AI can already speed up legal research, document review and first drafts at a small firm, but every citation and fact still needs a lawyer's check. For most small firms we would start with CoCounsel Legal from Thomson Reuters, because its answers draw on Westlaw and Practical Law with linked citations and it works inside Word and Outlook; if you want AI built into your practice management software instead, MyCase Pro is the clearest value at $100 per user a month billed yearly.
Legal AI tools are widely sold and save real time on drafting and review, but published studies show even legal specific tools still get answers wrong, so lawyer review is mandatory.CoCounsel Legal
Best for small firms that want research and drafting grounded in Westlaw, with citations you can check.
CoCounsel Legal is Thomson Reuters' AI assistant for lawyers. You describe a matter in plain language, it builds a step by step plan you can inspect, and then it researches, analyzes and drafts CoCounsel Legal ↗. Its answers draw on Westlaw primary law, Practical Law guidance and your own firm's documents, with linked citations CoCounsel Legal ↗. That grounding is the main reason we put it first: a tool connected to a real legal database, with links you can click, is easier to check than a general chatbot.
It covers the jobs a small litigation or transactional practice does every week. Westlaw Brief Builder helps assemble briefs while the attorney reviews facts, arguments and citations, and Tabular Analysis can review up to 10,000 documents against 100 questions, with answers traced to the source CoCounsel Legal ↗. It works inside Microsoft Word, Outlook and Teams, and connects to document systems such as NetDocuments, iManage, SharePoint and Box, plus Smokeball for practice management CoCounsel Legal ↗. Thomson Reuters says it is SOC 2 and ISO 42001 certified and that client data is not used to train the underlying models CoCounsel Legal ↗.
There are two big caveats. First, prices are not published; Thomson Reuters routes small firms, including firms under 10 attorneys, to a plans page and sales CoCounsel Legal ↗. Second, grounding does not mean perfect. A Stanford study found that Thomson Reuters' earlier Westlaw AI-Assisted Research tool gave incorrect information more than 34 percent of the time on its test questions, and Ask Practical Law AI more than 17 percent Stanford HAI study ↗. CoCounsel Legal is a newer product, but the lesson stands: read every case it cites. Hands on testing is in progress; we will update this guide with results.
Why we like it
- Research grounded in Westlaw and Practical Law with linked citations
- Works inside Word, Outlook and Teams
- Reviews large document sets against your questions
- Says client data is not used to train models
Flaws but not dealbreakers
- No published prices; you must talk to sales
- No free trial mentioned, only a demo
- Earlier Thomson Reuters AI research tools made frequent errors in a Stanford study
MyCase
Best for small firms that want AI inside the software they already use to run cases and billing.
For many small firms the cheapest useful AI is the kind built into practice management software, because it already knows your matters, contacts and documents. MyCase publishes clear prices: Basic is $50 per user a month billed yearly, Pro is $100 and Advanced is $130, with monthly billing at $60, $120 and $150 MyCase pricing ↗. There is a 10 day free trial with full access and no credit card MyCase pricing ↗.
AI starts on Pro, which includes the 8am IQ Writing and Document Assistant MyCase pricing ↗. Advanced adds a Case Assistant and a Discovery Assistant that reads scanned documents, with 5,000 pages per user each month shared across the firm; extra pages cost $30 per 5,000 MyCase pricing ↗. Payments through LawPay have no monthly fee, and an accounting add on costs $39 per user a month MyCase pricing ↗.
The tradeoff is depth. MyCase's AI helps with writing and case documents, not with legal research against a case law database. Many firms will pair it with a research tool like CoCounsel Legal or Lexis+ AI.
Why we like it
- Clear, published prices
- 10 day free trial, no credit card
- AI writing assistant from the Pro plan
- Discovery document assistant on Advanced
Flaws but not dealbreakers
- No AI on the Basic plan
- Not a legal research tool
- Case and discovery AI only on the top plan
Clio
Best for growing firms that want practice management and legal AI from one large vendor.
