R
REvidence analysis, legal transcription and drafting for legal and investigative teams
Free, from $25.49/mo
Clio Duo vs Spellbook
Pricing, features, platforms and who each one suits — side by side.
C
Choose Clio Duo if…
- you're in its core audience: law firms, solo lawyers
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 Clio Duo Spellbook
Pricing modelContact for pricingContact for pricing
Starting price——
Free plan
Free trial
API
Open source
Trains AI on your content—No
Data retention—LLM providers don't persist data; Google data kept while library exists
Security and compliance—SOC 2 Type II, HIPAA, GDPR, CCPA
Word add-in—
AI redlining—
Contract repository—
PlatformsWebWeb
CategoryLegalLegal
Rank in its category#8 of 10#5 of 10
CompanyClioDialog Enterprises Inc.
Based in——
Founded——
Part of——
Key features
C Clio Duo
- AI assistant inside Clio Manage
- Works with existing Clio firm data
- Included from the Clio Manage Core plan up
- Now branded as Manage AI
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.
Clio Duo
Clio Duo add-onContact sales
Spellbook
Law FirmsCustom
In-House TeamsCustom
Strengths and limitations
Clio Duo
- Built into Clio Manage, so there is no separate tool to adopt
- Clio's pricing pages say AI is included from the Core plan up
- Clio Duo itself has no published price
- Older Clio pages say it is only available in the United States
- Requires a Clio Manage subscription
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
RR
Free, from $25.49/mo
R
Evidence analysis, legal transcription and drafting for legal and investigative teams
LegalFree planAPI
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Contact
W
WW
Contact
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LL
Contact
I
II
Contact
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LL
Contact
Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy