AI Legal Research
Legal research where every citation is read, not assumed.
LitigusAI is an AI legal research platform built for litigators. Research runs against the Litigus Library — LitigusAI's own law library of more than 10.8 million opinions covering every Federal and State court — searchable semantically and by legal proposition. Hundreds of searches run in parallel, so research that would take an afternoon runs in minutes, and every citation in delivered work is checked against the opinion itself before it reaches you.
Why it is different
Research that carries the whole case with it.
One continuous understanding of the matter
Research tools answer only the question in front of them, with no memory of the matter behind it. LitigusAI works from the client file on your computer, so every search starts from the facts, the posture, and the work already done.
10.8 million opinions, updated daily
The Litigus Library covers every Federal and State court, with semantic and proposition search. You search the law the way you think about the case, not the way a keyword box demands.
Hundreds of searches in parallel
Purpose-built infrastructure fans a research question out into hundreds of targeted searches and synthesizes the results — minutes, not an afternoon.
Every citation verified
LitigusAI reads each cited opinion and confirms it says what the work product says it says. The verification happens before delivery, not after embarrassment.
Your files never leave your device
Research runs under a strict zero-data-retention policy. No client document is stored on LitigusAI hardware, and nothing is used to train any model.
Questions
Asked and answered.
Is LitigusAI a replacement for Westlaw or Lexis?+
LitigusAI is not a browser-based research terminal. It is a desktop AI associate that does the research as part of the assignment — reading the file, running the searches, and delivering cited, verified work product. Research happens inside the work, not in a separate tab.
How current is the law library?+
The Litigus Library holds more than 10.8 million opinions covering every Federal and State court and is updated daily.
Can I trust the citations?+
Every citation in delivered work is checked against the opinion itself — read, not assumed. As with any associate's work, you review and verify before anything is filed.
What happens to my client's data during research?+
Your files stay on your machine. Model requests run under a strict zero-data-retention policy, and nothing is retained or used to train a model.
Put LitigusAI to work in your practice.
The beta is invitation only. We are selecting a small founding cohort of solo and small-firm litigators, NY and Federal civil practice. Ask for a live demo on a real matter.
Request an invitation