Spellbook vs Harvey: Which Legal AI in 2026?
Quick answer: These two are compared far more often than they compete. Spellbook is a Microsoft Word add-in for contract drafting and review, reported at roughly $99 to $199 per user a month. Harvey is a firm-wide platform across multiple practice areas, reported from around $50,000 a year and running to $290,000. If you are an in-house team or a small firm doing contract work, Spellbook is almost certainly the question you are actually asking. Harvey is a partnership decision, not a software purchase.
At a glance
| Spellbook | Harvey | |
|---|---|---|
| Reported price | ~$99 to $199 per user/mo, ~$350 on enterprise with a 10-seat minimum | ~$50,000 to $290,000 a year |
| Price transparency | No published price; reported figures available | No published price; reported figures available |
| Bought by | In-house teams and small to mid-sized firms | Large law firms, at partnership level |
| Where it runs | Inside Microsoft Word | Its own platform, deployed firm-wide |
| Core job | Contract drafting, review and redlining | Research, drafting and analysis across practice areas |
| Scope | Contracts only | Litigation, corporate, regulatory and more |
| Time to value | Same day; it is an add-in | Weeks to months; it is a deployment |
| Trial | Seven days | No public trial; sales-led evaluation |
| Licensed case law | No | No; authority-heavy research still routes to Lexis or Westlaw |
Which one, by buyer
| If you are | Choose | Because |
|---|---|---|
| An in-house legal team of one to five | Spellbook | Priced per seat, installs into the tool they already use, and does the contract work that fills the week. |
| A small or mid-sized law firm | Spellbook | Harvey's entry price exceeds most small firms' entire software budget. |
| A large firm buying across practice areas | Harvey | Built for firm-wide deployment and knowledge management, which a Word add-in cannot do. |
| A commercial team without lawyers | Neither | Both assume a qualified reader who can judge a suggestion. Look at tools built for non-lawyers instead. |
| Anyone whose main need is case law research | Neither | Neither licenses primary law. Lexis+ AI or Westlaw remain the answer for authority. |
Price is the whole comparison
Spellbook is reported at approximately $99 to $199 per user a month, rising to around $350 per user on enterprise plans with a ten-seat minimum. Harvey is reported at approximately $50,000 to $290,000 a year, priced on firm size and practice-area coverage.
At a five-person team, Spellbook is roughly $6,000 to $12,000 a year. Harvey's reported floor is four to eight times that, for a product doing a substantially different job. For most teams the comparison ends there, and the remaining sections matter only if the budget genuinely stretches to both.
Neither publishes a price. Both figures above are reported from marketplace and procurement data and should be treated as directional rather than as quotes.
They are not solving the same problem
Spellbook does contracts. Drafting, review, redlining, clause suggestion, all inside Microsoft Word. That narrowness is the product: it meets lawyers in the file they are already editing and does not ask anyone to adopt a platform.
Harvey spans research, drafting and analysis across litigation, corporate and regulatory work. It is sold as firm infrastructure, with custom workflows per practice group and knowledge management across the firm.
So the honest framing is not which is better. It is whether you are buying a tool for a job or a system for a firm.
Neither replaces Lexis or Westlaw
This surprises people evaluating Harvey in particular. Neither product licenses the proprietary case law corpora, and neither has an equivalent of Shepard's or KeyCite citation treatment.
Firms running Harvey generally keep their Lexis or Westlaw subscription, which means the cost is additive rather than substitutive. That is worth establishing early in an evaluation, because it changes the business case considerably.
One installs, the other is a project
Spellbook is an add-in. A lawyer can be using it the same afternoon, and a seven-day trial means the evaluation costs nothing but time.
Harvey is a deployment measured in weeks to months, with configuration per practice group and no public trial. The evaluation itself consumes partner time before any decision is made.
Teams that treat these as comparable purchases and run one evaluation process for both usually discover this mismatch late.
Frequently asked questions
Is Spellbook or Harvey better?
They serve different buyers. Spellbook suits in-house teams and small to mid-sized firms doing contract work, at a reported $99 to $199 per user a month. Harvey suits large firms deploying across practice areas, reported from around $50,000 a year. For most people asking, Spellbook is the relevant product.
How much does Harvey cost compared to Spellbook?
Harvey is reported at approximately $50,000 to $290,000 a year. Spellbook is reported at $99 to $199 per user a month, so roughly $6,000 to $12,000 annually for a five-person team. Neither vendor publishes a price.
Does Harvey replace Westlaw or Lexis?
No. Harvey does not license the proprietary case law corpora and has no equivalent of KeyCite or Shepard's citation treatment. Firms using it generally keep their existing research subscription, which makes the cost additive.
Can a small firm use Harvey?
The reported entry price of around $50,000 a year exceeds the entire software budget of most small firms. Spellbook, and other per-seat contract tools, are the realistic options at that size.
Does Spellbook do legal research?
No. It is a contract drafting and review tool that runs inside Microsoft Word. Research means a separate subscription, and for authority that means Lexis or Westlaw.
Which is easier to get started with?
Spellbook, by a wide margin. It is a Word add-in with a seven-day trial and can be in use the same day. Harvey is a firm-wide deployment with configuration per practice group and no public trial.