The professional AI
platform for lawyers
Built for professionals who need fast, accurate answers grounded in verified primary law.
OUR STORY
OpenCase was built on a simple belief: legal research should be faster. For decades, attorneys have used clunky, fragmented tools that waste time and energy. We set out to build something genuinely useful—AI that cuts through the noise and gets you the answers that matter.
Trained on verified legal databases
Trained on Cornell LII's authoritative datasets of U.S. statutes and Supreme Court opinions.
Uses daily indexes from open-source corpus of federal & state opinions and RECAP dockets.
Ingests authenticated PDFs from govinfo's Federal Register, CFR & public-law archive.
Backed by leading attorneys, in-house teams, and rising legal talent
Attorney
“It is the best AI I have used, much better than OpenAI.”
Jeffrey
Attorney at boutique firm
AI for every legal workflow
From research to drafting to case tracking, OpenCase brings the core tools of legal practice into a single, unified system.
Context-aware document editing
Rewrite, expand, or tighten sections with edits grounded in your document's facts and arguments.
File storage and analysis
Keep your documents in one place and understand them with deeper legal context.
Find law by jurisdiction
Stay grounded in the law that applies to your jurisdiction, ensuring your research is relevant.
Edit directly in Microsoft Word
Work with OpenCase inside Word so research and drafting stay in the same place.