Clio is the best known practice management platform for small firms. It says it serves more than 400,000 legal professionals, offers more than 300 app integrations and is SOC 2 Type II certified Clio features ↗. Its plans start at $49 per user, and AI features are included on Core and above, not on Starter Clio pricing ↗. The Core plan lists automated billing and AI generated client updates Clio pricing ↗.
Clio Work is the company's legal AI workspace. It offers matter based research, document and recording analysis, natural language search, the Clio Library, first pass drafts and Clio Docket court alerts, and it can connect to Clio Manage Clio Work pricing ↗. It has a free trial and live support 24 hours a day, five days a week Clio Work pricing ↗.
The frustration is pricing. Apart from the $49 starting point, Clio does not show plan prices on its pricing page, and Clio Work is priced per user to match your firm's size without published amounts Clio pricing ↗ Clio Work pricing ↗. Get a written quote for the plan that actually includes the AI you want before you migrate.
Why we like it
- Large, established platform with many integrations
- AI included from the Core plan
- Clio Work adds research, review and drafting
- Free trial and 24/5 live support
Flaws but not dealbreakers
- Most plan prices are not published
- No AI on the Starter plan
- Clio Work is priced separately
Spellbook
Best for transactional lawyers who live in Microsoft Word and review contracts all day.
Spellbook works inside Word through an add in. It redlines contracts and flags risks, drafts from scratch or from your saved clauses, compares terms against market standards and lets you save playbooks for how documents should be reviewed Spellbook pricing ↗. A newer agent called Associate handles matters that span several documents, with the lawyer overseeing each step Spellbook pricing ↗.
There is a 7 day free trial Spellbook pricing ↗. Prices are not published and depend on the number of people on the license, so you will need a quote Spellbook pricing ↗. Spellbook says it is SOC 2 Type II compliant and has zero data retention agreements, so customer data is not used for training Spellbook pricing ↗.
Why we like it
- Works where contract lawyers already work, in Word
- Saved playbooks for consistent review
- 7 day free trial
- Zero data retention agreements
Flaws but not dealbreakers
- No published prices
- Focused on contracts, not litigation or research
Compare them
| Tool | Starting price | Free trial | Legal research | Drafting | Practice management | Best for |
|---|---|---|---|---|---|---|
| CoCounsel LegalOur pick | Not published | Demo only | Yes, Westlaw and Practical Law | Yes | No; connects to Smokeball | Grounded research and drafting |
| MyCaseBudget pick | $100/user/mo yearly (Pro, with AI) | 10 days, no card | No | Yes, writing assistant | Yes | AI inside practice management |
| ClioUpgrade pick | From $49/user/mo; AI from Core | Yes, length not stated | Yes, with Clio Work | Yes, with Clio Work | Yes | One platform for a growing firm |
| SpellbookAlso great | Not published | 7 days | No | Yes, contracts in Word | No | Contract review in Word |
| Briefpoint | $150/attorney/mo ($1,800/yr) | Not stated | No | Yes, discovery | No | Discovery for litigators |
| Paxton AI | $499/user/mo or $2,999/yr | 7 days | Yes, 50 states | Yes | No | Solo research and drafting |
Prices and features from each vendor’s site, checked Oct 9, 2026. Prices change often.
Who this is for
This guide is for solo lawyers and firms with roughly two to twenty attorneys. You do not have a knowledge management team or an innovation partner, and you probably cannot spend months piloting software. You want to know which AI tools are worth paying for, which are safe to put client information into, and how to avoid becoming the next lawyer in the news for citing a case that does not exist.
There are three kinds of AI tools worth knowing about. Research and drafting assistants, like CoCounsel Legal and Lexis+ AI, answer legal questions and draft documents using a legal database. Practice management systems, like MyCase and Clio, add AI to the software you already use for matters, billing and documents. Task specific tools, like Spellbook for contracts or Briefpoint for discovery, do one job very well.
If you only draft the occasional letter, a general chatbot with a strict review habit may be enough. But for research you will cite, use a tool tied to real legal sources, and read the sources.
