LexisNexis vs Luminance (2026)

Named connections reach iManage, SharePoint, NetDocuments and other DMS platforms, and Lexis Create+ drafts inside Microsoft 365. Web and news sources feed in, and skill outputs arrive as Word, Excel, PowerPoint and PDF files. The connections stop at document systems and Microsoft 365, the DMS link retrieves documents and returns output as files, and no custom tool or action framework reaching into third party systems is described.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-plus-protege.page and the 7 May 2026 releaseread 2026-09-06

Luminance works inside Microsoft Word and Outlook, sends agreements for signature through DocuSign, brings LexisNexis Protégé research into contract review for US customers, and connects to enterprise applications and AI assistants over MCP. Only those integrations are named, with no connector catalog and no custom tool framework.

SourceLuminance, luminance.com/platform/product/negotiation, luminance.com/platform/product/workflows and luminance.com/blogs/agentic-contract-workflows-and-negotiationread 2026-10-23

Protégé Work takes a selected skill or a goal in natural language, routes it to the right skill or workflow, presents a structured plan and executes the steps to produce work product ready for review. Agentic Drafting agents build contracts, motions and briefs from LexisNexis content, firm templates and matter materials, and a no code builder lets teams create and share their own workflows.

SourceLexisNexis, 7 May 2026 release and lexisnexis.com/en-us/products/lexis-plus-protege.page; lexisnexis.com/community/pressroom/b/news/posts/lexisnexis-launches-next-evolution-of-lexis-with-protege-the-legal-ai-platform-built-on-the-authority-legal-work-demandsread 2026-09-06

Specialist agents operate across every stage of the contract lifecycle. Routine negotiations run within the standards, approval parameters and workflows the customer defines, and Workflows route tasks, approvals and next steps on the rules and conditions the customer sets, from intake and review through approval and signature, with agents that help build and run them.

SourceLuminance, luminance.com/platform/product/workflows, luminance.com/platform/product/negotiation and luminance.com press release 27 January 2026read 2026-10-23

Work reaches Protégé when a user asks in the workspace or a Workroom, in Lexis Create+ in Microsoft 365, or through the API, and Protégé suggests tasks from documents added to a Vault. Content alerts on the REST APIs notify on new material without starting agent work, and no schedule or event trigger for skills or workflows is described.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-plus-protege.page and lexisnexis.com/en-us/products/lexis-api.pageread 2026-09-06

As deals progress, agents read the state of each contract and trigger the next action, notifying the right people, and workflows move work forward on their own when predefined conditions are met. User initiated work runs from Microsoft Word and the platform. There are no stated schedules or webhooks.

SourceLuminance, luminance.com/platform/product/workflows and luminance.com press release 27 January 2026read 2026-10-23

Responses are grounded in LexisNexis primary law, exclusive secondary sources and Practical Guidance, with Shepard's citation validation. The customer's own documents come in through DMS connections to iManage, SharePoint and NetDocuments, and Vaults hold up to 100,000 matter documents, kept until the customer deletes them.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-plus-protege.page and the 7 May 2026 releaseread 2026-09-06

Answers are grounded in source material with citations. The Document Search Engine links contracts, amendments and related documents through precomputed legal knowledge and context graphs, Lumi gives source backed answers across the repository, and playbooks, precedent and positions agreed with the same counterparty ground negotiation. The repository is a maintained retrieval structure over the customer's contracts.

SourceLuminance, luminance.com/platform/technology, luminance.com/platform/product/repository and luminance.com/platform/product/negotiationread 2026-10-23

Protégé personalizes for each user, adapting to the user's preferences over time, and what one user shares never informs performance for another. Users can review and manage personalization settings at any time, adjusting the level or opting out entirely. Vaults and Workrooms hold matter documents, not memory.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-plus-protege.pageread 2026-09-06

Each agent has short term memory of prior reasoning steps and long term memory embedded in the platform, retaining negotiation history, related contracts and precedent across the enterprise contract portfolio in perpetuity and drawing on it in real time. A March 2026 upgrade surfaces that memory behind every decision. The memory covers the enterprise's contracts and lasts in perpetuity, but there is no stated user facing surface to edit or delete it.

