Luminance shows no price anywhere on its site, and the best known pricing article about it refuses to print a number. This page gives you the one figure that is actually grounded in Luminance's own reported revenue, explains why your quote turns on document volume rather than headcount, and shows what you can buy today at a published price.
Every Luminance figure below is labeled as published by Luminance or reported by a named third party with a date. Nothing here is a quote you can hold anyone to.
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Luminance does not publish pricing, and unlike most quote-only vendors it has almost no reported deal data either. The one number with a real foundation is arithmetic on Luminance's own reported figures: roughly $42,900 per customer per year against the $30M ARR and 700 customers reported for late 2024, and roughly $60,000 against the $60M ARR reported for the end of 2025 and the 1,000 customers Luminance now claims. Independent guides put a mid-size first-year rollout somewhere in the five to six figure range, with implementation adding perhaps another fifth to half of the license fee. The variable that decides where you land is not how many lawyers you have. It is how many documents you keep in the system.
Start with what the vendor puts in writing, because that is the only part nobody can misreport. We checked luminance.com on September 17, 2026. There is no pricing page, no plan names, no seat price and no signup path, and the URL luminance.com/pricing answers 404. The table below is the set of commercial facts Luminance does disclose publicly.
| What a buyer wants to know | What Luminance publishes |
|---|---|
| Price per seat or per month | Nothing. No figure appears anywhere on the site. |
| Plan or tier names | None. Products are sold as modules, not as published tiers. |
| Self-serve signup or trial | None. Every path on the site leads to a demo request. |
| Products you are buying | Draft, Negotiate, Analyze, Comply, Investigate and Collaborate. |
| Security certifications | ISO 27001 and SOC 2, stated on the homepage. |
| Scale | More than 1,000 customers, including AB InBev, KPMG, Clifford Chance, Slaughter and May, Hitachi, SiriusXM, Tesco, Ralph Lauren, AMD and LG. |
| Company | Founded in 2015 by mathematicians. Raised $75M in a Series C led by Point72 Private Investments in February 2025, about $165M across seven rounds in total. |
| Where you can transact | AWS Marketplace, via a private offer, since October 2025. A private offer is still a negotiated price, not a listed one. |
Source: luminance.com, checked September 17, 2026, and the Luminance press release announcing the Series C, February 2025.
Luminance is unusual among quote-only legal AI vendors: there is barely anything to report. It does not appear in the marketplace purchasing datasets that leak Harvey and CoCounsel numbers, and the buying guides that normally supply an estimate mostly decline to. Read the confidence column before you carry any of these into a budget meeting.
| Reported figure | What it covers | Source and date | Confidence |
|---|---|---|---|
| $42,857 per year | Average annual contract value, derived from $30M ARR across 700 customers reported for late 2024 | Metronome pricing index, March 27, 2026 | Medium to high. Arithmetic on two reported company figures, not a quote. |
| About $60,000 per year | The same arithmetic brought forward: $60M ARR reported for the end of 2025, against the 1,000 customers Luminance now claims | Derived here from Sacra revenue reporting and luminance.com, September 17, 2026 | Medium. Sound arithmetic, but the two inputs are dated differently. |
| No figure at all | Bind Legal's Luminance pricing page declines to publish a number, saying any article that gives a specific figure is estimating | Bind Legal, March 26, 2026, checked September 17, 2026 | High. The most honest position on the page one results. |
| Low to mid six figures, first year | A mid-size rollout across a legal department, license plus standing it up | Vaquill, July 1, 2026 | Low. An estimate, and well above the implied average above. |
| Five to six figures per year | Mid-size deployment, scaled by user count, document volume and modules | Layer3Labs guide, updated July 7, 2026 | Low. A range wide enough to contain almost any outcome. |
| 20 to 50 percent of year one license | Implementation and rollout, charged on top of the subscription | Bind Legal, March 2026 | Low to medium. Normal for enterprise software, unverified for Luminance. |
| 36-month contracts typical | Contract length, not price, but it multiplies whatever you agree to | Metronome pricing index, March 2026 | Medium. Consistent with enterprise sales motion. |
| Document-volume metering | Monthly recurring fees based on document count, scaling with total documents stored in the system | Metronome pricing index, March 2026 | Medium to high. The single most useful thing known about the model. |
None of these figures comes from Luminance. Nothing here is an offer, and your quote will differ by document volume, module selection, contract length and how hard you negotiate.
