Spellbook is an AI-powered legal platform that streamlines contract drafting, review, and analysis for commercial lawyers. The platform integrates directly into Microsoft Word, enabling lawyers to work within their existing environment without switching between applications or managing excessive copy-paste workflows. Spellbook uses advanced large language models from OpenAI, including GPT-5, along with models from Anthropic, combined with proprietary legal datasets to deliver accurate contract assistance.

The platform offers comprehensive contract review capabilities that identify risks, unusual terms, missing clauses, and non-market provisions. Lawyers can generate redlines, suggest negotiation points, and receive intelligent recommendations based on billions of lines of legal text training. The drafting functionality allows users to create contracts from scratch, pull from saved clause libraries, and modify existing agreements with contextual understanding of legal nuances.

Spellbook includes specialized features such as multi-document workflows through Associate, industry benchmarking tools that compare contracts against over 2,000 common standards, and an Ask feature that provides quick answers to complex legal questions with citations. The platform supports customizable contract playbooks that allow teams to save and reuse specific review instructions.

Trusted by over 4,000 law firms and in-house legal teams worldwide, Spellbook operates across 80 countries and maintains compliance with major privacy regulations including SOC 2 Type II, GDPR, CCPA, PIPEDA, and HIPAA. The platform is designed specifically for transactional lawyers handling areas such as real estate, intellectual property, mergers and acquisitions, formation, estate planning, and entertainment law.