CoCounsel Pricing: Cost, Bundles, and the Westlaw Catch
Thomson Reuters does not publish a per-seat price for CoCounsel. What it does publish is the price of the research subscription CoCounsel is sold on top of. Westlaw Advantage lists at $256.75 per attorney per month for single-circuit coverage and $399.75 per attorney per month for all states plus federal, with 12% off a two-year subscription and 18% off a three-year subscription. Both figures were verified on the Thomson Reuters sales site on August 18, 2026, and both are available online only to law firms with up to 10 attorneys. The AI layer itself is quoted rather than listed. That is the real shape of CoCounsel pricing: the number you can look up is the content subscription, the number you negotiate is the bundle, and every per-seat figure circulating for the AI component is an unsourced report rather than a published rate.
We don't sell CoCounsel, we don't sell a CoCounsel alternative, and no vendor pays to influence this page. Our directory listing for CoCounsel records it as "pricing on request" for the same reason it records Harvey and Legora that way. What follows separates what Thomson Reuters actually publishes from what gets repeated, and then does the arithmetic a buying committee has to do anyway.
How is CoCounsel actually sold?
CoCounsel is not a standalone AI subscription with an optional research add-on. It is the reverse. Thomson Reuters sells four configurations on its legal plans page, and three of the four bundle the AI with licensed content:
- CoCounsel Essentials, the document analysis and drafting layer on its own, covering review, comparison, contract policy compliance, summarization, timelines, drafting, and deposition preparation.
- Westlaw Advantage with CoCounsel Essentials, which adds Deep Research, the Litigation Document Analyzer, litigation analytics, Claims Explorer, AI Jurisdictional Surveys, KeyCite, the West Key Number System, headnotes, caselaw, and statutes.
- Practical Law Dynamic Tool Set with CoCounsel Essentials, the transactional equivalent.
- CoCounsel Legal, the full stack, sold on one-year, two-year, and three-year terms.
Every one of those plan cards carries the same line: more than 10 attorneys, contact a sales rep.
The packaging follows the ownership history. Thomson Reuters completed its acquisition of Casetext, the original CoCounsel developer, on August 17, 2023 for $650 million in cash. Two years later it launched CoCounsel Legal alongside a rebuilt Westlaw, with Deep Research grounded in Westlaw and Practical Law content. A product that once sold as a standalone AI assistant became a feature tier of a research business. You can trace the same pattern across the market in our legal AI acquisitions tracker: the assistant gets absorbed into the content subscription, and the content subscription is what gets priced.
That is the catch buyers keep missing. Asking "what does CoCounsel cost" produces an answer only if you also specify which content you are carrying, in which jurisdictions, on what term length.
What do the reported price ranges look like?
Here is the honest split.
Published and verifiable (checked August 18, 2026):
| Item | Published price | Conditions |
|---|---|---|
| Westlaw Advantage, single-circuit coverage | $256.75 per attorney per month | Online pricing, firms up to 10 attorneys |
| Westlaw Advantage, all states plus federal | $399.75 per attorney per month | Online pricing, firms up to 10 attorneys |
| Multi-year discount | 12% off two-year, 18% off three-year | Applies across the Westlaw and CoCounsel Essentials plans |
| CoCounsel Tax Essentials | $1,300.00 per year | Tax and accounting firms with up to 10 users |
The tax figure is a different product line, and it is included here for one reason. It shows Thomson Reuters will publish a self-serve annual price when the product is simple enough to sell that way. On the legal side it does not.
Not published: any per-seat rate for CoCounsel Essentials, for Westlaw Advantage with CoCounsel Essentials, or for CoCounsel Legal. Those pages describe the feature sets and the term discounts, then route you into a configurator or a sales call.
Numbers do circulate anyway. The publicly repeated per-seat figures for CoCounsel currently span from roughly $100 per user per month at the low end to well over $1,000 per seat per month for a full research, Practical Law, and AI stack. We are describing that spread, not adopting it. None of those figures traces back to a Thomson Reuters price list, they disagree with one another by an order of magnitude, and a large share of the pages publishing them are operated by companies selling a competing legal AI product. A rival vendor's estimate of your incumbent's price is marketing, not data. The same problem runs through the category, which is why our legal AI pricing guide labels every number as published or reported and names the publisher.
What does the Westlaw bundle mean for total cost?
The useful exercise is not guessing the AI rate. It is building the total-cost model around the part that is published, then treating the AI line as the single variable you negotiate.
Take a five-attorney firm buying new, which fits inside the 10-attorney online pricing window. Start with the research base, straight from the published Westlaw Advantage rates:
| Research base, five attorneys | Single-circuit coverage | All states plus federal |
|---|---|---|
| Per attorney, per month | $256.75 | $399.75 |
| Five seats, per month | $1,283.75 | $1,998.75 |
| Annual, one-year term | $15,405.00 | $23,985.00 |
| Annual at the two-year rate (12% off) | $13,556.40 | $21,106.80 |
| Annual at the three-year rate (18% off) | $12,632.10 | $19,667.70 |
Now layer the AI. Because Thomson Reuters publishes no seat rate, the table below is scenario arithmetic, not a set of quotes. Each row shows what a given incremental rate does to the five-attorney first-year total on a one-year term.
| Assumed CoCounsel rate per attorney per month (illustration, not a quoted price) | Added per year, five seats | Total with single-circuit base | Total with all-states base |
|---|---|---|---|
| $100 | $6,000 | $21,405 | $29,985 |
| $200 | $12,000 | $27,405 | $35,985 |
| $300 | $18,000 | $33,405 | $41,985 |
| $400 | $24,000 | $39,405 | $47,985 |
Two things fall out of that grid. First, the jurisdiction choice alone is worth $143.00 per attorney per month, which is $8,580 a year across five seats, before a single AI feature is switched on. Second, a $100 movement in the AI rate moves the first-year total by $6,000 for this firm. So the question to put to a sales rep is never "how much is CoCounsel." It is: what is the incremental rate over our research line, is that increment locked for the full term, and what does it reset to at renewal.
