Legal Research AI
The best AI
for legal
research, period.
Carta AI by OpusLaw delivers cite-verified legal research across all jurisdictions — 80% faster than traditional methods, with the accuracy professional practice demands.
✓
Cite-verified accuracy
Cite-verified output
10+
hours saved/week
50+
jurisdictions
Capabilities
Research that goes as deep as your case demands.
80% Faster Research
Complete comprehensive legal research in 1-2 hours instead of 6-8 hours. Carta AI finds relevant precedents and case law faster than any human researcher — and covers more ground.
Case Law Analysis
Search millions of decisions across federal and state courts. Carta AI ranks results by relevance, maps precedent relationships, and surfaces the holdings most likely to support your position.
Cite-Verified Output
Every case is checked for current validity before it reaches you. Overruled, distinguished, and questioned precedents are flagged automatically — no manual Shepardizing required.
Statute & Regulation Research
Complete statutory and regulatory research with real-time updates and cross-references. Understand how laws interact and apply to your specific legal issues across every relevant jurisdiction.
Multi-Jurisdictional Coverage
Research across 50+ jurisdictions and legal systems. From federal courts to international law, Carta AI covers the complete legal landscape with the same depth and accuracy in every forum.
Deep Legal Understanding
Trained specifically on legal databases with understanding of precedent relationships, legal reasoning, and case law connections that general AI tools miss entirely.
Research capabilities
From case law to international treaties.
Carta AI covers every type of legal research — primary sources, secondary analysis, regulatory guidance, and international law — in one platform that understands the legal context behind every query.
Case law and precedent mapping
Federal and state case law search with automatic precedent relationship mapping. See how cases relate to each other, which have been followed or distinguished, and where courts are heading.
Statutory and regulatory research
Search federal and state statutes, agency regulations, and guidance documents with legislative history tracking and cross-reference analysis built in.
International and comparative law
Research international law, treaties, and foreign legal systems in 50+ languages — with the same accuracy as domestic research. Ideal for cross-border matters and international business law.
Plain-language legal queries
Ask research questions in plain English and receive structured, cite-verified answers. No need to master Boolean operators or platform-specific search syntax.
“Carta AI's legal research capabilities are phenomenal. I found a precedent from 1987 that was crucial to my case — something I never would have discovered in traditional research. We won.”
Jennifer Walsh, Esq. — Appellate Attorney, Boston
Get started
Better research. Faster. Cite-verified from the start.
No credit card required. Free tier available. Setup takes under two minutes.