Spellbook is a Canadian legal AI company that builds generative AI tools for transactional lawyers. Founded in 2017 as Rally Legal, it launched its flagship product - a generative AI copilot for contract drafting, review, and negotiation - in September 2022. The software operates directly within Microsoft Word and, according to the company, can accelerate contract work by up to ten times. Spellbook claims to be the first generative AI copilot built specifically for lawyers.
The company's engineering work sits at the intersection of large language models and legal practice. Engineers work directly with models including OpenAI's GPT-4, tuned on proprietary legal datasets, to build tools that handle document-heavy workflows. Technical domains span generative AI, NLP, machine learning, and software engineering for legal processes. The team numbers over 50 and is distributed across Canada, working asynchronously with periodic in-person gatherings.
Spellbook has raised $80M and counts Khosla Ventures, Thomson Reuters Ventures, and Inovia Capital among its backers. The product has reached more than 4,000 customers across 80 countries, according to company figures. Its stated mission is to reduce document drudgery for lawyers - freeing them for higher-judgment work - rather than to automate legal decision-making outright.