For US firms budgeting legal AI
Legal AI Pricing Comparison and Legal AI Software Pricing by Seat
Most legal AI vendors will not print a price, and the few that do bill in different units. This page lines up every published price we could verify, attributes the reported ones, and shows what each tool costs for a firm of your size.
Prices come from each vendor's own pricing page. Where a vendor prints none, we say so and name the source of any reported figure.
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How much does legal AI cost?
Legal AI tools that publish a price cost roughly $100 to $500 per user a month: Clio Work is $199, Irys One $299, Clearbrief $300 and Paxton $499. The enterprise names, CoCounsel, Lexis+ with Protégé, Harvey and Legora, print no price at all and sell by quote, often with seat minimums. CaseClerk is priced per account rather than per user, from $99 a month.
The quote-only tools are where budgets go wrong, because the figures that circulate online disagree by a factor of five or more. We cover each one in depth: CoCounsel pricing, Harvey AI pricing and seat minimums, Lexis+ AI pricing and Legora pricing.
- $199
- Clio Work per user a month, the lowest published price among full legal AI workspaces
- $499
- Paxton Individual per user a month on monthly billing ($2,999 a year)
- 0
- Published prices from CoCounsel, Harvey, Legora, Spellbook, EvenUp, Supio and Eve
- $99
- CaseClerk Solo per account a month, not per user
What drives legal AI pricing
- Per seat, per account or per page
- Clio Work, Irys, Paxton and Clearbrief bill every user. Laine bills by plan size, CaseMark by the document, Everlaw by the gigabyte, and CaseClerk by pages for the whole account. The unit decides who on your team gets access.
- Seat minimums
- Enterprise tools are reported to require 10 to 25 seats before they will quote. A five lawyer firm can be priced out of Harvey or Legora before price per seat even comes up.
- Multi-year terms
- Thomson Reuters publishes 12% off a 2 year CoCounsel term and 18% off a 3 year term. Clearbrief points Solo buyers to multi-year agreements. A lower rate usually means a longer lock-in.
- AI bundled into research
- Westlaw and Lexis fold AI into the research subscription, so the AI price is rarely a separate line. You compare a whole bundle, not an AI add-on.
- Usage caps and credits
- Legora moved to consumption credits in June 2026, Casefleet includes AI credits per user, and Irys Lite caps you at 12 messages a day. Read what happens after the allowance, not just the headline price.
- Whether you can test first
- Irys, Paxton and Laine run 7 day trials and Casefleet 14 days. Most quote-only vendors start with a demo, which shows their data, not yours.
How to compare legal AI pricing for your firm
-
1
Count who touches the file
List every lawyer, paralegal and assistant who would use the tool weekly. Per-seat prices multiply by this number, so it is the most important input.
-
2
Name the job you are paying for
Research, drafting, brief checking, contract review and reading a case file are different products. Price the tool that does your bottleneck, not the broadest suite.
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3
Run one closed matter through a trial
Use a case where you know the answers. Upload it to CaseClerk and to any tool with a trial, ask the same ten questions, and check the cited source behind each answer.
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4
Total the yearly cost
Multiply by seats, add overages, storage and onboarding, and subtract only the discounts you would actually sign for. Compare that number, not the monthly headline.
Legal AI software pricing by tool
Published means the price appears on the vendor's own page. Reported figures come from third parties and are attributed in the next section.
| Tool | Printed price | Billed per | Trial | Best for |
|---|---|---|---|---|
| Clio Work | $199 a month | User | Ask Clio | Firms already on Clio practice management |
| Irys | $299 One, $329 Teams (2 to 25 seats), $19.99 Lite | Seat | 7 days, no card | Research and drafting for small teams |
| Clearbrief | $300 Solo, Enterprise quoted | User | Not stated | Cite-checking and hyperlinking briefs in Word |
| Laine | $350 Solo to $7,499 Firm (22 users) | Plan | 7 days | Transactional solo and small firms |
| Paxton | $499 a month or $2,999 a year | User | 7 days | Solo research and drafting |
| Casefleet | $30 Starter (no AI), $140 Advanced AI | User | 14 days | Litigation chronologies |
| CaseMark | $25 per deposition summary | Document | Pay per use | One-off summaries and chronologies |
| CoCounsel | No list price | User (quoted) | Demo | Westlaw research firms |
| Lexis+ with Protégé | No list price | User (quoted) | Demo | Lexis research firms |
| Harvey | No list price | Seat, with minimums | Demo | Large firms and legal departments |
| Legora | No list price, consumption credits | Seat plus credits | Demo | Mid-size and large firms |
| Spellbook | Custom | Team size | 7 days | Contract drafting in Word |
| EvenUp, Supio, Eve | No list price | Quoted | Demo | Plaintiff personal injury firms |
| CaseClerk | $99, $249, $499 or $998 a month | Account, by pages | 25 pages, no card | Answering questions across a whole matter with the source named |
CaseClerk is not legal research, drafting or practice management software. It reads the documents you upload and answers with citations to them.
Who this comparison is for
Solo attorneys
You will pay for one seat either way, so per-user and per-account prices look similar. What matters is whether the tool does your slowest task and whether you can test it on your own file before paying.
Firms of 3 to 15 lawyers
This is where per-seat pricing bites. Five users on Paxton cost $2,495 a month, on Irys Teams $1,645, on Clio Work $995. A tool billed per account does not change price when you add a paralegal.
