How Much Does CoCounsel Cost? CoCounsel Pricing for Solos and Small Firms

Thomson Reuters now publishes CoCounsel Legal prices online for law firms of up to 10 attorneys, new customers only. Read on 9 October 2026, one attorney with all states plus federal costs 784 dollars per month on a 1-year plan, 686 on 2 years and 637 on 3 years, before tax. Ten attorneys come to 4,224 dollars a month on 1 year, or 422.40 per attorney. Firms above 10 attorneys and existing customers still go to a sales representative. For those buyers, third-party trackers report a wide per-seat range, but only a written quote from Thomson Reuters is authoritative, and the bundle you are quoted matters more than the headline number.

That is a far better answer than this market usually gives, so here is the full published table, where the circulating numbers come from, how the pricing model works, and how to decide whether the spend fits your practice.

There is one lever most write-ups miss, and it is worth leading with. Thomson Reuters sells CoCounsel in four named configurations: CoCounsel Legal, Westlaw Advantage with CoCounsel Essentials, Practical Law Dynamic Tool Set with CoCounsel Essentials, and CoCounsel Essentials on its own. CoCounsel Legal, the top one, contains full Westlaw Advantage, the Practical Law Dynamic Tool Set and CoCounsel Essentials. Westlaw Advantage sold on its own also has a published small-firm price, at 256.75 dollars per user per month for single-circuit coverage and 399.75 dollars for all states plus federal. Put the two published numbers side by side and the AI layer plus Practical Law costs about 384 dollars a month for one attorney on all states plus federal (784 against 399.75), and that is the single most useful anchor you can carry into a sales call above 10 attorneys. We break the tiers down side by side in CoCounsel Legal pricing and tiers.

How much does CoCounsel cost per month?

Start with what Thomson Reuters itself publishes, because that is the only part that is not secondhand. The CoCounsel Legal plans and pricing page for law firms asks you to choose a number of attorneys, from 1 to 10, and a jurisdiction, either all states and federal or one federal circuit, then shows a monthly price before tax on 1, 2 and 3 year plans. A 2-year plan is 12 percent off and a 3-year plan 18 percent off. Online pricing is for new customers only, existing customers are told to contact sales, and above 10 attorneys the configurator hands you to a sales rep. These are the figures we read on 9 October 2026.

The smaller configurations are published on the same site. For one attorney on a 1-year plan, Westlaw Advantage with CoCounsel Essentials is 639.20 dollars a month for all states plus federal (519.35 on 3 years), and CoCounsel Essentials alone is 360 dollars (292.50 on 3 years). We did not read a price for Practical Law Dynamic Tool Set with CoCounsel Essentials. Pricing trackers, resellers, and competitor blogs still circulate per-seat estimates across a very wide band, and those now matter mainly for what Thomson Reuters does not price online: firms above 10 attorneys and existing customers.

Treat the third-party figures as directional. They are not rate cards, they move, and they depend on a configuration you have not specified yet. At 10 attorneys or fewer, the published table is the number to hold a rep to; above that, the number that binds anyone is the one on your quote.

Why is CoCounsel pricing only partly published?

Because above the small-firm line it is negotiated, and publishing it would anchor every negotiation. This is the same model Westlaw and LexisNexis have used for decades: a discovery conversation about your practice areas, jurisdictions, and headcount, then a quote with a term attached. Thomson Reuters added a self-serve configurator for smaller firms, and for CoCounsel Legal it now shows real prices for up to 10 attorneys, which is a genuine improvement over a pure sales call. Above that line, and for existing customers renewing, it is still a quote.

The practical consequences are the ones every firm above that line runs into. You cannot budget from a web page. You cannot compare vendors without giving two sales teams your details. And renewal is a negotiation, because the sticker drifts upward unless you push. Firms that treat renewal as a real negotiation, with a competing quote in hand, consistently do better than firms that just sign the paper.

Does CoCounsel require a Westlaw subscription?

This is the question that changes the arithmetic, and it is the one people skip.

CoCounsel is commonly sold attached to Westlaw rather than as a freestanding product, and several plan configurations explicitly pair Westlaw Advantage with CoCounsel Essentials. So when you read that CoCounsel costs roughly one hundred to two hundred dollars per user per month as an add-on, that figure is often describing the increment on top of a Westlaw subscription you also have to buy. The real monthly cost per seat is the base plus the add-on, which is how firms that budgeted for the add-on price end up looking at an invoice two or three times larger. The published figures make the point: CoCounsel Legal at 784 dollars for one attorney on all states plus federal contains Westlaw Advantage, which alone is 399.75.

Ask directly, in writing, two things: whether the configuration you have been quoted includes a Westlaw subscription, and what the same CoCounsel capability costs without one. If the answer to the second is that it is not sold that way, you now know you are buying Westlaw with an AI layer, not an AI research tool, and you should price it against that.

