Spellbookvs
Ironclad
Ironclad: Contract lifecycle management covering execution and obligations rather than drafting assistance in Word
Spellbook
Contract drafting and review assistant inside Microsoft Word
As of 31 August 2026, Spellbook's pricing is not published; the vendor quotes on request. A Word add-in that drafts and reviews commercial contracts using OpenAI and Anthropic models. Softwr lists it under Legal. Spellbook is made by Spellbook (Dialog Enterprises), available on Windows, macOS, Web.
Overview
What Spellbook does
Spellbook is a Microsoft Word add-in for transactional lawyers, also available for Google Docs. It suggests clause language while drafting, flags terms that are unusual or missing in an inbound agreement, compares draft terms against market standards, and answers plain language questions about the open document. It is built by Dialog Enterprises, a Canadian company formerly called Rally, and is aimed explicitly at commercial and transactional work rather than litigation. Living inside Word rather than in a separate platform is the real design decision. Transactional drafting happens in Word, and legal AI tools mostly fail on workflow rather than capability, because a lawyer under deadline will not export a document into another system. Unusually for this market, Spellbook names the models it runs on rather than referring vaguely to artificial intelligence: it cites OpenAI GPT-5 and Anthropic Claude models, and states it has negotiated zero data retention agreements with both providers. That is a materially better disclosure position than most competitors, and it gives a firm something concrete to assess against client confidentiality terms and outside counsel guidelines, which frequently restrict sending client material to external processors. On output quality there is nothing to assess. Spellbook publishes no accuracy percentage, no precision or recall figure and no benchmark of its own product. The often-quoted claim that it is ten times more accurate came from a funding announcement and was framed as product intent, with no methodology, dataset or baseline behind it. It did not take part in the Vals Legal AI Report, the main independent lawyer-baselined benchmark, and no third-party evaluation of it has been published. Pricing is not published either: it is per seat, but the rate is behind a demo request.
What people use it for
- Transactional lawyers drafting commercial agreements in Word
- In-house teams reviewing inbound contracts without a contract lifecycle system
- Lawyers who want a first pass at redlines before applying their own judgement
- Firms that need to know which model providers process their documents before adopting an AI tool
Related searches
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Spellbook.
- It publishes no accuracy figure for its own output and no independent evaluation exists, so a firm must run its own assessment on real agreements.
- The ten times more accurate claim originated in a funding announcement as a statement of intent and has no methodology, dataset or baseline behind it.
- Contract text is processed by third-party model providers, so despite the zero data retention agreements this still needs checking against client confidentiality terms and outside counsel guidelines.
- Pricing is not published, so seat cost cannot be compared against competitors without booking a demo.
- It is a drafting assistant rather than a contract lifecycle system, so it does nothing for execution, obligation tracking or renewals.
Cross-shopped
What people choose instead of Spellbook
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.
- SpellbookvsLuminance
Luminance: Contract analysis across large existing document sets rather than help while drafting a single agreement
- SpellbookvsClio
Clio: Practice management with document automation, for firms whose problem is matter workflow rather than drafting language
Pricing
What Spellbook costs
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Spellbook
On request
- Priced by the number of seats on the licence
- Rates quoted after a demo, not published
- Seven day free trial, free access for academic use
Capabilities
Features
Word add-in drafting
Clause suggestions and redlines inside the document being drafted
Contract review
Flags unusual or missing provisions in an inbound agreement
Benchmarks against market standards
Compares draft terms with common market positions
Question answering
Plain language questions answered about the open contract
Named model providers
Runs on OpenAI and Anthropic models under zero data retention agreements
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
Is Spellbook's accuracy independently verified?
No. It publishes no accuracy figure of its own, and no third-party evaluation has been published. It did not participate in the Vals Legal AI Report, the main independent lawyer-baselined benchmark. Evaluate it on your own agreements during the trial.
Which models does it use and where does our text go?
Spellbook names OpenAI GPT-5 and Anthropic Claude models, and states it has zero data retention agreements with both providers. Confirm the current terms and subprocessor list against your client confidentiality obligations before use.
What does it cost?
Pricing is per seat but is not published. The vendor quotes it after a demo, so the seat rate cannot be compared with competitors in advance.
Keep looking
Where to go from Spellbook
- Spellbook alternativesEvery product people weigh against it
- Spellbook pricingPlans, floors and what the tiers exclude
- Spellbook badgesWhich rules it meets, and the figure behind each
- All Legal softwareThe full category
- Best Legal softwareThe shortlist, and how it was cut
Best Legal software for
Compare Spellbook with
- Luminance
- Harvey
- LexisNexis
- Westlaw
- Ironclad
- Litera
- Clio
- Everlaw
- CosmoLex
- Filevine
- DISCO
- iManage
- Intapp
- Litify
- Rocket Matter
- Secure Privacy
- Tabs3
- Litera
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Softwr does not host reviews and shows no star rating for Spellbook, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
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