Plaintiff personal injury practices
EvenUp, Supio and Eve all sell by demo. If the work you want to speed up is reading medical records and depositions, you can price that job on a real claim first.
Litigation boutiques
Casefleet, Clearbrief and the research suites each cover one slice of the case. Pricing them side by side shows which slice you are paying the most for.
Legal AI pricing by firm size
Monthly cost on monthly billing, before discounts. Seat counts assume every user needs access; CaseClerk is one account regardless of headcount, sized by pages.
| Tool | 1 user | 5 users | 10 users |
|---|---|---|---|
| Clio Work | $199 | $995 | $1,990 |
| Irys (One for 1, Teams for 5 and 10) | $299 | $1,645 | $3,290 |
| Clearbrief Solo | $300 | $1,500 | $3,000 |
| Paxton Individual | $499 | $2,495 | $4,990 |
| Casefleet Advanced AI | $140 | $700 | $1,400 |
| Laine | $350 (Solo) | $2,499 (Boutique, up to 9) | $4,999 (Practice, up to 15) |
| CaseClerk | $99 (2,500 pages) | $249 (10,000 pages) | $499 (30,000 pages) or $998 (60,000) |
Annual billing changes the picture. Paxton's annual price works out to about $250 a month, Irys One to about $254, and CaseClerk's annual plans cost 6 months' price, which halves them. Casefleet and Clearbrief discount through annual or multi-year terms on request. See Casefleet pricing and Clearbrief pricing for the per-user math.
Quote-only legal AI and what buyers report
None of these vendors publish a price. The figures below are what third parties report, and they often disagree. Treat them as a range to test against your quote, not a number to budget.
| Tool | What the vendor publishes | What is reported (source type) |
|---|---|---|
| Thomson Reuters CoCounsel | No list price; 12% off a 2 year term, 18% off a 3 year term | Anywhere from about $75 to over $600 per user a month across review and pricing sites |
| Lexis+ with Protégé (replaced Lexis+ AI on February 24, 2026) | No list price; quotes by phone | About $250 to $475 per user a month all-in, per legal tech publishers |
| Harvey | No pricing page, demo only | About $1,200 per seat a month and 20 to 25 seat minimums per third-party reports; "a few hundred dollars per seat" in a Fast Company interview |
| Legora | No list price; consumption credits since June 2026 | About $3,000 per user a year with a 10 seat minimum, per secondhand reports |
| Spellbook | "Custom", set by number of team members | Figures from about $99 to $500 per seat a month on review sites |
| EvenUp, Supio, Eve | Demo only | No consistent public figure |
The detailed breakdowns are on our pages for EvenUp pricing, Supio pricing, Eve Legal pricing and Spellbook pricing.
How do I choose a legal AI pricing plan that fits my firm's attorney headcount?
Start from the number of people who will use the tool every week, multiply each per-seat price by that number, and compare the total with tools billed per account or per document. Under five users, per-seat tools with a trial are usually fine. From five users up, seat minimums and per-user pricing dominate the cost, and a per-account plan or a per-document service is often cheaper for the reading and summarizing work.
Then check the job. A firm that mainly needs research should compare CoCounsel, Lexis+ with Protégé, Paxton and Irys. A firm that loses hours reading productions, depositions and medical records needs a tool that answers questions across the file and shows where the answer came from. That is the job CaseClerk is built for, and it is the one you can test today on a real matter.
Per seat versus per account pricing
Per-seat pricing is simple to understand and expensive to grow. Every new associate or paralegal adds a full license, so firms ration access and the tool ends up used by two people. Per-account pricing charges for volume instead, in CaseClerk's case pages of documents, so the whole team can ask questions of the same matter without a seat count. The trade-off is a volume ceiling: Solo covers 2,500 pages a month, Professional 10,000, Firm 30,000 and Enterprise 60,000.
Neither model is better in every case. If one attorney does all the AI work, a single seat is the cheapest route. If five people need to look things up in the same case file, paying by volume usually wins.
Legal AI pricing questions from law firms
How much does legal AI cost?
Which legal AI tools publish their prices?
How much does Harvey AI cost per seat?
Is CoCounsel included in Westlaw?
What is the cheapest legal AI for a solo attorney?
Why do legal AI vendors hide their pricing?
Get a real price for the reading part of your caseload
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CoCounsel pricing
What Thomson Reuters publishes, the multi-year discounts and the reported spread.
Harvey AI pricing
Reported seat prices, minimums and what a small firm can do instead.
Lexis+ AI pricing
Lexis+ with Protégé packaging and the reported all-in cost per user.
Legora pricing
Seat minimums, consumption credits and what buyers report paying.
Spellbook pricing
How Spellbook sets a custom price by team size.
Clio Work pricing
The $199 per user standalone plan and what it includes.
Laine AI pricing
Five published plans from $350 to $7,499 a month.
Clearbrief pricing
$300 per user on Solo, and why directories still show $150.
Casefleet pricing
Starter and Advanced AI after the 2026 increase.
EvenUp pricing
What plaintiff firms report paying per demand.
Supio pricing
Supio's quote process and what to ask for.
Eve Legal pricing
Eve's demo-only pricing for plaintiff firms.
Kira pricing
Contract analysis pricing from Litera.
Luminance pricing
Quote-based contract AI and what drives the price.
Relativity pricing
RelativityOne hosting and review costs.
Everlaw pricing
Everlaw cost per GB hosted.
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