Spellbook is an AI contract drafting and review tool that operates as a Microsoft Word add-in, meeting attorneys in the environment they already work in rather than requiring them to adopt a new platform. It uses AI — including models from OpenAI and Anthropic — to help lawyers draft contract language, identify risks, suggest missing clauses, and negotiate more effectively, all within the familiar Word interface. Spellbook targets solo practitioners, small firms, and mid-market legal teams, with accessible pricing that makes it one of the more approachable AI legal tools for smaller practices. It differentiates through its Word-native integration, which eliminates the friction of context-switching to a separate AI tool, and through its publicly available entry-level pricing.
Spellbook
AI contract drafting and review built inside Microsoft Word.
Compliance
GDPR SOC 2
Key Features
- Word add-in integration: Operates directly inside Microsoft Word, so attorneys can access AI assistance without leaving the document they are working on or copying text into a separate tool.
- AI contract drafting: Suggests and generates contract language based on context, helping attorneys draft clauses and provisions faster than starting from a blank document or template alone.
- Risk flagging: Reviews contract language and highlights provisions that represent non-standard terms, elevated risk, or potential issues the attorney should address before finalizing.
- Missing clause detection: Identifies standard provisions that are absent from a draft contract, prompting attorneys to consider whether they should be included based on the contract type and context.
- Multi-model AI: Uses models from OpenAI and Anthropic, allowing the platform to apply different models to different drafting and review tasks based on performance.
- Negotiation assistance: Suggests alternative language for contested provisions, supporting attorneys during negotiation by generating options that address the counterparty’s concerns while protecting their client’s position.
Use Cases
- For solo practitioners and small firm lawyers drafting contracts: A solo attorney or small firm lawyer uses Spellbook within their existing Word workflow to draft commercial agreements faster, with AI flagging risks and suggesting language without requiring a dedicated legal AI platform subscription.
- For in-house counsel reviewing high contract volumes: An in-house lawyer at a mid-sized company uses Spellbook during routine contract review to quickly identify non-standard provisions and missing clauses across a steady flow of vendor and customer agreements.
Pricing MODELS
Saas subscription
Pricing Summary
Spellbook offers a Starter plan at $99/month and custom Business pricing for larger teams. Pricing is publicly listed on their website, making it one of the more transparent pricing models in the legal AI space.
Company Size Fit
Mid-market SMB
Technical Snapshot
API Available
Yes
LLM Provider
Multi-model
Open Source
No
Deployment Options
Cloud Saas