Is CoCounsel worth it for a solo attorney?

Sometimes, and the honest test is how much of the suite you will open. Our CoCounsel review works through that test against the four Thomson Reuters plans, and if the other option on your desk is a general AI seat, the CoCounsel vs Claude pricing comparison sets the two side by side.

CoCounsel is a serious product. It grew out of Casetext, which was the most-liked research tool in its price bracket before Thomson Reuters acquired it for 650 million dollars in 2023 and retired the standalone product on April 1, 2025. Thomson Reuters put the Westlaw content library and KeyCite behind it and relaunched it as CoCounsel Legal in August 2025. If you do document-intensive litigation, if you need review and drafting and a citator you can defend in front of a judge, and if research time is billable on your invoices, the bundle can pay for itself inside one matter.

The case against is arithmetic. At the published 784 dollars per month for all states plus federal on a 1-year plan you are spending 9,408 dollars a year before you bill an hour, and even one circuit on a 3-year plan, at 551.85 a month, is about 6,622 a year on a term contract, for a suite whose document review and drafting modules a lot of solos never touch. A solo who researches a few times a month, in one state, on a familiar set of issues, is funding enterprise capability to answer questions a focused tool answers for a fraction of the cost.

The question is not whether CoCounsel is good, because it is. The question is whether the marginal thing it gives you over a cheaper tool plus your bar's free library is worth what those dollars would do elsewhere in the practice. For plenty of small firms the research line is oversized relative to everything else, and the same money put toward the first real hire, where you can source and screen the candidates without a recruiter's percentage, compounds faster than a wider research plan ever will.

What are the cheaper alternatives to CoCounsel?

There is a ladder, and most small firms end up standing on more than one rung.

Your bar association benefit

Check this before you spend anything. Dozens of state and specialty bars include a Fastcase library, now part of vLex under Clio, in your annual dues, and a large share of American lawyers have it and forget. If you already have it, use it. Paying twice for the same opinions is not thrift. The gap it leaves is the search experience, covered on our Fastcase alternative page.

Free sources

Google Scholar, CourtListener, and state judiciary sites publish appellate opinions at no cost, and they are excellent at handing you a case you already know about. They are weak at two jobs: surfacing a case you do not know exists, because keyword search rewards guessing the court's vocabulary, and telling you whether a case is still good law, because none of them ships a citator.

Focused paid tools

Between free databases and enterprise suites sit tools that do the find-and-verify loop for a published price. That is where Cases sits. You describe the issue in plain English instead of building a boolean query, you get on-point precedents back with a plain-English summary, the holding, and a real citation, and you pay 49 dollars a month with the price on the page and no term. It is not a suite. No dockets, no drafting, no proprietary citator. It finds the case and shows you the citation to check, and the full feature list sets out exactly where that line is drawn. Solos weighing the same trade-off will find the day-to-day version on our page for legal research for solo attorneys. The honest comparison, including where CoCounsel wins, is on our CoCounsel alternative page, and the background on the shutdown is in what happened to Casetext.

How to negotiate a better CoCounsel quote

A few things reliably work, and none of them are clever.

• Get a competing quote first. LexisNexis prices the same way and wants the same seat. Tell each vendor you are talking to the other. This single step moves more money than everything else on this list.
• Price the term honestly. A three year term at a discount is only cheaper if you are certain you want the tool in year three. Casetext subscribers learned in April 2025 that the vendor's plans can change faster than your contract.
• Scope the jurisdictions you actually practice in. Coverage drives price. Paying for all-states plus federal when you file in one state is the most common overspend in this category.
• Ask what happens outside your plan. Out-of-plan usage in this product family has historically been billed separately, and that is how a predictable monthly number turns into a surprise invoice when a matter drags you into an unfamiliar jurisdiction.
• Put the renewal price in the first contract. If you can cap the increase at signing, do it. It is far easier than arguing about it two years later.

The bottom line on CoCounsel pricing

CoCounsel Legal now has a public price for firms of up to 10 attorneys, 784 dollars per attorney per month on a 1-year plan for all states plus federal and 637 on 3 years, it contains Westlaw Advantage, it is sold on one to three year terms, and above 10 attorneys the figures circulating online are estimates rather than rates. If you need the full suite and you bill enough to fund it, check the online price or get the quote, negotiate the term, and confirm what is bundled. It also helps to know where the quote sits against the rest of the market, which our legal research pricing comparison lays out vendor by vendor. If what you actually need is to find the on-point case, read the holding, and cite it correctly, that is a much smaller purchase than the one you are being pointed toward, and you can see the price before you talk to anyone.

Whatever you buy, verify every citation at the source. Courts have sanctioned lawyers over AI-generated cases that nobody checked, and no vendor removes that duty from you. Cases is informational research, not legal advice.