Legal Research AI
The best AI
for legal
research, period.
Carta AI by OpusLaw supports plain-language legal research, case analysis, citation review, and source-aware workflows for attorneys who still verify the final answer.
✓
citation-aware legal research support
Cite-verified output
Plain
language search
Review
attorney oversight
Capabilities
Research that goes as deep as your case demands.
Plain-Language Research
Ask legal research questions in ordinary language and receive organized research paths, authorities, and review notes.
Case Law Analysis
Search case law workflows, organize holdings, compare authorities, and prepare precedent notes for attorney review.
Cite-Verified Output
Citation workflows help flag review questions, but attorneys should independently verify current validity before filing or advising.
Statute & Regulation Research
Organize statutory and regulatory research, cross-references, and review questions tied to the legal issue at hand.
Multi-Jurisdictional Coverage
Support federal, state, and cross-border research workflows while checking source coverage for the specific jurisdiction.
Deep Legal Understanding
Structured around legal research workflows, precedent relationships, legal reasoning, and attorney-verifiable outputs.
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 while preserving jurisdiction assumptions and attorney review.
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.
“Legal research AI should make authorities easier to find and verify, not easier to overtrust.”
OpusLaw workflow principle
Get started
Better research. Faster. Cite-verified from the start.
Review pricing, coverage, privacy terms, and workflow fit before choosing the right plan.