What is Spellbook?
Spellbook is an AI platform for reviewing and drafting contracts. It runs on large language models such as GPT-5 and Claude and works as an add-in inside Microsoft Word, so lawyers can stay in their existing document workflow.
In practice, the tool can redline contracts and flag risky terms, draft new clauses or full agreements from scratch or from saved libraries, and compare contracts against industry standards. Teams can encode their own standards as playbooks that are applied on every review. The company also offers Associate, a multi-document agent for longer legal matters, and is developing Autonomous Contract Management, which covers intake, drafting, review and repository tracking of signed contracts.
Key features
- Contract redlining and risk detection in Microsoft Word
- Drafting new clauses and full agreements from scratch or saved libraries
- Comparison of contracts against industry standards
- Playbooks that enforce a team's legal standards on each review
- Quick Q&A over contract content
- Multi-document workflows via the Associate agent
Who is it for
- Transactional lawyers at law firms
- In-house legal teams
- Legal operations managers
Pros and cons
- Works directly inside Microsoft Word, so no change to existing workflow
- Zero data retention agreements with LLM providers; SOC 2 Type II, GDPR and CCPA compliance
- Pricing is custom and depends on team size; no public price list
- Aimed at legal professionals, so limited use outside contract work
Spellbook pricing
The vendor does not publish prices in a readable form (often pricing is shown only after signing in).
Is Spellbook free?
There is a free trial. 7-day free trial for lawyers and legal teams; extended trials may be available for larger organizations.
Featured in
Spellbook alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Lexis+ with Protégé | not listed | trial | Legal |
 Harvey | not listed | ? | Legal |
 Legora | not listed | ? | Legal |
 Rev | not listed | trial | Legal |
 CoCounsel | not listed | ? | Legal |
 fynk | not listed | trial | Legal |
All alternatives to Spellbook →
Comparisons
FAQ
What is Spellbook used for?
AI contract review and drafting inside Microsoft Word, for transactional lawyers and in-house legal teams.
Is Spellbook free?
There is a free trial. 7-day free trial for lawyers and legal teams; extended trials may be available for larger organizations.
How much does Spellbook cost?
The vendor does not publish prices publicly or requires sign-in.
What are the best Spellbook alternatives?
Closest alternatives: Lexis+ with Protégé, Harvey, Legora, Rev, CoCounsel.
Data checked October 12, 2026 on the vendor website (spellbook.com).