LitArbi and Opus 2 Cases compared
Opus 2 Cases (formerly Magnum) is Opus 2's cloud platform for litigation, arbitration and investigation teams: case documents, chronologies, issues, witnesses and bundles in one shared workspace with AI features. With Opus 2 Hearings and Opus 2 Transcripts the company also runs hearings, evidence presentation and transcription as a service.
Side by side
| Feature | LitArbi | Opus 2 Cases |
|---|---|---|
| What it is | Desktop app for exhibits and citations (Mac, Windows) with a Word add-in; optional self-hosted LitArbi Server | Cloud case management for litigation and arbitration; hearing and transcript services alongside |
| Runs on | macOS 14+ and Windows 10/11 apps; LitArbi Web in the browser (with LitArbi Server); iPad & Android after the beta | Web browser (G-Cloud listing: Microsoft Edge, Chrome) |
| Where your data is | On the lawyer's computer; shared matters on the firm's own web hosting (LitArbi Server), end-to-end encryption optional | Opus 2 cloud; its UK G-Cloud listing names UK and EEA storage, selectable by the user |
| Pricing | Free in the beta; then Solo €24/month, Firm €20 per lawyer/month (less from 10 lawyers), Server €20 + €8 per user/month (billed yearly, excl. VAT) | Not published on the vendor’s website; UK G-Cloud 14 listing: £2,500 to £13,500 a licence a month |
| Exhibit numbering per party | Party series (C-, R-, CL-, CWS-, CER-) or Anlage K 1 / Beilage 1; numbered on first citation or in bulk | Stamps can be applied to documents; numbering per party not stated publicly |
| Citing exhibits from Word | Citation pane beside Word on Mac and Windows: pinpoints, full then short form, live fields, renumbering by citation order; LitArbi for Word (beta) cites the same way in Word on the iPad and the web | Not stated publicly |
| Bundles with hyperlinked index | Stamped, paginated hearing bundles with covers and indexes, plus a machine-readable index | Paginated electronic bundles with hyperlinked indices |
| Page / Bates numbering | Bundle pagination and Bates stamps | Paginated bundles; Bates numbering not stated publicly |
| Hyperlinked submissions | Submission PDF hyperlinked to the cited page or paragraph of each bundled exhibit; hyperlinked e-briefs | Links within the hearing bundle and to live transcripts; hyperlinked submissions not stated |
| Works offline | Yes: matters are stored locally; shared matters keep a full working copy offline | Not stated publicly; browser-based cloud service |
| Team / shared matters | With LitArbi Server: shared matters in sync within seconds, team numbering lock, guests free; notes and markings shared between the team's tablets | One cloud workspace for the team, co-counsel and clients; custom-branded client portals |
| Tablet app | LitArbi for iPad & Android, an add-on after the beta: every exhibit offline, presentation on the tribunal screen, hearing clock, markings and notes shared with the team, tappable citations in any PDF, scanned pages searchable on the device, a chronology | No tablet app stated; G-Cloud listing: not designed for use on mobile devices |
| Interface languages | English, German, French, Spanish, Portuguese, Russian, Ukrainian | Not stated publicly |
Where Opus 2 Cases offers more
- Runs hearings as a service: a neutral operator presents the evidence, with real-time or daily transcripts and synchronised audio, in person, virtual or hybrid.
- Private workspaces for each party and the tribunal around one shared hearing bundle, linked to the live transcript.
- AI-assisted document summaries, transcript analysis and timelines, plus issue tracking linked to the evidence.
- Custom-branded client portals and dashboards for case progress.
How we compared
The facts about Opus 2 Cases come from Opus 2 International Limited’s own website, price list and documents as they stood on 4 October 2026; they may have changed since. Tell us about anything outdated through our contact form and we will correct it. Opus 2 Cases is a trademark of its owner; LitArbi is not affiliated with Opus 2 International Limited.