Spellbook is an AI contract review platform for transactional lawyers, deeply integrated into Microsoft Word and leveraging large language models such as GPT-5 and Claude to help legal teams draft and review contracts with greater speed and precision.
Purpose
Spellbook is designed to provide end-to-end contract AI support for in-house legal teams and law firms, covering the full pre- and post-signature contract lifecycle, including review, drafting, comparison, and standardization management, in order to reduce reliance on outside counsel and improve efficiency.
Key Capabilities
- Review and redlining: Review contracts and flag risks, support precise edits, and make all suggestions traceable.
- Multi-document workflows: Handle complex tasks involving multiple documents.
- Drafting: Quickly generate new clauses, complete agreements, and revised drafts from scratch or from a saved template library.
- Comparison: Compare contracts against industry standards.
- Quick Q&A: Provide fast answers to complex questions.
- Playbooks: Encode a team's legal standards into automated checklists and enforce them in every review.
- End-to-end contract management: Automatically pull contracts from email and Slack for first-pass review; store signed contracts, support search, and monitor renewals and new risks.
How to Use
Spellbook runs directly in Microsoft Word, allowing users to use AI features without leaving their familiar writing environment. It can integrate with existing systems and support automatically receiving contracts from email and Slack. The platform also offers early access to "Autonomous Contract Management (ACM)," the first end-to-end AI system for driving contracts.
Use Cases
Suitable for in-house legal teams and law firms, covering industries such as energy, healthcare, financial services, technology, manufacturing, retail, and consumer goods. It is said to be used by more than 5,000 in-house teams and law firms, can save 75% of contract work time, and can double throughput without adding staff.
Limitations and Security
The platform provides enterprise-grade security and privacy protection, including zero data retention (LLM providers do not learn from, train on, or store user data), SSO, MFA, encryption, and audit controls, making it suitable for legal-grade confidentiality requirements. However, details such as specific pricing and free trials are not currently provided.