This is where Luminance differs from the rest of the legal AI market, and it is the part the ranking pages skip. Harvey, Legora and CoCounsel are sold by the seat, so the question that decides whether you can afford them is how many lawyers you have. Luminance layers document-volume metering on top of the subscription: recurring fees track the total volume of documents held and processed in the system. A four-lawyer team with a twenty-year contract archive can therefore be quoted more than a fifteen-lawyer team that only loads live matters.
An average across a customer base that contains AB InBev, KPMG and Clifford Chance alongside small legal teams is not a quote, and we are not presenting it as one. What it does establish is the order of magnitude, which is the thing a buyer actually needs before the first call.
| Scenario | Per year | Per month | Over a 36-month contract |
|---|---|---|---|
| Implied average, 2024 inputs | About $42,900 | About $3,575 | About $128,600 |
| Implied average, 2025 inputs | About $60,000 | About $5,000 | About $180,000 |
| Add implementation at 20 percent of year one | Plus $8,600 to $12,000 once | Spread, roughly $240 to $333 | Plus $8,600 to $12,000 |
| Add implementation at 50 percent of year one | Plus $21,450 to $30,000 once | Spread, roughly $596 to $833 | Plus $21,450 to $30,000 |
| LegalSoul Professional, published | $3,588, or $1,788 paid yearly | $299, 500 document reviews | $10,764, cancellable monthly |
The gap is not an argument that Luminance is overpriced. It is an argument about fit. If you are running diligence across thousands of agreements and tracking obligations on a live repository, the platform is doing work no monthly tool does. If what you need is contracts, leases, briefs and exhibits read carefully for risk, you are looking at two different categories of product. Our AI contract review software page shows exactly what comes back from a single document.
Worth being fair about: the price buys a lot of product. Luminance has been building contract models since 2015, which is most of a decade longer than the generative legal AI cohort, and the platform is organized into six products you can buy separately or together.
Generates first drafts from your own precedent and playbook rather than from a generic template library.
Marks up an incoming contract against your standard and suggests fallback language drawn from positions your side has taken before. An autopilot can run routine NDAs on its own.
Reviews clauses against a standard and flags them red, amber or green, which is the traffic-light review Luminance is best known for.
Tracks obligations and regulatory exposure across the contracts already signed, rather than the one on your desk.
Diligence at repository scale: query thousands of agreements at once instead of opening them one by one.
Shared workspace so legal, procurement and the business work the same contract without emailing versions around.
Every figure in the Luminance, Harvey, Legora and CoCounsel rows is reported by a third party, not published by the vendor. Only the last row is a price you can read off a page and pay today.
| Vendor | Publishes a price | Reported cost | What decides your quote | How you buy |
|---|---|---|---|---|
| Luminance | No | About $43,000 to $60,000 a year implied average | Document volume and modules | Demo, pilot, contracts typically 36 months |
| Harvey | No | Widely reported at $1,200 to $2,000 a seat per month, though Harvey's own 2026 ROI calculator implies $288 to $500 | Seats, with a reported minimum near 20 | Enterprise sales, annual |
| Legora | No | Reported about $3,000 a seat per year | Seats, with a reported 10-seat minimum | Demo and pilot, annual |
| CoCounsel | No | Reported $104 to $784 a user per month, near $639 for a solo Westlaw bundle | Westlaw content tier plus the AI layer | Sales above 10 attorneys |
| Spellbook | No | Reported $89 to $199 a user per month on annual terms | Seats on a license | Trial for firms, demo for in-house |
| LegalSoul | Yes | $99, $299 or $1,749 a month, listed | Reviews per month, not seats | Sign up and run one now |
The reported figures for each rival are broken down with their sources on our Legora pricing page, CoCounsel pricing page, Spellbook pricing page and Lexis AI pricing page.
