Harvey vs Spellbook: pricing, features and which to choose

Harvey is an enterprise legal software company founded in 2022 by Winston Weinberg and Gabe Pereyra, according to TechCrunch’s account of its origin. Its March 2026 announcement said more than 100,000 lawyers across 1,300 organizations used Harvey, while the homepage later reported 3,500-plus legal organizations, 200,000-plus professionals, and use in more than 85 countries. In September 2026, Harvey announced $550 million in funding at a $15.5 billion valuation. The company’s March announcement said it had raised more than $1 billion in total funding. Harvey remains an active legal software company. Harvey targets law firms and corporate legal departments through an enterprise sales process. Its products combine legal assistance with shared document workspaces, rather than offering a consumer-facing legal-advice subscription.

Harvey organizes work across agents, Spaces, Vault, contract intelligence, research, and Command Center. A typical engagement starts with a user uploading documents or working in a connected workspace, then asking Harvey to analyze, compare, summarize, draft, or extract information. Vault is designed for querying large document collections, while agents route tasks across complex legal work. Shared Spaces bring firms, clients, and co-counsel into one workspace with governance and ethical-wall controls. Command Center gives administrators visibility into usage across teams, practice groups, and offices. Teams can keep reference documents in Vault and use workflows to repeat a structured task. The platform also offers a Word add-in, reducing the need to move contract drafting entirely into a separate interface.

The company's security page says customer data is not used to train models. Buyers still need to review retention, access controls, and deployment terms against their own confidentiality obligations before putting client documents into production. Harvey’s clearest advantages are its breadth of legal workspaces, model selection, custom agents, document collections, and administrative controls. Its main tradeoffs are opaque pricing, enterprise deployment requirements, reliance on external model providers, and the need for lawyers to check generated work. Clio Duo, Spellbook, LexisNexis Protégé, CoCounsel, Luminance, and Ironclad AI overlap with parts of Harvey’s legal-assistance category, although their product scopes differ. Harvey is the stronger fit for larger firms and in-house departments that need shared legal workspaces, custom agents, regional processing, and governance. Smaller teams should first confirm pricing, implementation effort, and required controls.

Spellbook is a contract AI suite made by Dialog Enterprises Inc., a Canada-based company that operates under the Spellbook name. The company says its first generative contract review tool launched in 2022, and its current website says more than 5,000 legal teams use the product. Its October 2025 funding announcement reported 4,000 law firms and in-house legal teams in 80 countries, while the current site reports more than 5,000 teams. The company’s product focus is transactional work: drafting agreements, reviewing terms, applying redlines, and keeping positions consistent across a deal. Spellbook is therefore aimed at commercial legal teams rather than users seeking a general legal chatbot or a dedicated case-law research database.

A normal Spellbook workflow starts with a contract or intake request and keeps the lawyer in the review loop. The product can pull contracts from email and Slack, run a first-pass review against team standards, draft clauses or full agreements, and produce tracked redlines in Word. Review, Draft, Ask, Benchmarks, and Playbooks cover the Word add-in workflow. Playbooks turn recurring instructions into reusable review checklists, while Library and Repository features make precedents and signed agreements searchable. Associate is a multi-document agent for transactional matters that works under attorney oversight. Spellbook also lists integrations with Google Docs, OneDrive, Dropbox, SharePoint, Google Drive, and iManage. The lawyer remains responsible for checking suggested language and deciding which changes to accept.

Spellbook’s contract focus is useful for lawyers who work in Word and apply repeatable review standards, but it limits the product’s role. Harvey overlaps on AI-assisted legal drafting and analysis, while Ironclad overlaps more closely on contract operations, repository management, and lifecycle workflows. LawGeex is another contract-review alternative. Spellbook publishes no dollar price, requires attorney oversight, and does not present itself as a substitute for legal judgment. Its public pages also do not establish a self-hosted deployment or a public developer API. Choose Spellbook if your team drafts and negotiates commercial contracts and wants Word-based review with reusable playbooks. Choose a broader legal research or contract-lifecycle product when those functions matter more than Word-native review.