A review of LexisNexis+ AI — the generative AI upgrade for existing Lexis subscribers. We test natural language research accuracy and whether it justifies the additional cost.
What Is LexisNexis+ AI?
LexisNexis+ AI integrates generative AI into the existing LexisNexis research platform. Attorneys ask natural-language questions and receive case-cited answers from the full Lexis database, alongside traditional search results.
Who Is It For?
Exclusively useful for existing LexisNexis subscribers. For attorneys not already on Lexis, Casetext CoCounsel (Westlaw) or a standalone legal AI is a better option.
Research Accuracy
Our testing showed accurate, well-cited research answers across civil procedure, contract, and tort law queries. Case citations were verifiable in the Lexis database. Accuracy was comparable to Casetext CoCounsel in most query types.
Natural Language Interface
A significant improvement over traditional Boolean search for less experienced researchers. Seasoned Boolean users may find less marginal improvement.
Pricing
Add-on to existing LexisNexis subscriptions. Contact LexisNexis for current add-on pricing by subscription tier.
Verdict
For attorneys already on LexisNexis, the AI upgrade is worth serious evaluation. For those choosing between platforms, compare Casetext CoCounsel on Westlaw alongside LexisNexis+ AI before committing. Rating: ⭐ 4.5/5