AI-First Tool Unlocks the Power of Every Document for Every Attorney

 

SEATTLE, May 27, 2025–Lighthouse, a leader in technology-enabled eDiscovery, compliance, and information governance services, today announced the availability of Lighthouse AI Search, an AI-first search tool that allows litigation teams to better identify evidence, understand narratives, and build case strategy.

Designed specifically for the scale and complexity of discovery, Lighthouse AI Search allows attorneys to surface critical information, understand case narratives, and build strategies earlier and more confidently. The product’s AI-first approach allows end users to interrogate their data without the need for specialized search syntax or AI expertise—and without first culling it down using search terms.

Built on proprietary Large Language Model (LLM)-based AI, Lighthouse AI Search benefits from the best of both predictive and generative AI, achieving unparalleled cost-efficiency, accuracy, and the ability to scale to hundreds of millions of documents—empowering attorneys to uncover important insights and accelerate decision-making.  

“This AI-first search is a complete game changer for litigation since it enables anyone, regardless of their familiarity with traditional search syntax, to query an entire document set and get not just an answer to their question, but also the specific documents and passages within those documents that underpin how the answer was reached,” says Dan Brassil, Executive Director, Search at Lighthouse. “It’s transformative because it works for anyone, anytime, anywhere.”

Lighthouse AI Search adds value to every stage of litigation, from early case assessment (ECA) to the courtroom. Use case examples include:

● ECA – Quickly surface key facts before investing in deep review

● Case Strategy Development – Discover insights that may be buried in the data set

● Inbound Production Analysis – Easily assess opposing productions without exhaustive manual review

● Deposition and Trial Preparation – Rapidly access critical information quickly, even mid-hearing

“Having the ability for any attorney to interrogate all the data related to a matter is tremendous,” says Christian J. (CJ) Mahoney, Counsel and Global Head of eDiscovery and Litigation Technology at Cleary Gottlieb. “Lighthouse AI Search empowers our attorneys to easily and quickly find key information at any point during a matter, meaning they can develop case strategy sooner, validate or investigate new information easily, and make confident, data-informed decisions.”

While traditional searches require identifying the precise keywords upfront, Lighthouse AI Search “reads” and analyzes the entire document population, not just documents that may be returned as the result of a given search, enabling users to uncover critical information they may not even know existed. Lighthouse AI Search is grounded solely in the documents for each specific matter and does not rely on external inputs to build the model, ensuring answers are accurate to the information contained in the document set and limiting hallucination risk.

Users receive conclusive answers to their queries in the form of an AI-summarized answer, not just a list of possible results, and a selection of documents and highlighted passages to allow them to easily verify and dive deeper into the details of each answer. Lighthouse AI Search works out of the box without requiring specialized AI knowledge and is designed to be used by litigators who are generally not experts in AI or prompt engineering.

“AI that can be used by lawyers themselves offers tremendous value to the legal market,” says Ron Markezich, CEO at Lighthouse. “Since our first AI solution in 2019, we’ve focused on service-delivered solutions that are pragmatic and high impact for our clients. With Lighthouse AI Search, we’re expanding that focus by placing the power of AI directly into the hands of attorneys, enhancing outcomes and driving real business value.”

 

About Lighthouse

Lighthouse is a global leader in eDiscovery and information governance solutions to manage the increasingly complex landscape of enterprise data for compliance and legal teams. Since our inception as a local document copy shop in 1995, Lighthouse has evolved with the legal technology landscape, anticipating the trends that shape legal practices, information management, and complex eDiscovery. In 2019, Lighthouse launched its first large language model-based AI solution, and since then, it has continued expanding its portfolio of industry-leading AI. Whether reacting to incidents like litigation or governmental investigations or designing programs to proactively minimize the potential for future incidents, Lighthouse partners with multinational industry leaders, top global law firms, and the world’s leading software provider as a channel partner. For more information, visit lighthouseglobal.com.