Lucio AI has launched Lucio Research, a legal research agent released as an open beta through Lucio Labs. The tool searches, screens, reads and cites across hundreds of legal sources for each question. It is free to use for one month, with up to 25 searches per user.
The launch addresses a familiar constraint in legal research. Much of the time spent on a research question goes into finding and screening material rather than analysing it and research usually ends when time runs out rather than when every relevant authority has been read. Lucio says the beta is designed to test how far that limit can be pushed.
Lucio Research runs in two modes. According to the company, Standard mode runs a focused search of the core authorities and typically reviews 300 to 500 sources per question. In-depth mode explores about three times as many sources and checks for gaps, usually returning an answer in under three minutes. The company says it often reviews 800 to 1,500 sources in this mode and more than 2,000 on some questions. Lucio says that, in its testing, public AI models usually review far fewer sources and that a deep research query on ChatGPT takes around 10 minutes.
Each answer cites its authorities inline. A separate view lists every source the tool considered, sorted into highly relevant, relevant, flagged and discarded, so a lawyer can see what was set aside as well as what was relied on.
Lucio attributes the speed to its architecture rather than to reading less. In place of a pure agent loop, in which a model takes one step at a time, the system uses fast decision models and an architecture built to maximise parallel work.
The company says the tool is optimised for case law research across the US, the UK and India and that its analysis of regulation and legislation is still being improved.
Vasu Aggarwal, Co-Founder, Lucio AI, said
"Legal research has always been limited by how much a lawyer can read before time runs out. With Lucio Research, we wanted to see how far that limit could move. The citations matter as much as the speed. Every answer shows what it read, what it relied on and what it set aside, so a lawyer can check the work before using it."
Darsan Guruvayurappan, Co-Founder, Lucio AI, added,
"The engineering problem is that breadth usually costs time. A system working through sources one step at a time gets slower with every source it adds. We built Lucio Research around fast decision models and a parallel architecture, so reading more does not mean waiting longer. We are opening it up for free because we want lawyers to test it on real questions and what they tell us will go straight into the main product."
Lucio Research is available as an open beta at https://research.lucioai.com, free for the next month from today. It sits behind Lucio's SOC 2 Type II and ISO 27001:2022 certifications and the company states that no customer data is used to train models.
The launch follows the general availability of Lucio Elevate in September, which turns legal requests into finished deliverables such as spreadsheets, drafted documents and deal diagrams.
Full details on Lucio Research, including how it works and where it is strongest today, are available on Lucio’s blog.