H
HSpellbook vs Westlaw Precision
Pricing, features, platforms and who each one suits — side by side.
S
Choose Spellbook if…
- you want to trial it before paying
- you're in its core audience: transactional lawyers, in-house legal teams
W
Choose Westlaw Precision if…
- you're in its core audience: law firm attorneys, corporate counsel
Side by side
Feature Spellbook Westlaw Precision
Pricing modelContact for pricingContact for pricing
Starting price——
Free plan
Free trial
API
Open source
Trains AI on your contentNo—
Data retentionLLM providers don't persist data; Google data kept while library exists—
Security and complianceSOC 2 Type II, HIPAA, GDPR, CCPA—
Word add-in—
AI redlining—
Contract repository—
PlatformsWebWeb
CategoryLegalLegal
Rank in its category#5 of 10#3 of 10
CompanyDialog Enterprises Inc.Thomson Reuters
Based in——
Founded——
Part of——
Key features
S Spellbook
- Contract redlining with tracked suggestions inside Microsoft Word
- Flags risky and non-standard contract terms
- Drafts clauses and agreements from AI or saved precedents
- Playbooks that apply team standards to every review
- Benchmarks comparing contract terms to industry standards
- Associate agent for multi-document legal matters
- Contract intake from email and Slack (ACM)
- Searchable contract repository with renewal monitoring (ACM)
W Westlaw Precision
- AI-assisted legal research on verified Westlaw content
- Agentic AI for moving from research to strategy (Westlaw Advantage)
- Precise, verified answers to complex research questions
- Bundles with CoCounsel for analysis and drafting
- Integration with Practical Law guides, templates and checklists
- Practice-area coverage including litigation, M&A and employment law
Plans and prices
From each vendor's site. Prices change — confirm before buying.
Spellbook
Law FirmsCustom
In-House TeamsCustom
Westlaw Precision
Contact for pricing. Plan details aren't published.
Strengths and limitations
Spellbook
- 7-day free trial, with extended trials possible for larger organizations
- Works inside Microsoft Word
- Zero data retention with LLM providers; SOC 2 Type II, GDPR and HIPAA listed
- Free access for academic institutions
- No public prices; you need to book a demo for a quote
- ACM end-to-end contract management is still in early access
Westlaw Precision
- Built on Westlaw content that Thomson Reuters says draws on 150 years of expertise
- Several tiers, from Westlaw Edge to Westlaw Advantage
- Can be bundled with CoCounsel and Practical Law
- No public pricing; plans go through sales
- The page does not describe Westlaw Precision by name
- No free trial listed
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REvidence analysis, legal transcription and drafting for legal and investigative teams
Free, from $25.49/mo
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Free, from $25.49/mo
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Evidence analysis, legal transcription and drafting for legal and investigative teams
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Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy