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Spellbook

Claim

Spellbook is an AI contract suite for transactional lawyers that reviews, redlines and drafts agreements inside Microsoft Word.

The six
  • API accessNot stated
  • Free tierPartly
  • MCP serverNot stated
  • Own API keyNot stated
  • Open sourceNot stated
  • Self-hostedNo
Price
Price on request
Best for
In-house legal teams and transactional law firms that negotiate contracts in Word

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The facts, with their sources

What it does

Done-for-you service
PartlyYou run the software, but the vendor layers human services on top: team training, online support and a build service that turns your standards into playbooks for you.Playbook Build Servicespellbook.com/pricing

How much it does unattended

Runs autonomously
PartlyACM runs intake, routing and a first-pass review before a lawyer sits down, but the vendor is explicit that judgment, approvals and final decisions stay with the lawyer.Spellbook helps automate the repetitive work around contracts, while lawyers stay in control of legal judgment, approvals, and final decisions.spellbook.com/acm-access
Agent permissions
PartlyIt drafts redlines and comments across a whole document but applies nothing on its own: the lawyer approves each suggestion, with bulk approve for speed.Spellbook reviews entire documents instantly and drafts comments. You choose which are approved and applied.spellbook.com/features/review

Which models it runs on

Claude
YesAnthropic models are used under a negotiated zero-data-retention agreement, and the vendor's own evaluations run Claude inside Spellbook Associate.Spellbook has negotiated agreements with both OpenAI and Anthropic for zero data retention (ZDR).spellbook.com/security
GPT
YesOpenAI's GPT-5 shipped in Associate for contract revision and was being rolled out across contract review when the vendor announced it.GPT-5 is live now in Spellbook Associate for contract revision, and is being gradually rolled out in our contract review functionality.spellbook.com/blog/gpt-5-live-in-spellb…

Whose machine it runs on

Self-hosted
NoSpellbook is a hosted service running on the vendor's AWS tenancy, and no page offers a self-hosted or bring-your-own-cloud deployment.Spellbook uses Amazon Web Services (AWS) as the primary cloud provider.spellbook.com/security

What it costs to run

How it meters
YesBilling is per seat: the licence is priced on how many team members it covers, with no usage or credit meter published.Our pricing is structured around the number of team members on your license.spellbook.com/pricing
Free tier
PartlyYou can start a seven-day trial without a call, but there is no standing free plan; longer trials are sales-gated and academic use is free by application.Yes. Lawyers and legal teams can try Spellbook free for 7 days to test features, workflows, and see how our AI tooling impacts their work.spellbook.com/pricing

Buying it for a team

A company can buy it
YesSold as a team licence to law firms and in-house departments of any size, with dedicated support once a team passes ten people.Spellbook supports teams of all sizes — from individuals to global legal departments.spellbook.com/pricing
Seat model
YesPriced per team member on the licence; no seat floor or ceiling is published, and the figure itself only comes from a demo.Yes. Pricing is determined by the number of team members on a license.spellbook.com/pricing
Admin controls
PartlyPlaybooks let a team impose its own review standards on every contract, and authentication controls sit in the customer's Entra tenant, but no admin policy console is documented.Turn your team's standards into automated checklists that are enforced on every review.spellbook.com
Audit log
PartlyThe vendor claims audit controls alongside SSO and encryption but publishes no detail on what administrative actions are recorded or how logs are reached.Spellbook is built for legal-grade confidentiality and has the SSO, MFA, encryption, and audit controls your security team will ask about.spellbook.com
Single sign-on
YesSSO works through Microsoft accounts because the product is a Word add-in, so enforcement including MFA happens in the customer's Entra tenant; SAML or OIDC is not named.Spellbook is provided as a Microsoft Word add-in and uses Microsoft accounts for SSO. This allows companies to enforce authentication controls, such…spellbook.com/security

What happens to your code

Opt out of training
YesZero-data-retention agreements with both model providers mean customer documents are never persisted or trained on; it is the default, not a setting to find.This means customer data included in requests and responses with these LLMs is not persisted and exists only in memory in order to process a request.spellbook.com/security
Data residency
PartlyStorage and processing happen in Canada and the United States only, so EU or UK-resident data is not offered despite GDPR compliance and an EU representative.Spellbook uses cloud providers with data centers in Canada and US for storing and processing customer data.spellbook.com/security
Certifications
YesSOC 2 Type II, HIPAA with a signable BAA, GDPR and an independent CMS Law opinion on EU AI Act classification; ISO 27001 is not claimed.We are compliant with major international regulations such as SOC 2 (Type II), GDPR and CCPA.spellbook.com/pricing

Plans and pricing

Price and terms

Free to start
PartlyPartlySeven-day free trial, self-serve start from the site
The terms in full

extended trials for larger organizations only via a demo. No standing free plan. Free access is offered to academic institutions on application.

Checked .

Works with

  • Claude
  • GPT

Screenshots

  • Pricing page of Spellbook
    Pricing page, spellbook.com, captured

Filed under

Legal agents

Sources and updates

Updates1

  • Capabilities · Free tier · Price · Terms

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