Ask the renewal question in writing. Online pricing at Thomson Reuters is offered to new customers only, so the published rate above is an acquisition price. Once you are a customer, your next price comes from a rep. That structure rewards firms that model years two and three at signature rather than at renewal, especially with AI budgets under pressure across the profession. The ABA Journal, reporting on a Law.com survey of Am Law 100 firms and rising AI expenses, found nearly 70% of respondents saying AI and innovation investment rose more than 5% through the second quarter of 2026, with more than a quarter expecting increases above 15% by year end. Large firms are absorbing that. A five-attorney firm has to plan for it.
How does the small-firm configurator work?
Thomson Reuters runs a hard line at 10 attorneys.
Under that threshold, you can configure and see a price yourself. The configurator asks for four inputs: your sector, your number of attorneys, your jurisdiction, and your preferred plan duration. It returns a plan you can buy online, and Thomson Reuters says most customers get access within one business day of signing up. Term length is the lever you control most directly, at 12% off for two years and 18% off for three.
Above 10 attorneys, every plan card sends you to a sales rep, and there is no published starting point to anchor against. The eleventh attorney does not raise your rate mechanically. It moves you from a listed price to a negotiated one, which is a different procurement exercise with a different information balance.
Three practical notes for firms sitting near that line. Jurisdiction scope is the biggest single published variable, so map which circuits you actually file in before buying all-states coverage by default. Term discounts compound with seat count, which makes the three-year decision worth more to a nine-attorney firm than most partners assume. And the online price is a new-customer price, so a firm migrating from an older Westlaw contract should expect its quote to be built differently from the one on the public page. Our evaluation framework for legal AI covers the rest of the diligence, including the questions that surface usage caps.
How does it compare to standalone rivals?
Very few competitors publish anything either. Of the research and drafting platforms in our directory, Paxton is the one with a rate card you can read without a call, at $499 per user per month or $2,999 per user per year, with custom enterprise pricing above that. Harvey, Legora, Lexis+ AI, Alexi, and Midpage are all pricing on request. We compared the three enterprise contenders on capability and buying posture in Harvey vs CoCounsel vs Legora.
The comparison that matters is not seat rate against seat rate. It is total spend against total spend. CoCounsel's price carries licensed primary law, KeyCite, and Practical Law inside it. A standalone AI assistant that does not own a caselaw database is either licensing content from someone else or assuming you keep paying your existing research provider. A $200 AI seat sitting on top of a research subscription you still renew is not cheaper than a $400 bundled seat. It is the same money in two invoices, and sometimes more.
Run the arithmetic both ways before you compare quotes: research plus AI as one line, against research plus AI as two, over the same term.
Frequently asked questions
Can you buy CoCounsel without Westlaw? Yes. CoCounsel Essentials is offered as its own plan covering document analysis, drafting, review, comparison, summarization, timelines, and deposition preparation. What you give up is the research layer. Deep Research, KeyCite, the West Key Number System, caselaw, and statutes come with the Westlaw Advantage configurations. If your firm already pays another research provider, the standalone plan is the honest comparison point. If your research budget is up for renewal at the same time, the bundle math usually beats it.
How much is CoCounsel per user? Thomson Reuters does not publish a per-user figure for any CoCounsel legal plan, and we will not repeat an unsourced one. The published anchor is the research subscription underneath it, at $256.75 or $399.75 per attorney per month for Westlaw Advantage depending on jurisdiction scope, verified August 18, 2026. Get the AI increment over that line quoted in writing, per seat and per year, and ask what it becomes in year two.
Does CoCounsel offer contract discounts? Yes, and they are published. Thomson Reuters lists 12% off a two-year subscription and 18% off a three-year subscription across the Westlaw Advantage and CoCounsel Essentials plans, and CoCounsel Legal is sold in one-year, two-year, and three-year terms with longer terms described as offering greater savings. Those are the discounts on the public page. Anything beyond them is negotiated.
Is CoCounsel priced for small firms? It is priced at small firms, in the sense that firms with up to 10 attorneys can configure and buy online rather than waiting on a quote, which is more than most enterprise legal AI vendors offer. Whether it is affordable depends on the jurisdiction scope and term you choose. A five-attorney firm on single-circuit coverage with a three-year term starts at $12,632.10 a year for research alone. The same firm on all-states coverage at a one-year term starts at $23,985.00. The AI increment lands on top of whichever base you pick.
Pricing is one input, and it is the one vendors control the framing of. Before you commit to a term, see every legal research tool side by side in our legal research category, where listings are free, featured placement is labeled, and nothing a vendor pays for changes the order.