Lexis+ AI

Lexis+ with Protégé is an artificial intelligence platform developed by LexisNexis for legal research, document drafting, contract review, legal analysis, and professional productivity. Formerly known as Lexis+ AI, the platform combines the LexisNexis Protégé AI assistant with authoritative legal information, professional guidance, and organisation-specific documents. It is designed to help lawyers, law firms, corporate legal departments, government bodies, and academic institutions complete complex legal tasks more efficiently while maintaining a focus on reliable sources, citation verification, confidentiality, and human oversight.

Traditional legal work often involves searching through large collections of case law, statutes, regulations, legal commentary, contracts, and other documents. Reviewing this information can require considerable time and specialised expertise. Lexis+ with Protégé brings AI-assisted workflows into this process, allowing legal professionals to ask questions in natural language, identify relevant authorities, summarise lengthy documents, analyse arguments, and prepare written work. Rather than functioning only as a general-purpose chatbot, it is built around legal tasks and access to the LexisNexis information ecosystem.

One of the platform’s principal capabilities is AI-powered legal research. Users can investigate legal questions, explore relevant authorities, and develop research results supported by available LexisNexis legal sources. The platform combines primary law, including case law, statutes, and regulations, with secondary sources and Practical Guidance resources. Depending on the available subscription and jurisdiction, users can also incorporate web content to provide broader context. Guided research workflows help break complex questions into manageable stages and organise the findings into a more structured response.

Citation verification is another important part of the platform. Legal arguments depend on the accuracy and continuing validity of cited authorities, so researchers need to confirm that cases and other references support the propositions for which they are used. Lexis+ with Protégé integrates LexisNexis citation services, including Shepard’s or the applicable Case Signals service depending on the market, to help users examine citation status and treatment. These tools support verification, but they do not remove the need for lawyers to read the underlying authorities and exercise professional judgement.

The platform also provides AI-assisted legal drafting. Users can generate and refine documents such as contracts, transactional agreements, litigation motions, legal briefs, complaints, and client communications. Drafting workflows can draw on authoritative LexisNexis content or authorised documents supplied by the user’s organisation. This is particularly useful when a legal team needs to prepare a first draft, improve the structure of an existing document, or adapt material to specific requirements. Generated documents should still be reviewed carefully for legal accuracy, jurisdictional relevance, completeness, and consistency with the client’s instructions.

Contract review and document analysis form another significant part of the platform. Legal professionals can use AI to examine documents, identify relevant provisions, summarise important terms, and support due diligence or risk-review workflows. These capabilities can help teams process large volumes of material during contract negotiations, transactions, litigation preparation, and internal compliance reviews. The quality of the analysis depends on the source documents, the task instructions, and the features available under the selected subscription.

Protégé, the AI assistant embedded in the platform, helps users interact with these tools through conversational prompts. It can assist with drafting, research, summarisation, document analysis, and other supported workflows. Users can choose between Legal AI, which is optimised for legal tasks and grounded in LexisNexis sources, and General AI, which supports broader reasoning, drafting, and exploration within the platform’s secure environment. The ability to use different AI configurations gives professionals flexibility while keeping legal work within an environment designed for professional use.

Lexis+ with Protégé also offers workflow tools that help legal teams standardise recurring tasks. Pre-built workflows support common activities in litigation, transactional work, and general legal practice. Depending on the available configuration, users can create reusable workflows reflecting their firm’s drafting standards, review procedures, and internal playbooks. This can improve consistency across teams and reduce the need to repeat the same instructions for every assignment. Organisations should nevertheless test workflows and establish appropriate review procedures before relying on them for important legal work.

The platform’s document capabilities extend to large collections of files. Protégé Vault allows users to upload and organise documents in a dedicated repository for AI-powered analysis. Users can ask questions about stored materials, generate timelines, investigate counterarguments, locate relevant information, and prepare drafts based on the documents. The international product documentation describes support for multiple Vaults and large document collections, although limits and retention arrangements should be confirmed for the applicable market and subscription.

Integration with document management systems is another important feature. Lexis+ with Protégé supports connections with platforms such as iManage, Microsoft SharePoint, and NetDocuments, alongside other supported document management systems. These connections allow legal professionals to work with authorised organisational knowledge without manually moving every document into a separate tool. Microsoft 365 and related productivity workflows may also be available depending on the product configuration. Organisations should confirm integration availability and permissions before implementation.

Security and privacy are central considerations because legal work can involve privileged communications, confidential client information, commercial agreements, and sensitive personal data. LexisNexis describes the platform as using privacy-focused AI architecture, secure cloud infrastructure, encryption, and organisational controls. Its published information states that customer data is not used to train public AI models or improve performance for other customers. The company also follows the RELX Responsible AI Principles and emphasises human oversight. Prospective customers should review the current contractual terms, data-processing arrangements, retention settings, and regional requirements before uploading sensitive documents.

Lexis+ with Protégé is intended for a range of professional environments. Law firms can use it to support research, drafting, litigation preparation, and document review. Corporate legal departments can apply it to contract analysis, internal legal enquiries, and recurring workflows. Government legal teams and academic institutions may also benefit from its research and document capabilities where the relevant product and content are available. Its value is particularly relevant to organisations that already rely on LexisNexis legal research resources.

Despite its capabilities, the platform has limitations. Access to legal content, practice guidance, integrations, and advanced workflows depends on the market, subscription, and organisational configuration. AI-generated responses can contain errors, overlook relevant authorities, or misunderstand complex instructions. Legal professionals must independently verify citations, review supporting sources, protect confidential information, and remain accountable for their work. The platform is an aid to professional judgement rather than a replacement for qualified legal advice.

Overall, Lexis+ with Protégé is a specialised legal AI solution that combines research, drafting, document analysis, citation checking, and reusable workflows in one professional environment. Its integration with authoritative legal content and organisational documents distinguishes it from general-purpose AI assistants. For legal teams seeking to improve research efficiency and standardise document workflows, it offers a broad set of tools, provided that users verify the results and confirm the product’s suitability for their jurisdiction and practice.