LexisNexis announces the general availability of Lexis+ AI for US customers

LexisNexis Legal & Professional today (25 October) announced the general availability of Lexis+ AI for U.S. customers. Lexis+ AI is a generative AI solution that Lexis says will provide hallucination-free, linked legal citations that are grounded in LexisNexis’ repository of legal content. It checks all citations against Shepard’s to ensure citation validation.  

The solution – first announced in beta in May this year – also offers users the ability to input specific citations to verify accuracy and flag when a citation might be wrong. Customers can give feedback within the product to continually improve product performance, content relevance, and overall product accuracy. 

Lexis+ AI features include conversational search; document drafting (legal arguments, contract clauses and client communications); summarisation of cases; and a document upload capability to enable users to analyse and extract insights from uploaded documents.  

LexisNexis is working with large language models like Anthropic’s Claude 2, hosted on Amazon Bedrock from Amazon Web Services (AWS), and OpenAI’s GPT-4 and ChatGPT, hosted on Microsoft Azure.  

“It’s gratifying to see our longstanding relationship and joint innovation with LexisNexis Legal & Professional continue to grow, especially in this new era of generative AI,” said Scott Liska, vice president of strategic accounts at Amazon Web Services, which in September announced that it is investing $4bn in Anthropic. He adds: “LexisNexis was an early adopter of Amazon Bedrock, using the service to customize a foundation model and launch Lexis+ AI on AWS. The result is a cloud solution that dramatically improves productivity for legal professionals, harnessing the power of LexisNexis’ search and legal citation technology and our shared commitment to security and privacy.”