Spellbook: AI Contract Review & Drafting in MS Word

Spellbook brings the power of GPT-4o and other leading large language models straight into the Microsoft Word documents transactional lawyers already work in every day. Instead of bouncing between separate platforms, attorneys can draft contracts from a blank page, review existing agreements for hidden risks, and generate redlines without ever leaving their familiar drafting environment. The tool acts like an always-on junior associate, surfacing suggested language, flagging problematic clauses, and answering nuanced legal questions on demand. Beyond single-document editing, Spellbook supports multi-document workflows and benchmarks contract language against industry standards, giving lawyers a quick sense of whether their terms are market-standard or outliers. This combination of drafting assistance, risk detection, and comparative analysis is built specifically for the realities of transactional practice, whether that's negotiating an NDA, closing an M&A deal, or reviewing a stack of vendor agreements. By automating the repetitive first-pass review work, Spellbook frees up lawyers to focus on strategy, negotiation, and client counsel rather than manual redlining.

Install the Spellbook add-in for Microsoft Word and open any contract you're working on. Use the sidebar to draft new clauses or entire agreements from scratch, or run a review on an existing document to have Spellbook flag risky language and suggest redlines. Ask Spellbook direct questions about specific provisions to get instant, context-aware answers. For deals involving several related documents, use the multi-document workflow to keep terms consistent across the transaction, and run a benchmarking check to see how your contract compares to industry norms before finalizing.