LexisNexis Releases Gen AI Tool To Public

Five months after launching the commercial preview of its new generative artificial intelligence platform in May, LexisNexis Legal & Professional announced the general availability of the new chatbot on Wednesday.

Called Lexis+ AI, the chatbot includes legal citations in its responses. LexisNexis said this feature will reduce the risk of invented content, which is sometimes referred to as "hallucinations," and will deliver more accurate results.

When Law360 Pulse asked about the pricing for Lexis+ AI on Tuesday, LexisNexis responded that "details related to pricing will be shared directly with clients and will be available at commercial launch."

"Lexis+ AI gives legal professionals a significant competitive advantage by driving improved speed, productivity, and work quality gains for law firms and their clients," Sean Fitzpatrick, CEO of LexisNexis North America, UK and Ireland, said in a statement.  

Several BigLaw firms tested Lexis+ AI following the May preview announcement, including Baker McKenzie, Reed Smith LLP and Foley & Lardner LLP. LexisNexis said corporate legal departments, small law firms and U.S. courts also tested the product.

LexisNexis said the legal citations in the tool are from its repository of accurate and exclusive legal content. This includes Shepard's Citations functionality, which refers to how cases and legal information are validated. Lexis+ AI users can add specific citations to check for accuracy and can give feedback when a citation might be wrong.

The tool also addresses data security and privacy concerns by purging uploaded documents at the end of each session. Users can delete their prompt conversation history, and the interactions are also encrypted.

LexisNexis, part of RELX, said it follows RELX Responsible AI Principles and that the technology was developed with human oversight.

Lexis+ AI employs multiple large language models, which refer to the types of algorithms that power generative AI. This flexible, multimodel approach includes Anthropic's Claude 2, which is hosted on Amazon Bedrock from Amazon Web Services, and OpenAI's GPT-4 and ChatGPT, which is hosted on Microsoft Azure.

"LexisNexis was an early adopter of Amazon Bedrock, using the service to customize a foundation model and launch Lexis+ AI on AWS," Scott Liska, a vice president at Amazon Web Services, said in a statement. "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."

The features of Lexis+ AI include conversational search for legal research and summarization. Users can also upload and draft legal documents.

--Editing by Jill Coffey.

Law360 is owned by LexisNexis Legal & Professional, a RELX Group company.

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