L
LHarvey AI vs Spellbook
Pricing, features, platforms and who each one suits — side by side.
H
Choose Harvey AI if…
- you're in its core audience: large law firms, mid-size law firms
S
Choose Spellbook if…
- you want to trial it before paying
- you're in its core audience: transactional lawyers, in-house legal teams
Side by side
Feature Harvey AI Spellbook
Pricing modelContact for pricingContact for pricing
Starting price——
Free plan
Free trial
API
Open source
Trains AI on your contentNoNo
Data retentionCustomer sets retention policies; deleted per Customer AgreementLLM providers don't persist data; Google data kept while library exists
Security and complianceSOC 2 Type II, CCPA, GDPR, ISO 27001, ISO 27701, ISO 42001SOC 2 Type II, HIPAA, GDPR, CCPA
Word add-in—
AI redlining—
Case law research—
Contract repository—
Regulatory monitoring—
PlatformsWebWeb
CategoryLegalLegal
CompanyHarvey AI CorporationDialog Enterprises Inc.
Based inUnited States—
Founded——
Part of——
Key features
H Harvey AI
- Legal agents that run complex tasks end to end
- Vault for secure storage and bulk document analysis
- Legal, regulatory and tax research across domains
- Contract Intelligence for reviews and negotiations
- Shared Spaces with ethical walls for cross-organization work
- Horizon Scanning for tracking regulatory changes
- Connector Library with custom MCP support
- Command Center usage analytics and benchmarking
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)
Plans and prices
From each vendor's site. Prices change — confirm before buying.
Harvey AI
Contact for pricing. Plan details aren't published.
Spellbook
Law FirmsCustom
In-House TeamsCustom
Strengths and limitations
Harvey AI
- Covers research, documents, contracts and agents on one platform
- Enterprise controls including SAML SSO, audit logs and IP allow-listing
- Lists SOC 2 Type II, ISO 27001, ISO 42001 and GDPR compliance
- Regional options for the US, EU and AU
- No public pricing; access is through a demo request
- No free plan or trial listed
- No mobile apps listed
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
More comparisons
Other options to consider
LL
Contact
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II
Contact
L
LL
Contact
R
REvidence analysis, legal transcription and drafting for legal and investigative teams
Free, from $25.49/mo
R
Free, from $25.49/mo
R
Evidence analysis, legal transcription and drafting for legal and investigative teams
LegalFree planAPI
W
WW
Contact
C
CC
Contact
Built from each vendor's public website; we haven't tested them hands-on. Editorial policy