Spellbook
AI copilot for contract drafting and review in Microsoft Word
Spellbook remains the most practical legal AI for Word-native contract work. Its contract-specific features like Missing Clause Review and Spicy Mode outshine general AI tools. Custom pricing and demo friction are the main barriers, but accuracy and Word integration make it a must-try for transactional practices.
- Transactional lawyers drafting and reviewing contracts daily in Word
- In-house counsel needing efficient contract review and redlining
- Law firms handling complex multi-document legal matters
- Legal teams wanting to encode standards with Playbooks and Compare to Market
- Litigation-focused lawyers who need case law research
- Users without a professional work email (no Gmail/Yahoo)
- Those who prefer a web-based tool over Word integration
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Skip Spellbook if you need case law research, prefer a web-based tool, lack a professional work email, or are unwilling to book a demo to see pricing.
Pricing is custom per user per month and not listed; requires demo booking.
Spellbook's custom pricing targets law firms and in-house teams, not solos. Without public pricing, it's hard to compare; similar tools like Lexion or Ironclad also use custom quotes. For very small firms, Word-native alternatives like ClauseBuddy might be cheaper.
In short
Spellbook — AI copilot for contract drafting and review in Microsoft Word. Best for Transactional lawyers drafting and reviewing contracts daily in Word, In-house counsel needing efficient contract review and redlining, Law firms handling complex multi-document legal matters. Contact Sales pricing.
What's new in Spellbook
Checked 13 days agoAcross the latest 1 update: 1 news mention.
Viability Score
How likely is Spellbook to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →Key Features
- Missing Clause Review to identify omissions
- Directed Draft for clause generation
- Find Conflicting Terms across documents
- Spicy Mode for aggressive negotiation language
- Proofread for automated proofreading
- Compare to Market for market term benchmarking
- Associate multi-document AI agent
- Playbooks for reusable review instructions
- Holistic document analysis without token limits
- Microsoft Word add-in integration
- Zero Data Retention for privacy
- SOC 2 Type II compliant security
- GPT-5 powered contract review and drafting
- Benchmarks feature for market analysis
- Draft based on user precedents and preferences
About Spellbook
Spellbook is a legal AI copilot that integrates directly into Microsoft Word, built on GPT-5 and tuned specifically for contract work. It is designed for transactional lawyers, in-house counsel, and litigation professionals. Features include Missing Clause Review, Directed Draft, Find Conflicting Terms, Proofread, Spicy Mode for aggressive negotiation, Compare to Market, Associate multi-document AI agent, and Playbooks for reusable review instructions. The tool analyzes entire contracts holistically without token limits, is trained on billions of lines of legal text, and boasts SOC 2 Type II compliance and Zero Data Retention. Trusted by 4,500+ legal teams, it recently raised $50M Series B. Its custom pricing and demo gate limit quick adoption, but for lawyers who live in Word, Spellbook offers the most practical contract-specific AI capabilities compared to general-purpose tools like ChatGPT or Lexis+ AI.
Behind the Verdict
Spellbook nails the core use case: contract review and drafting inside Microsoft Word. For transactional lawyers who spend their day in Word, the integration is seamless and the features like Missing Clause Review and Compare to Market are genuinely useful. The recent $50M Series B signals confidence and resources for continued development. However, the demo-gated custom pricing model creates friction for individual practitioners or small firms who want to just try it. Compared to Lexis+ AI or ChatGPT, Spellbook's contract-specific tuning and Word integration give it a clear edge for contract work, but those general tools offer broader capabilities at fixed prices. Where Spellbook bites: you have to book a demo, provide a work email, and wait for a sales call. The privacy stance (Zero Data Retention, SOC 2 Type II) is a strong selling point for law firms with compliance requirements. In practice, we'd reach for Spellbook when we need deep contract analysis and redlining in Word, but pass if we need case law research or a web-based tool.
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Real-world workflow fit
Concrete scenarios for the personas Spellbook actually fits — and what changes day-one when you adopt it.
Open the contract in Word, run Missing Clause Review to identify missing clauses, use Find Conflicting Terms to highlight inconsistencies, then use Directed Draft to add a clause from a Playbook.
Outcome: Review time cut from 4 hours to 1 hour; fewer missed clauses.
Load contract in Word, use Spicy Mode to generate aggressive redlines, run Compare to Market to benchmark terms, and finalize with Proofread.
Outcome: Stronger negotiating position; faster turnaround.
Use Associate agent to review three NDAs simultaneously, ask questions via Ask feature, and apply standard Playbooks to each.
Outcome: Consistent quality across deals; associate handles bulk work.
Use Cases
- Transactional attorneys drafting and redlining contracts in Word
- In-house teams reviewing incoming contracts against company standards
- Law firms comparing contracts to industry benchmarks with Compare to Market
- Multi-document due diligence using the Associate agent
- Legal teams using Playbooks to enforce standard review criteria across the firm
Models Under the Hood
as of 2026-07-06
Limitations
- Pricing is not publicly disclosed and requires a business email and demo booking.
- Only available as a Microsoft Word add-in and Associate desktop agent—no web app or standalone platform.
- Free trial is only 7 days.
- For large teams, pricing is per-user and likely expensive for solos.
- Relies on GPT-4, which may incur per-token costs.
- Some features like Compare to Market may be gated behind higher tiers.
- Not suited for litigation research.
as of 2026-06-25
Where the pricing makes sense
The company stage and team size where Spellbook's pricing actually pencils out — and where peers do it cheaper.
Spellbook's custom pricing targets law firms and in-house teams, not solos. Without public pricing, it's hard to compare; similar tools like Lexion or Ironclad also use custom quotes. For very small firms, Word-native alternatives like ClauseBuddy might be cheaper.
Setup time & first value
How long it actually takes to get something useful out of Spellbook — broken out by persona, not the marketing-page minute.
For individuals, installing the Word add-in takes about 5 minutes. Associate agent requires a desktop download (~10 minutes). Teams of 10+ may need a scheduled training session (1 hour). Full integration with iManage may take a few hours for IT.
Switching to or from Spellbook
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From manual redlining: Install Spellbook add-in, upload documents, start using Review, Draft, and Ask features.
- ↗To another Word add-in (e.g., ClauseBuddy): Export Playbooks and templates as Word files.
Integrations
Resources & Guides
- Guidespellbook.legal
Home
Spellbook Help Center
- Resourcespellbook.legal
Home
Spellbook Help Center
- Learnspellbook.legal
Legal AI Resources & Articles
Educational content from spellbook.legal
- Resourcespellbook.legal
Spellbook Blog: AI Contract Drafting & Review
Helpful link from spellbook.legal
- Resourcespellbook.legal
Legal Clause Library by Spellbook
Helpful link from spellbook.legal
Official links
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