To be straight about our own limits: LegalSoul reviews one document at a time. It does not manage a contract repository, it does not negotiate on your behalf, and it does not track obligations across a signed portfolio. It also has no SOC 2 report and no SAML single sign-on, which will matter if your client security questionnaires ask for them. What it does is read a contract, lease, brief or exhibit and hand back the issues, risky clauses, missing terms and page cites in under a minute, at a price printed on the pricing page.
Because the pricing model is volume-based and undisclosed, the quality of your quote depends almost entirely on how precisely you scope the call. Ask these in this order.
There is a cheap sequencing trick here that most buyers miss. Before you spend a quarter in procurement finding out what Luminance costs, find out how much of your actual pain is document reading rather than repository management. Take the five documents that caused the most trouble last month, run them through a review tool that charges a listed monthly price, and see what proportion of the problem disappears.
If the answer is most of it, you have saved yourself a six-figure conversation. If the answer is that the reading was never the bottleneck and the real issue is that nobody knows what is in the 2,000 contracts already signed, then you have learned something worth knowing before the demo, and you will scope the Luminance call far better for it.
The upload box at the top of this page runs on the real product. One document, no sales call, and the plans are listed from $99 a month.
Luminance publishes no price. The only figure grounded in its own reported numbers is arithmetic: about $42,900 a year per customer at the $30M ARR and 700 customers reported for late 2024, rising to roughly $60,000 against $60M ARR and the 1,000 customers Luminance now claims. Buying guides put a mid-size first-year rollout in the five to six figure range, with implementation on top.
No. As of September 17, 2026 luminance.com shows no price, no plan names and no signup path, and luminance.com/pricing returns a 404. Every dollar figure circulating online is a third-party estimate. One of the better known pricing pages, from Bind Legal, declines to publish a Luminance number at all on the grounds that no verifiable source exists.
Luminance is a custom enterprise subscription that meters on document volume rather than purely on seats. Independent pricing analysis describes the billable metric as monthly recurring fees based on document count, scaling with the total volume of documents stored in the system, on contracts that typically run 36 months. That is the variable that decides your quote.
Rarely on terms that make sense. Luminance is built for legal departments and firms with a large contract repository, sold through a demo and a multi-year contract, with a rollout measured in weeks to months. A firm of two to ten lawyers that simply needs contracts and leases read for risk is buying a repository platform to do a reading job. Our guide to the best AI for solo practitioners compares fourteen tools that publish a price.
It earns its price where contract volume is genuinely high: diligence across thousands of agreements, obligation tracking across a live repository, and autonomous negotiation of routine NDAs. It is hard to justify when the real job is reading a few dozen documents a month for risk, which a published document review plan handles for a fraction of one Luminance contract.
Luminance is a contract intelligence platform organized into six products: Draft, Negotiate, Analyze, Comply, Investigate and Collaborate. It reviews clauses against a standard with a red, amber and green traffic light, answers questions across an entire repository, negotiates routine NDAs with an autopilot, and supports diligence at a scale a person cannot read.
Luminance sells through a demo and a scoped pilot, not a self-serve trial. There is no signup button on luminance.com. Expect a discovery call, a proof of concept negotiated as part of the contract, and an implementation line item that third-party guides put at roughly 20 to 50 percent of the first-year license fee.
On contract review and diligence, Luminance is compared most often with Kira (now part of Litera), Spellbook, Robin AI, Evisort, LawGeex and Ironclad. On broader legal AI platforms it comes up against Harvey, Legora and Thomson Reuters CoCounsel. Of that group, the ones that publish a price are the exception rather than the rule. Firms priced out of Harvey can read our Harvey AI alternative page for small law firms.
No, and the two are easy to confuse in search results. Luminance in this article is the legal AI company founded in Cambridge in 2015 by mathematicians and backed by Slaughter and May. Luminance Milano is an unrelated skincare brand, and Caran d Ache Luminance is a line of colored pencils.
Independent pricing analysis reports 36-month contracts as typical, with custom negotiated terms and multi-year agreements the norm. Contract length matters as much as the annual number here: a 36-month term turns a $60,000 quote into a $180,000 commitment, so ask what a 12-month term costs before you assume three years is the only option.
Upload one contract, brief or lease and read the issues, risky clauses and page cites in under a minute. Plans are published from $99 a month, with no seat minimum and no sales call.
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