Alternatives
A Spellbook alternative that drafts in Word and knows the matter.
Spellbook is a capable Word add-in for contract drafting and review, popular with transactional lawyers. ModulawAI also lives in Word, with redlines as native track changes and findings as comments, and drafts from your firm’s own precedent library. Then it goes further: grounded research in eight jurisdictions, grid review across an entire contract set, and the matter, time, billing and client portal the contract belongs to.
Side by side
A Word add-in versus a Word add-in with a platform behind it.
| Capability | ModulawAI | Contract drafting add-ins |
|---|---|---|
| Drafting and redlining in Word | Yes, native track changes and comments | Yes, the core product |
| Drafting from the firm’s precedents | Yes, indexed precedent library per workspace | Varies; often playbooks and clause banks |
| Legal research with citations | Yes, retrieved primary law in eight jurisdictions | Limited or not included |
| Review across a whole contract set | Tabular review: cells cite the clause, export to Excel | Typically one document at a time |
| Matter and case management | Full, with audit trail | Not included |
| Time capture and billing | Multi-currency invoicing, retainers, trust reconciliation | Not included |
| Client portal and CRM | Yes | Not included |
| Jurisdictions with primary law | US, UK, Canada, EU, Nigeria, Ghana, Kenya, South Africa | Not applicable to a drafting tool |
Based on publicly available information at the time of writing. Vendor capabilities change; verify current features and pricing with each vendor before deciding.
Deciding
Which one fits.
Stay with a drafting add-in if
Contract drafting is the only job you want AI for.
A transactional team that is happy with its practice management, does its research elsewhere and only wants faster first drafts and redlines has a narrow need, and a single-purpose add-in meets it. The trade-off is that the drafting tool does not know which matter the contract belongs to, cannot check the law behind a clause, and cannot answer a question across the last hundred agreements the firm signed.
Choose ModulawAI if
You want the draft, the research and the file in one place.
In ModulawAI the Word add-in is a window onto the matter. The draft starts from the firm’s own precedent, the clause can be checked against the governing law with a citation, the redline is saved as a version in the case file, the time is captured, and the executed agreement joins a document set the firm can query later. See the Word add-in and legal drafting software.
Portfolio work
One contract at a time is the wrong unit for due diligence.
Due diligence, lease portfolios and regulatory change all ask the same question of many documents. Tabular review answers it as a grid, every cell citing its clause, exported to Excel with the citations intact. See AI contract review.
Cost and capability
What a drafting add-in costs once you add everything around it.
Spellbook is a serious product and the category leader for AI drafting inside Microsoft Word. It runs in Word for Windows, Mac and the web, enforces clause playbooks, and has extended into multi-document work with Spellbook Associate, an agent for transactional sets such as data room materials, financing documents and disclosure schedules, which runs in the browser and is bundled with Suite licences. If contract drafting is the only job you want AI for, that is a coherent purchase.
Pricing is quoted rather than published, which makes comparison harder than it should be. Third-party reviews report entry-level pricing from roughly $89 per user per month for the Associate tier, rising through Pro and Enterprise, with some sources citing figures between $199 and $350 per user per month at the top end, billed annually and scaling with seat count. Those are secondary reports rather than vendor-confirmed rates, so treat them as a range to verify rather than a quote.
The stack arithmetic
A drafting add-in does not replace anything a firm already pays for. It sits alongside the practice management seat, the research subscription and whatever handles documents. The honest comparison is not add-in against platform, it is the total of everything a fee earner needs in order to do the work end to end. Write out the four line items and compare that number against a platform that includes research, drafting, review and practice management in one. Sometimes the add-in still wins, particularly if the rest of the stack is settled and recently renewed. Frequently it does not.
There is also a capability boundary worth naming. A drafting tool that reasons about a contract in isolation cannot tell you whether the clause is enforceable under the governing law, because it holds no primary law. It cannot tell you what the firm agreed with a comparable counterparty last year unless that precedent is loaded into it. And it reviews one document at a time, which is the wrong unit for due diligence across a target’s contract portfolio. Those three gaps are why ModulawAI puts research, the precedent library and grid review behind the same Word add-in.
A fourth gap: a drafting tool produces text, never a tool
Every product in this category, from drafting add-ins with playbooks to the enterprise platforms, produces the same class of output. Harvey’s Agent Builder and Legora’s Workflows are the most advanced examples, chaining drafting, review, classification and research into multi-step runs, and Harvey reported more than 25,000 customer built workflows by February 2026 (harvey.ai). They are pipelines. Documents go in, and documents, tables and answers come out.
None of them produces a running application. ModulawAI includes Canvas, an interactive artifact builder that turns a plain description into working software. Describe an earn-out calculator to model the clause you are negotiating, a term sheet comparison tool, a client intake form, a renewal and notice-period tracker or a small internal dashboard, and you get a real page you can open and use, usually in a few minutes, without writing code. The nearest equivalents are general assistants rather than legal products: Claude Artifacts and ChatGPT Canvas do this well, and neither knows the matter, the precedent library or the governing law.
The limits are real and worth stating. Canvas apps run in a sealed sandbox on an opaque origin with no network access, a deliberate choice that stops the app reaching the matter file, firm data or any outside service, so its inputs are typed in. They are internal tools today, and publishing one to a public address for a counterparty or client to use is on the roadmap rather than in the product.
Sources
- Spellbook pricing page, which quotes rather than publishes rates.
- Lawyerist, Spellbook review, and other third-party reviews reporting per-seat ranges.
- Spellbook product documentation on Spellbook Associate and Word platform support.
FAQ
Questions, addressed.
What is the best Spellbook alternative?
For a firm that wants AI drafting in Word and nothing else, several add-ins compete on similar terms. For a firm that wants drafting connected to research, the matter, billing and a reviewable document set, ModulawAI is the alternative: the same Word-native redlining, plus the platform behind it, in eight jurisdictions.
Does ModulawAI work inside Microsoft Word?
Yes. The add-in produces redlines as native track changes and findings as comments, inserts citations formatted to the jurisdiction, and drafts from the firm’s precedent library.
Can we keep our clause playbooks?
Yes. Upload playbooks, standard positions and precedents to the workspace library and the AI drafts and reviews against them.
Does it check the law behind a clause?
Yes. Research runs from the same assistant, grounded in retrieved statutes and judgments with linked citations, so a clause can be tested against the governing law without leaving the document.
How is it priced?
Per seat with usage-based credits, covering drafting, research, review and practice management together. See pricing.
Redline a live agreement with it.
Book a demo and keep the track changes on. See all comparisons.