Lexis+ with Protégé Cost and Price With AI Pricing, Vault Limits and Alternatives
What LexisNexis actually publishes about Protégé, what it refuses to publish, and how the numbers compare with the one incumbent AI tier that does show a rate.
In short
Lexis+ with Protégé is the generative and agentic AI assistant LexisNexis sells on top of its Lexis+ research platform, covering conversational research, drafting and redlining, summarization, and workflow automation, with Shepard's as the citator. Since May 2026 it also runs 12 Anthropic Claude legal plugins inside Protégé. LexisNexis publishes no price for it: its online store lists Lexis+ with Protégé as "Pricing on request" beside the base Lexis+ plans, which it does price, at 114 to 432 dollars per attorney per month for firms of 1 to 3 attorneys. Third parties report roughly 128 to 494 dollars per user per month for smaller firms and 500 to 1,000 dollars or more for full access, none of it confirmed by LexisNexis. The trial is 2 days for Protégé against 7 days for base Lexis+, so the AI tier gives you less time to evaluate than the product underneath it. If the job you need done is finding the on-point case, Cases does that for a published 49 dollars per month with no sales call. This is informational research, not legal advice, and you should always read the case before citing it.
Naming update, checked 13 August 2026. LexisNexis has retired the name Lexis+ AI. The product page now reads "Formerly Lexis+ AI" and states plainly that Lexis+ AI has been renamed Lexis+ with Protégé, and the old /products/lexis-plus-ai.page URL 301-redirects to the Protégé page. The older Lexis Advance product URL redirects to the same destination, which we cover on our Lexis Advance page. If you were sold Lexis+ AI, you have the same entitlement under the new name.
What LexisNexis puts in writing
What Protégé does, and what the vendor commits to
Most write-ups about Protégé restate the marketing copy. The more useful exercise is separating the capabilities LexisNexis names on its own page from the ones where it also publishes a hard number, because a published number is something you can hold a vendor to and a capability name is not.
| Capability | What it does | What is published |
|---|---|---|
| Protégé AI assistant | LexisNexis describes it as a personalized generative and agentic assistant covering conversational legal research, drafting and redlining, document summarization, and workflow automation. | Named on the product page |
| Grounded legal research | Answers are grounded in your organization's knowledge, LexisNexis licensed content, and web sources. The vendor claims grounding, not freedom from hallucination. | Named on the product page |
| Shepard's Citations | Validates citations and confirms the status and treatment of authorities. This is the citator, and it is the piece of the Lexis stack that has no cheap substitute. | Named on the product page |
| Vault | Private document workspaces the assistant can reason over. The earlier published limit was up to 50 Vaults of 1 to 500 documents each; the May 2026 Protégé Work release describes a reimagined Vault holding up to 100,000 documents. | Limit published: now up to 100,000 docs (May 2026) |
| Pre-built workflows | Packaged routines for everyday drafting, review, research, and litigation preparation, so common tasks do not start from an empty prompt box. | Named, count not published |
| AI agents | Multi-step work with visibility into progress, aimed at complex tasks that need planning rather than a single answer. | Named, scope not published |
Capabilities and limits read from the LexisNexis Lexis+ AI product page, with the Vault figure updated from the May 2026 Protégé Work release. Note the pattern: the only hard figures LexisNexis publishes are the Vault limits and the trial length.
Published, reported, and guessed
What you can actually verify about Protégé pricing
Here is the whole incumbent field sorted by whether a vendor page will confirm the figure. Sorting it this way surfaces something the individual product pages hide: of the major legal AI tiers a US firm is likely to shortlist, only a few publish a rate you can read without talking to anybody, and Protégé is not one of them.