Why you should trust us
We read each vendor's product, pricing and security pages and checked every price on October 9, 2026. We also read the American Bar Association's first formal ethics opinion on generative AI ABA Opinion 512 ↗, a Stanford study that measured how often legal AI tools give wrong answers Stanford HAI study ↗, and a public database that tracks court decisions involving AI hallucinations AI hallucination cases ↗. Every fact in this guide links to its source.
We have not yet tested these tools hands on. Hands on testing is in progress, and we will update this guide with results, including citation accuracy on real research questions. We are not lawyers, and this guide is not legal or ethics advice. No vendor paid for placement, and our picks were chosen on merit.
How we picked
We started with the legal AI tools small firms ask about most, including research platforms, practice management systems with AI and single task tools. We set aside products sold mainly to large firms and corporate legal departments. We then weighed each tool on the risks that matter most in law: wrong answers, confidentiality and cost.
Price transparency was a real problem. Several of the strongest products, including CoCounsel Legal, Lexis+ AI, Clio Work and Spellbook, do not publish prices CoCounsel Legal ↗ Lexis Protégé ↗ Clio Work pricing ↗ Spellbook pricing ↗. We still included the best of them, and we say clearly where you will need a quote.
- Answers grounded in real legal sources with citations you can check
- Clear statements that client data is not used to train AI models
- Security certifications such as SOC 2
- Works inside tools lawyers already use, such as Word and Outlook
- Published prices or a free trial, where available
- Built for solo and small firms, not only large firms
What legal AI can and can't do today
It can save hours on first drafts, summaries and document review. Tools like CoCounsel Legal can review thousands of documents against a list of questions and trace each answer to its source CoCounsel Legal ↗. Briefpoint can generate discovery requests and responses with objections for all 50 states and 98 federal district courts Briefpoint pricing ↗. Spellbook can redline a contract against your playbook inside Word Spellbook pricing ↗.
It cannot be trusted without review. In a Stanford study, Lexis+ AI and Ask Practical Law AI gave incorrect information more than 17 percent of the time, and Westlaw AI-Assisted Research more than 34 percent Stanford HAI study ↗. General purpose chatbots did worse in an earlier study, hallucinating 58 to 82 percent of the time on legal questions Stanford HAI study ↗. A public database now lists 2,180 court decisions worldwide that deal with AI hallucinations such as fake citations AI hallucination cases ↗.
The practical rule is simple: treat AI output like a draft from a new associate. Use it to get started faster, then check every citation, quote and fact yourself before anything leaves the office.
Before you sign up
The ABA's Formal Opinion 512, issued in July 2024, says lawyers using generative AI must consider their duties of competence, confidentiality, client communication and reasonable fees ABA Opinion 512 ↗. Lawyers should understand the benefits and risks of the tools they use, and protect client information unless the client gives informed consent ABA Opinion 512 ↗. On billing, the opinion says you may charge for time spent entering information and reviewing output, but in most cases not for time spent learning the tool ABA Opinion 512 ↗. Check your own state bar's guidance too.
Ask every vendor in writing whether your data is used to train models, how long it is kept and who can see it. Several of our picks make clear statements: CoCounsel Legal says client data is not used for training CoCounsel Legal ↗, Spellbook has zero data retention agreements Spellbook pricing ↗, and Clio is SOC 2 Type II certified Clio features ↗.
- Read ABA Formal Opinion 512 and your state bar's AI guidance
- Get written answers on data training, retention and access
- Check every citation and quote before filing or sending
- Decide whether your engagement letter should mention AI use
- Adjust billing so clients do not pay for your learning time
- Start with a trial on a closed matter before using live client files
What to look forward to
Legal AI is moving from answering single questions to running multi step tasks. CoCounsel Legal now builds an inspectable plan for a matter before it researches and drafts CoCounsel Legal ↗, and Spellbook's Associate agent works across several documents with lawyer oversight Spellbook pricing ↗. Research tools are also moving into everyday apps: CoCounsel works in Word, Outlook and Teams and connects to Claude CoCounsel Legal ↗, and LexisNexis's Protégé works across Microsoft 365 Lexis Protégé ↗.
