LexisNexis® Legal & Professional has announced that Lexis+ AI™ is now available to U.S. customer’s Given the legal market skittishness about both the security and reliability of Generative AI, (GAI) the Lexis + AI launch meeting for the legal press focused on how Lexis+ AI will deliver encrypted, secure and reliable results. Jeff Pfeifer, Chief Product Officer, North America and UK, provided the overview an demo.

Reliable research results. Pfeifer explained that the new AI solution is designed to deliver trusted results because the system relies on Lexis authoritative primary and secondary materials combined with Shepard’s citations which provides direct links to supporting authorities for all GAI based answers.

Lexis announced its commercial preview program back in  May 2023. This provided a living laboratory where Lexis could get feedback from users across all segments of the legal market (global law firms, corporate legal departments, small law firms, and U.S. courts).

The Lexis+ AI press release asserts that Lexis+ AI answers offer the fastest GAI  “answers” solution in the market.” The “conversational dialog” can respond to up to five sequential questions.

Hallucination Free At the time of launch Lexis+ AI is the only legal generative AI solution with citations linked in its responses, “providing trusted legal results backed by verifiable authority.” This  minimizes the risk of invented content, or hallucinations, and checks all citations against Shepard’s to ensure citation validation. The solution also offers users the ability to input specific citations to verify accuracy and flag when a citation might be wrong. Customers can give instant feedback within the product to continually improve product performance, content relevance, and overall product accuracy.

Features Lexis+ AI features conversational search, intelligent legal drafting, insightful summarization, and document upload capabilities, all supported by state-of-the-art encryption and privacy technology to keep sensitive data secure:

  • Conversational search simplifies complex and time-consuming legal research by enabling users to conversationally interact with Lexis+ AI, explore new insights, and ask for adjusted and refined output.
  • Document drafting instantly produces legal arguments, contract clauses, and client communications from a simple user prompt.
  • Summarization functionality delivers case summaries in seconds with more content and capabilities coming soon.
  • Document upload capabilities enable users to rapidly analyze, summarize, and extract key insights from legal documents.

According to Pfeifer users can upload up to 10 documents to be summarized. Documents are uploaded using a simple drag and drop action.

Security and Strategic Partners Lexis+ AI offers industry-leading data security and attention to privacy. Uploaded documents are always purged at the end of each session and users can easily manage or delete their prompt conversation history. The solution is continually improving with hundreds of thousands of rated answer samples by LexisNexis legal subject matter experts used for model tuning. LexisNexis employs over 2,000 technologists, data scientists, and subject matter experts to develop, test, and validate its solutions and deliver comprehensive, accurate information.

LexisNexis deploys ethical, powerful generative AI solutions with a flexible, multi-model approach that prioritizes using the best model for each individual legal use case. This approach includes 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. . LexisNexis  has outlined their approach to developing AI with human oversight and following  RELX Responsible AI Principles, which were developed by their parent company RLEX.

Cost The cost of the product was not disclosed but like other Lexis  upgrades the cost will be based on the size of the organization as well as market segment. Subscribers will not be required to upgrade to all the features at once, but can select individual modules.

Training and Education  

Lexis will offer special training on the creation of “prompts” in order to help lawyers readjudt their research queries to optimize the Lexis+ AI search results.Back in May of this year Lexis launched the Lexis+ AI Insider program, which is open to all legal professionals. The program is designed to support GAI education. More than 12,000 Insiders have signed up to be among the first to experience Lexis+ AI. To sign up for the Lexis+ AI Insider program, visit www.lexisnexis.com/ai-insider

“This is a moment unlike any we’ve seen in the legal industry, and we are delighted to deliver generative AI that will safely and securely accelerate our customers’ success,” said Sean Fitzpatrick, CEO of LexisNexis North America, UK, and Ireland. “Lexis+ AI gives legal professionals a significant competitive advantage by driving improved speed, productivity, and work quality gains for law firms and their clients.”

The Market

This reminds me of the previous legal tech competitions  (e.g. building litigation analytics and brief analysis tools) where all the leading players continuously enhanced  their offerings and leap frogged over each other  which successive waves of innovation. The legal market benefits from these competitive cycles of continuous improvement. In recent weeks vLex and Bloomberg Law announced GAI initiatives and launches. Thomson Reuters is expected to launch an integration of their Casetext CoCounsel technology in Westlaw in the near future.

For more information on Lexis+ AI and to sign up for a demo, visit www.lexisnexis.com/ai.

A video about Lexis+ Ai is available at this link.