| Product | Figure | Status | Where it comes from |
|---|---|---|---|
| Lexis+ with Protégé | Pricing on request | Quote only | The LexisNexis online store lists it beside the priced plans as "Pricing on request"; LexisNexis states pricing varies by organization size, capabilities required, and content scope |
| Lexis+ without Protégé, 1 to 3 attorney firms | 114 to 432 dollars per attorney per month (Essential 152 on 1 year, 114 on 3 years; Professional 432 or 324) | Published | LexisNexis online store price table, as captured 5 September 2026 |
| Lexis+ with Protégé, small and mid firms | 128 to 494 dollars per user per month | Reported | Third-party write-ups, not confirmed on any LexisNexis page |
| Lexis+ with Protégé, full access | 500 to 1,000 dollars per user per month | Reported | Aggregator estimates, treat as somebody else's negotiated deal |
| CoCounsel Legal | 784 dollars per attorney per month on a 1-year plan, 637 on 3 years, all states plus federal; online for up to 10 attorneys | Published | Thomson Reuters online plans and pricing, read 9 October 2026; over 10 attorneys routes to sales |
| Westlaw Advantage, single circuit | 256.75 dollars per user per month | Published | Thomson Reuters sales site, Westlaw Advantage plans and pricing |
| Westlaw Advantage, all states plus federal | 256.75 dollars per user per month for a single circuit, 399.75 for all states plus federal | Published | Thomson Reuters plans and pricing page, re-read 4 September 2026. Both are stated as starting prices, with 12 percent off a two year term and 18 percent off three years. Online purchase is capped at firms of up to 10 attorneys |
| Paxton AI | 499 dollars per user per month | Published | Paxton AI pricing page |
| Harvey | No figure shown | Quote only | No published rate anywhere on the vendor site |
| Cases | 49 dollars per month | Published | Our own pricing page, self-serve, no sales call |
There is a practical asymmetry buried in that table. CoCounsel Legal now has its own published small-firm price, 784 dollars per attorney per month on a 1-year plan for all states plus federal, and it contains full Westlaw Advantage, which has a published rate of its own, so even a quote above 10 attorneys has two visible reference points. A Protégé quote has a weaker anchor, but it has one. The LexisNexis store publishes the Lexis+ plans underneath Protégé for firms of 1 to 3 attorneys, 114 to 432 dollars per attorney per month depending on plan and term, and lists Protégé beside them as pricing on request. So the Protégé premium is the quote minus the published plan price for the same coverage and term. Ask for both numbers in the same email, or you are negotiating blind. Every published plan is on our LexisNexis solo practitioner pricing page. Our CoCounsel Legal breakdown works through those numbers, and LexisNexis legal research covers the platform Protégé sits on.
The one number everybody publishes
How long each vendor gives you to evaluate
Since most of this market refuses to publish pricing, trial length is the only figure that can be compared like for like across vendors. It is also more revealing than it looks. How long a vendor is willing to let you use the product unsupervised tells you something about how quickly they expect it to sell itself.
| Product | Published trial | What that tells you |
|---|---|---|
| Lexis+ with Protégé | 2 days | The AI tier gets a shorter window than the base product it sits on. |
| Lexis+ (base platform) | 7 days | Research, Practical Guidance, and data-driven insights, no credit card required. |
| CoCounsel Essentials | On request | No fixed length published; a trial is requested rather than started. |
| Paxton AI | 7 days | Published alongside a published per-seat rate. |
| midpage | Two weeks, no card | A free trial with limited AI usage and no card. The pricing page, re-read 25 September 2026, states two weeks. |
| Cases | No trial, 49 dollars per month | Month to month at a published price, so evaluating costs one month rather than a signature. |
The Protégé number is the one worth pausing on. LexisNexis offers 7 days on the base Lexis+ platform and 2 days on the AI tier that sits on top of it. Whatever the reason, the practical effect on a buyer is real: two days is a demo, not an evaluation. You cannot put a genuinely contested research question through a tool, wait for the answer to matter, and form a view inside forty-eight hours. If you go down this route, book the trial for a week when you already have a live matter to test it against, and know your questions in advance.
The comparison buyers actually run
Protégé against CoCounsel, honestly
These two are the real shortlist for most US firms evaluating incumbent legal AI, and on features they have converged almost completely. Both do conversational research over licensed primary law. Both draft and redline. Both analyze document sets, run multi-step agentic tasks, and integrate with Word. Feature-comparing them is largely a waste of an afternoon.
What actually differs is the library and the citator underneath. Protégé reasons over LexisNexis content and validates with Shepard's. CoCounsel reasons over Westlaw primary law plus Practical Law guidance and validates with KeyCite. If your firm has twenty years of muscle memory in Shepard's signals, moving to KeyCite is a real retraining cost that no feature grid will show you, and the reverse is equally true. That, far more than the AI layer, is what should decide it. We set the two side by side on library, citator, pricing and trial length in Lexis Protégé vs CoCounsel: which legal AI to buy.
The published floor under any Protégé quote. LexisNexis prints no Protégé price, but its online store does print the Lexis+ plans underneath it for firms of 1 to 3 attorneys: 152 dollars a month for Essential on a 1-year term, down to 114 on 3 years, and 432 for Professional, down to 324. Since Protégé is sold as including all of Lexis+, a quote for the AI tier should sit above those figures, and a reported number below them describes someone else's negotiated deal. Our Lexis Protégé review weighs what the independent testing says against that cost, and the plan-by-plan table is on LexisNexis solo practitioner pricing. If the other quote on your desk is Harvey, which since 2025 can answer from the same LexisNexis case law, see Lexis Protégé vs Harvey pricing.
