Pros & cons
Our analysisPros
- Works directly inside Microsoft Word
- Powered by Claude and other LLMs
- Reviews and generates legal contracts
- Free tier and API available
Cons
- Primarily suited for transactional lawyers
- Desktop-only via Word add-in
- Scope limited to contract work
What users say
Spellbook is commonly used by transactional lawyers who need AI-assisted contract drafting and review without leaving Microsoft Word. A frequently noted strength is its integration of powerful LLMs directly into a familiar legal workflow. A common limitation is its narrow focus on contract documents and its dependency on a desktop Word environment.
Editorial summary based on public information.
Best for
Transactional lawyers drafting and reviewing contracts in Microsoft Word
Manually choose competitor 
Spellbook
DocLegal.AI
Airstrip AI
WhatLetter
Luminance
LawBotica
OpenAI
Google Gemini
Perplexity| Feature | Spellbook | DocLegal.AI |
|---|---|---|
| Pricing | Free | Paid |
| Free tier | Yes | No |
| API | Yes | Yes |
| Open source | Yes | No |
| Platforms | Desktop | Mobile App |
| Models | Spellbook | Doclegal |
| Context window | 1M | 32k |
| Launched | 2018 | 2023 |
Top alternatives to Spellbook
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DocLegal.AI
Generate legal documents for $2.50 each
Airstrip AI
Generate legal documents and contracts with AI
WhatLetter
Translate and discuss documents in any language
Luminance
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Specs
| Pricing | Free |
|---|---|
| Free tier | Yes |
| API | Yes |
| Open source | Yes |
| Platforms | Desktop |
| Models | Spellbook |
| Context window | 1M |
| Launched | 2018 |