Filevine Adds Citation Checks to LOIS Legal Research

September 02, 2026
Filevine added a citator and hallucination checking features to LOIS Legal Research. The tools verify citations, quotes, and whether cited opinions support claims in legal briefs.

Filevine announced in a press release a new citator and hallucination checking features for LOIS Legal Research. The tools are designed to check whether cited cases exist, whether quotes are accurate, and whether opinions support the claims made in a legal brief.

The citator reads case law and shows whether a holding remains good law. Filevine said it can also flag negative treatment that other citation checking tools may miss.

LOIS assigns a status to each citation and flags unverified cases before filing. Filevine said its legal team tested LOIS against 68 federal filings that courts had already sanctioned, checking 2,073 citations and confirming 174 severe errors.

The company also said LOIS found all 14 silent negative treatments in a case set, while Westlaw KeyCite and Lexis Shepard's found none. Filevine plans a live demonstration of the features on September 10.

We hope you enjoyed this article.

Consider subscribing to one of our newsletters like Legal AI Weekly or Daily AI Brief.

Also, consider following us on social media:

Legal AI AI Brief AI Brief (X)

More from: Legal AI

08/26
AIA Contract Documents Adds AI Assistant for Construction Contracts
08/26
iManage and Thomson Reuters Connect Legal AI Workflows
08/26
Ask.Legal Expands Legal AI Platform to Australia and Singapore
08/25
RelativityOne Adds Gemini Enterprise for Legal Integration
08/25
Google Cloud Introduces Gemini Enterprise for Legal in Preview

Subscribe to Legal AI Weekly

The source for the Legal AI software news, analysis, emerging applications: contract review, e-discovery, research.

AI Token Webinar

Market report

2025 Generative AI in Professional Services Report

Thomson Reuters

This report by Thomson Reuters explores the integration and impact of generative AI technologies, such as ChatGPT and Microsoft Copilot, within the professional services sector. It highlights the growing adoption of GenAI tools across industries like legal, tax, accounting, and government, and discusses the challenges and opportunities these technologies present. The report also examines professionals' perceptions of GenAI and the need for strategic integration to maximize its value.

Read more

You May Also Like