Worth knowing about both citators before you treat either as settled: Paul Hellyer's study in the Law Library Journal, volume 110, reviewed 357 citing relationships and found that Shepard's and KeyCite each missed or mislabeled about one third of negative citing relationships. Neither is a rubber stamp. That finding is old enough to predate the current AI tiers and it has not been superseded, which is why the professional habit of reading the case yourself has survived every product generation so far. Our KeyCite and Shepard's comparison goes through the study in detail.
One more difference buyers now ask about: Claude. Thomson Reuters ships a CoCounsel Legal connector inside the Claude app, while LexisNexis brought 12 Anthropic Claude legal plugins into Protégé instead and lists no connector in Claude. If your firm drafts in Claude, that decides where the work happens. Our LexisNexis Claude connector and MCP breakdown prices every route.
Match the spend to the practice
Who should buy Protégé, and who is overbuying
Firms already standardized on Lexis and Shepard's
This is the clearest yes. You license the content, your associates know the signals, and Protégé is an interface upgrade rather than a platform migration. Negotiate it as an add-on to a renewal you were signing anyway, which is a much stronger position than buying it cold.
Teams whose week is drafting and redlining
The drafting, summarization, and Vault features are doing work a search tool genuinely cannot do. If contract review and first drafts are a real share of billable time, an assistant sitting on licensed content is defensible spend.
Litigation teams with large document productions
Check the Vault ceiling before you sign. The older limit of fifty Vaults at 1 to 500 documents each capped you at 25,000 documents; the May 2026 release describes up to 100,000. Confirm in writing which one your contract carries, and raise it early.
Solos and small firms doing mostly case finding
This is the overbuy. If your actual daily task is locating the on-point authority and citing it, the reported entry range for Protégé is several times what focused case law search costs, and nearly all of the difference is work product tooling you will not open.
Anyone who has not priced the bar association option
Before paying for anything, check your state bar. A large number of US bars include a Fastcase or vLex library in dues you already pay, and it comes with case law search and the Authority Check citator. For a solo practice that is sometimes the entire answer, and no vendor is going to volunteer it.
Unbundle the two jobs
If what you need is the research half
Legal research is two jobs the incumbents sell as one: finding the on-point authority, and confirming it is still good law. The quoted tiers bundle both together with a drafting suite, a document workspace, and an agentic workflow engine, and price the whole thing as a platform. If you only need one of those jobs done, you are still paying for all of them.
For the finding half, Cases takes a legal question in plain English and returns on-point US federal and state precedents as headnote cards, each with the holding surfaced and a real citation. Pricing is published at 49 dollars per month, month to month, with no quote and no sales call. For the validating half, run the citation through whatever citator you have access to, which for a lot of US lawyers is the Authority Check included with a bar-provided library. Our citator comparison lays out every option and what each one costs.
We are not claiming this replaces Lexis+ with Protégé. It does not draft your motions, it does not redline a contract, it has no Vault, and we are not a citator. What it does is the search half, at a published price you can read right now. If you are verifying a citation somebody else produced, the case citation checker walks through confirming a case is real before you file it, and our LexisNexis alternative comparison concedes where LexisNexis genuinely wins.
The honest scorecard
Lexis+ with Protégé pros and cons
Reviews of this product tend to be either vendor marketing or a feature list restated. Here is the version that tries to be useful to somebody deciding, with the weaknesses stated as plainly as the strengths.
| Dimension | Pro | Con |
|---|---|---|
| Content library | You are reasoning over licensed LexisNexis primary law, not the open web. For US practice that depth is real and it is the main thing you are paying for. | You cannot buy the AI layer without the library underneath, so the quote is always for both. |
| Citator | Shepard's is included and is one of only two citators most US courts and firms treat as authoritative. | Shepard's is not infallible. Paul Hellyer's study in Law Library Journal volume 110 found Shepard's and KeyCite each missed or mislabeled roughly a third of negative citing relationships. |
| Model transparency | LexisNexis names its providers, listing OpenAI, Google and Anthropic. Most of this market names none. | Naming providers is not the same as telling you which model answers which query, and that detail is not published. |
| Published limits | Vault limits are published: formerly 50 Vaults of 1 to 500 documents (25,000), now described as up to 100,000 documents. | Even the larger ceiling matters for a team in heavy discovery, and it is easy to miss until you hit it. |
| Pricing transparency | None to speak of, and we will not pretend otherwise. | No rate is published anywhere. Every figure circulating online is somebody else's negotiated deal, which leaves you negotiating with no anchor. |
| Evaluation window | A trial exists, which is more than Harvey or CoCounsel Legal publish. | Two days for the AI tier against seven for base Lexis+. Two days is a demo, not an evaluation of a live matter. |
| Fit for solos | If you already license Lexis, the upgrade path is genuinely simple. | If you do not, the reported entry range is several times what focused case law search costs, and most of the gap is drafting tooling a solo will rarely open. |
The short verdict: Protégé is a strong product sold badly. The capability is competitive with anything else at its tier, the citator is a genuine moat, and the model transparency is above average for this market. What lets it down for a buyer is everything around the purchase, namely no published rate, no anchor to negotiate against, and a two day window to form a view. If you are already a Lexis firm, negotiate it into a renewal you were signing anyway. If you are not, price the alternatives first, because the strongest argument for Protégé is content you may not currently license. Newer entrants price the same way: our Legora pricing breakdown covers a platform that goes further still and publishes no pricing page at all.