We hope more vendors publish prices for small firms. We will update this guide as prices appear, as accuracy studies are repeated on newer tools and as our hands on testing finishes.
The competition
Lexis+ AI with ProtégéPrice not published; customized
Lexis+ AI with Protégé drafts documents, summarizes results, checks sources with Shepard's and works across Microsoft 365, and LexisNexis offers a trial request form Lexis Protégé ↗. It is a strong alternative to CoCounsel Legal, but prices are customized and not published, and the same Stanford study found Lexis+ AI gave incorrect information more than 17 percent of the time Lexis Protégé ↗ Stanford HAI study ↗.
Paxton AIStarts at $2,999/user/year ($499 monthly)
Paxton AI publishes its price, which is rare: $499 per user a month or $2,999 a year, with a 7 day free trial Paxton pricing ↗. It drafts documents, analyzes files and covers federal and all 50 states' law, and lists SOC 2, ISO 27001 and HIPAA Paxton pricing ↗. It is a reasonable option for a solo lawyer who wants research without a Westlaw contract, but monthly billing is expensive Paxton pricing ↗.
Briefpoint$1,800/year per attorney ($150/month)
Briefpoint is excellent at one job: it generates discovery requests and responses, including objections and Bates numbered productions, for $1,800 a year per attorney with no per case fees Briefpoint pricing ↗. It is a great add on for litigators but does not do research or general drafting, and no free trial is listed Briefpoint pricing ↗.
HarveyPrice not published; demo required
Harvey says more than 3,000 law firms and in house legal teams use it, including more than 80 AmLaw 100 firms Harvey ↗. Prices are not published, access starts with a demo request, and its closest offering for smaller practices is aimed at mid sized firms, not solos Harvey ↗.
Questions people ask
What is the best AI tool for a small law firm?
For research and drafting, we would start with CoCounsel Legal, which grounds answers in Westlaw and Practical Law with linked citations CoCounsel Legal ↗. For AI inside practice management, MyCase Pro costs $100 per user a month billed yearly and includes an AI writing assistant MyCase pricing ↗.
Is it ethical for lawyers to use AI?
Yes, with care. ABA Formal Opinion 512 says lawyers using generative AI must consider competence, confidentiality, client communication and reasonable fees, and protect client information unless the client gives informed consent ABA Opinion 512 ↗. Check your state bar's guidance as well.
Do legal AI tools make up cases?
They can. A Stanford study found Lexis+ AI and Ask Practical Law AI gave incorrect information more than 17 percent of the time and Westlaw AI-Assisted Research more than 34 percent Stanford HAI study ↗. One public database lists 2,180 court decisions involving AI hallucinations AI hallucination cases ↗. Always check every citation.
Can I bill clients for time spent using AI?
According to ABA Formal Opinion 512, you may bill for time spent entering information into an AI tool and reviewing its output, but in most cases you cannot bill for time spent learning how to use the tool ABA Opinion 512 ↗.
How much does legal AI cost?
It varies widely and many vendors do not publish prices. MyCase with AI starts at $100 per user a month billed yearly MyCase pricing ↗, Briefpoint costs $1,800 a year per attorney Briefpoint pricing ↗, and Paxton AI is $2,999 a year per user Paxton pricing ↗. CoCounsel Legal, Lexis+ AI, Clio Work and Spellbook require a quote CoCounsel Legal ↗ Lexis Protégé ↗ Clio Work pricing ↗ Spellbook pricing ↗.
Is there a free trial of AI for lawyers?
Yes. MyCase offers a 10 day trial with no credit card MyCase pricing ↗, Spellbook and Paxton AI offer 7 day trials Spellbook pricing ↗ Paxton pricing ↗, Clio Work has a free trial Clio Work pricing ↗, and LexisNexis has a trial request form Lexis Protégé ↗.
Where this comes from
Checked Oct 9, 2026. Vendor pages describe their own products; independent sources add outside views.
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