Harvey AI is the enterprise generalist purpose-built for Am Law 100 — secure workflows across research, drafting, and diligence — while Spellbook is a Word-native add-in laser-focused on contract drafting and redlining for SMB transactional teams. Big Law buys Harvey for end-to-end coverage; small transactional shops get more value, faster, from Spellbook.
Comparison updated: 2026/05/25
Start with workflow fit, then verify price and evidence before procurement.
Editorial fit guidance is pending.
Editorial fit guidance is pending.
The most expensive legal AI in the market — Am Law 100 firms only.
AI contract drafting and review inside Microsoft Word for transactional lawyers.
Public source links are pending. Verify pricing, security, integrations, and product claims with each vendor before relying on this comparison.
Keep evaluating tools in the same topic or vendor shortlist before procurement.
Next decision paths
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Scores use LawyerAI's 1–5 methodology and appear only after a dated editorial review. Some scores are not yet published.