Questions buyers ask
Lexis+ AI Protégé, answered
What is Lexis+ AI Protégé?
Protégé is the generative and agentic AI assistant LexisNexis layers on top of the Lexis+ research platform. LexisNexis describes it as a personalized assistant that handles conversational legal research, drafting and redlining, document summarization, and workflow automation, grounded in your organization's own knowledge alongside licensed LexisNexis content and web sources. The important structural point is that Protégé is an assistant over a content library, not a separate library. What you are really buying is Lexis content with an AI interface on it.
How much does Lexis+ AI Protégé cost?
LexisNexis publishes no rate. Its own page states that pricing varies based on the size of your organization, the specific capabilities required, and the scope of content access, and directs you to contact sales. Third-party sources report roughly 128 to 494 dollars per user per month for smaller firms and 500 to 1,000 dollars or more for full access, but no LexisNexis page confirms any of those figures. Treat every published Protégé number you find online as somebody else's negotiated deal rather than a rate card.
Is Lexis+ AI free?
No. There is no free tier, and the trial is unusually short: LexisNexis advertises a 2-day free trial for Lexis+ with Protégé, against 7 days for the base Lexis+ platform. Two days is enough to watch a demo workflow, not enough to run it against a live matter. If cost is the real constraint, check your state bar association first, because a large number of US bars include a Fastcase or vLex library in dues you already pay, and that comes with case law search and the Authority Check citator.
Is Protégé included in Lexis+?
Not automatically. Lexis+ is the base research platform, covering federal and state case law, statutes, Shepard's, and Practical Guidance. Protégé is the generative tier sold on top of it, which is why LexisNexis brands the combined product Lexis+ with Protégé rather than just Lexis+. If you already subscribe to Lexis+ and want the AI assistant, that is an upgrade conversation with a separate price, and the separate 2-day trial is a decent signal that it is sold as its own line item.
Which is better, Lexis+ AI Protégé or CoCounsel?
They are close enough in capability that the honest deciding factor is which content library you already trust. Protégé reasons over LexisNexis content and uses Shepard's as its citator; CoCounsel Legal reasons over Westlaw primary law and Practical Law, and uses KeyCite. Both do drafting, document analysis, and agentic multi-step research. The practical difference is price transparency. Thomson Reuters publishes CoCounsel Legal online for law firms of up to 10 attorneys, at 784 dollars per attorney per month on a 1-year plan for all states plus federal, while LexisNexis lists Protégé only as pricing on request.
What is Lexis Protégé Vault?
Vault is the private workspace where you upload your own documents so the assistant can reason over them alongside published law. LexisNexis publishes the limit, which is rare enough to be worth quoting. The earlier limit was up to 50 Vaults of 1 to 500 documents each, a ceiling of 25,000, and the May 2026 Protégé Work release describes a reimagined Vault holding up to 100,000 documents. Ask which limit applies to your contract before a large document production goes in.
Does Lexis+ AI hallucinate?
LexisNexis claims its answers are grounded in authoritative sources and that citations can be verified for validity, status, and treatment. It does not claim to be hallucination free, and that distinction matters. Grounding reduces fabrication, it does not eliminate it, and US courts have sanctioned lawyers for filing briefs containing invented citations produced by AI tools. Whatever platform you use, read the case before you cite it. That is the professional obligation regardless of which vendor produced the citation.
Is Lexis+ AI Protégé worth it?
It is worth it if your week genuinely includes drafting, redlining, and document review, and if you are already committed to Lexis content and Shepard's. In that situation you are paying for an interface to a library you already license, which is a defensible spend. It is poor value if what you actually do all day is find the on-point case and cite it. In that case you are buying a large work product suite, a document workspace, and an agentic workflow engine to reach a search box, and the quote will reflect all of it.
Keep researching
Find the case without the quote
Ask your question in plain English and get on-point US precedents with a real citation. Published pricing from 49 dollars per month, no sales call. Informational research, not legal advice, always verify the citation.