SourceLuminance, luminance.com press releases 27 January and 11 March 2026read 2026-10-23

Protégé Work presents its plan before executing, so the user sees and controls the steps, and output arrives as work product ready for review, not as a final action. Workrooms enforce dual approvals on shared work, and Shepard's Verify flags citations in AI drafted content that cannot be verified, for a person to review.

SourceLexisNexis, 7 May 2026 release and lexisnexis.com/en-us/products/lexis-plus-protege.page; lexisnexis.com/community/pressroom/b/news/posts/lexisnexis-launches-next-evolution-of-lexis-with-protege-the-legal-ai-platform-built-on-the-authority-legal-work-demandsread 2026-09-06

Routine contracts are negotiated within the standards, approval parameters and workflows the customer defines, and exceptions or decisions that need human judgment are routed to the right stakeholders, so Legal sets the guardrails business teams work inside. Workflows set who must act and which approvals a contract needs before it moves, and Differential Validation flags an answer for human review when its checks do not agree.

SourceLuminance, luminance.com/platform/product/negotiation, luminance.com/platform/product/workflows and luminance.com/platform/technology/differential-validationread 2026-10-23

The trust center publishes a SOC 2 Type 2 report covering Lexis+ with Protégé, alongside ISO/IEC 27001, SOC 3, SOC 1 Type 2 and HIPAA attestations. Access controls include role based permissions, least privilege access and dual approvals in Workrooms, plus BYOK encryption against the customer's own KMS, and the Protégé API adds OAuth 2.0 and role based access.

SourceLexisNexis, trust.lexisnexis.com and the 7 May 2026 releaseread 2026-09-06

Luminance is certified to ISO 27001 and has completed a SOC 2 Type 2 examination, with regular third party penetration testing. Customers configure role based permissions, multi factor authentication, single sign on and session controls, and activity in the application is logged for review. Luminance staff cannot view documents unless access is granted through the platform.

SourceLuminance, luminance.com/securityread 2026-10-23

Workrooms keep audit trails and activity history of AI work, documents and discussions, and Vault outputs link back to the exact passage, spreadsheet row, image or timestamp they came from. Protégé Work shows its plan and steps, product audit logging and access log management are in place, and the Protégé API logs its calls for audit.

SourceLexisNexis, 7 May 2026 release and trust.lexisnexis.com; lexisnexis.com/community/pressroom/b/news/posts/lexisnexis-launches-next-evolution-of-lexis-with-protege-the-legal-ai-platform-built-on-the-authority-legal-work-demandsread 2026-09-06

Every autonomous decision surfaces the context, history and legal logic that drove it, and Differential Validation makes clear what has been verified, what needs human review and why. Answers carry citations to source material, workflows keep an audit trail of actions and decisions, and all access to customer data is logged and audited.

SourceLuminance, luminance.com/platform/technology/differential-validation, luminance.com/platform/product/workflows, luminance.com/security and luminance.com press release 11 March 2026read 2026-10-23

Lexis+ with Protégé is hosted on AWS in eight countries, Australia, Canada, France, Germany, Ireland, South Africa, the UK and the USA, and on Microsoft in six, Australia, Canada, France, Germany, Sweden and the USA, with processing in the region of the market edition the customer buys, and BYOK against the customer's own KMS is supported. AI functionality is processed by Anthropic and OpenAI in the USA, with OpenAI also in the EEA and Switzerland, and by Google globally, whatever the hosting region. There is no customer cloud or on premises option.

SourceLexisNexis, lexisnexis.com/global/privacy/en/subprocessor.page and the 7 May 2026 releaseread 2026-09-06

Customer data is hosted in AWS in the region set in the customer's order form, with EU or UK hosting named, and each customer environment is logically isolated with dedicated data stores. An on premises appliance is a second delivery form, with its own support terms.

