Lexis+ AI is a generative artificial intelligence platform launched by LexisNexis to assist legal professionals with research, drafting, and document summarization. It integrates a large language model with LexisNexis's proprietary database of case law, statutes, and secondary materials to provide answers with verifiable citations. The platform is designed to minimize hallucinations by grounding responses in an authoritative legal dataset.
Brand Authority Index (BAI): 92/100
Archetype: Challenger
Category: Legal Technology (LegalTech)
https://optimly.ai/brand/lexis-ai-lexisnexis
Last analyzed: April 11, 2026
Founded: 2023 (Launch of AI product)
Headquarters: New York, NY (LexisNexis HQ)