billed annually or CHF 145 on monthly billing, has no seat minimum and includes all modules. On a monthly per-seat basis, CASUS is the lower-cost option.

For document work, drafting, reviewing, proofreading and finalising in Word, CASUS is built for exactly that, including a region-specific legal proofread that Omnilex does not offer as a module. For deep legal research, Omnilex is a strong, focused workspace. Many teams run them for different jobs.

Yes. Both CASUS and Omnilex host in Switzerland, keep your data in the country and comply with Swiss data-protection rules (revDSG). Data residency is not the deciding factor between them; workflow focus and price usually are.

Yes. CASUS has legal research with citations built into the Word workflow, so you can look something up without leaving your draft. But research is Omnilex’s specialty and it goes deeper there. CASUS is the all-rounder: drafting, review, benchmarking, a region-specific proofread and a multi-document data room, with research included.

Yes. CASUS offers a free trial and self-service signup with no sales call required, billed monthly or annually with no seat minimum. You can start in minutes, directly inside Microsoft Word.