SourceLuminance, luminance.com/security, luminance.com/legal/subprocessors and luminance.com/legal/support-datasheet-on-premiseread 2026-10-23

A browsable library of agent skills comes from LexisNexis and Anthropic, with prebuilt skills for contract comparison, complaint analysis, research synthesis, checklist generation, due diligence, compliance review and playbook based review, plus prebuilt drafting workflows. Each skill is complete on its own, and a customer selects among them.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-plus-protege.page and the 7 May 2026 releaseread 2026-09-06

The platform has three product areas, Negotiation, Repository and Workflows, with the Lumi assistant across them and named agents such as the Template Agent, which turns an uploaded contract into a template with its intake form and workflow, and the Playbook Agent, which extracts playbook positions with citations. These are parts of one platform rather than a catalog of complete agents a customer selects among, and the templates and playbooks are built from the customer's own contracts.

SourceLuminance, luminance.com/platform/product and luminance.com/blogs/agentic-contract-workflows-and-negotiationread 2026-10-23

Protégé General AI gives access to large language models from OpenAI, Google and Anthropic, each with different reasoning strengths, so the user picks the model for the task. Protégé Legal AI blends multiple LLMs under routing LexisNexis controls, and the AI providers for Lexis+ with Protégé are Anthropic, OpenAI and Google, as well as Microsoft and Mistral.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-plus-protege.page and lexisnexis.com/global/privacy/en/subprocessor.pageread 2026-09-06

Luminance routes each task to the model it judges best for accuracy, speed, reliability and cost, including its own Luna Crescent model and models from outside providers named on its subprocessor list, such as OpenAI, Microsoft Azure and Google Cloud. Customers do not choose the model, which Luminance describes as being model opinionated by design.

SourceLuminance, luminance.com/platform/technology, luminance.com/legal/subprocessors and luminance.com/blogs/how-luminance-selects-ai-models-for-contract-intelligenceread 2026-10-23

The Protégé API exposes the assistant's Ask and Summarize functions as secure endpoints for embedding in firm intranets, client portals and practice tools, secured with OAuth 2.0 and role based access, and throttled and logged for audit, alongside REST content APIs. A developer portal with documentation, SDKs and a sandbox is opened on request. The no code workflow builder is a tool inside the product, not an interface for outside callers.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-api.pageread 2026-09-06

Luminance connects its contract intelligence to enterprise applications, AI assistants and outside agents through its integrations and the Model Context Protocol, so an assistant outside Luminance can reach its contract search, analysis, summaries and review. There is no published endpoint, auth scheme or tool list, and no public API or SDK reference.

SourceLuminance, luminance.com/platform/product/workflowsread 2026-10-23

Shepard's Verify checks each output's citations, which gates outputs but does not test changes, and the AI System Development and Evaluation Policy and the 2,000 experts who validate the models are LexisNexis's own release practice. Customers get no test harness, test cases or release gate for the skills and workflows they build.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-plus-protege.page and trust.lexisnexis.comread 2026-09-06

Before a playbook goes live, automated flags mark positions that are ambiguous or incomplete, and self validation tools let the team investigate those areas of uncertainty. That check reads on the playbook the customer configures rather than on what the agents later do, and there is no test case set, scoring or evaluation dashboard. Differential Validation checks answers inside the product as Luminance's own accuracy layer, not a harness customers run.

SourceLuminance, luminance.com/blogs/agentic-contract-workflows-and-negotiation and luminance.com/platform/technology/differential-validationread 2026-10-23

Protégé works in the Lexis+ web application, in Microsoft 365 through Lexis Create+ and through the API, and pulls web and news sources as content. No browser, desktop or computer control is described.

SourceLexisNexis, lexisnexis.com/en-us/products/lexis-plus-protege.pageread 2026-09-06

Work happens in Luminance's own platform and inside Microsoft Word and Outlook, and connections to other systems run through named integrations and MCP. There is no stated browser, desktop or computer control.

SourceLuminance, luminance.com/platform/product/negotiation and luminance.com/platform/product/workflowsread 2026-10-23