Vienna vs Harvey
Last reviewed: October 9, 2026
Vienna
Vienna is a legal operations AI agent that works inside Nougat, a legal workspace. You email Vienna at vienna@nougat.law or message her in Slack or Microsoft Teams, and she does the work across your firm's email, calendar, documents, practice management, and court dockets, then reports back in the same thread.
Harvey
Harvey is a generative AI platform for law firms and corporate legal teams. Harvey describes it as supporting research, drafting, document analysis, and workflows, and it is widely adopted by large law firms.
Side by side
| Area | Vienna | Harvey |
|---|---|---|
| How you work with it | An agent you delegate matter work to by email, Slack, or Teams. She works across your connected tools and replies in the same thread. | A platform your team logs into for AI-assisted research, drafting, and document analysis. |
| Legal research | Finds and summarizes authorities with links to the source opinions, and checks case-law quotes against the original opinion text before showing them. | AI-assisted research and analysis across legal and firm documents, per Harvey. |
| Citation checking | Checks every cite in a draft, by email or in the public Cite Checker, to confirm each authority exists and its quotes match. | Not described by Harvey as a standalone cite checker. |
| Drafting | Drafts complaints, motions, client correspondence, and engagement letters inside the matter, in your firm's voice. | Drafting and document analysis across transactional and litigation work. |
| Dockets and deadlines | Connects to PACER for federal dockets, pulls deadlines from filings and correspondence, and keeps them on the matter calendar. | Not positioned as a docket-monitoring tool. |
| Where it works | Gmail, Outlook and Microsoft 365, Slack, Teams, Zoom, Google Drive, OneDrive, Dropbox, iManage, Clio, PACER, and firm single sign-on. | See Harvey for current integrations. |
| Built for | Litigators, small and mid-size firms, legal teams, and businesses, with workspaces for civil litigation, criminal defense, startups and VC, and in-house teams. | Large law firms and corporate legal departments. |
Harvey details are summarized from Harvey's public descriptions. Check Harvey for current features and pricing.
Choose Harvey if
You are a large firm or legal department looking for an enterprise AI platform across practice groups.
Choose Vienna if
You are a litigator, small or mid-size firm, or legal team that wants an agent to take work off your plate by email, Slack, or Teams, with dockets, deadlines, cite checking, and drafting tied to each matter.
Questions
Is Vienna only for small firms?
No. Vienna is built for litigators, law firms, legal teams, and businesses, with workspaces for civil litigation, criminal defense, startups and VC, and in-house teams.
Is Vienna a law firm?
No. Vienna is legal software made by Vienna Legal Technology Corporation. Nothing Vienna produces is legal advice, and a qualified person should review her work before it is filed, sent, or relied on.
What is the difference between Nougat and Vienna?
Nougat is the legal workspace that holds your matters, documents, dockets, and connections. Vienna is the AI agent who works in it. You give Vienna work by email, Slack, or Teams.