Spellbook vs CoCounsel

Tagline

AI contract review, drafting, and agentic solutions directly inside Microsoft Word.

Trusted legal AI assistant by Thomson Reuters

Category

Pricing

Rating

Platforms

API

Open source

Description

Spellbook is an AI-powered legal copilot designed for transactional lawyers, in-house teams, and law firms. It integrates directly with Microsoft Word, utilizing advanced LLMs such as GPT-5 and Claude to automate contract drafting, redlining, standard compliance reviews, and multi-document workflows.

CoCounsel drafts, reviews, and researches legal documents with citation-grade accuracy.

Key features

• AI Contract Review & Redlining
• AI Contract Drafting from Scratch
• Compare Contracts to Industry Standards
• Quick Legal Q&A with Citations
• Playbooks for Encoding Legal Standards
• Multi-document AI Associate Workflows
• Zero Data Retention (ZDR) Agreements
• SOC 2 Type II Security Compliance
• GDPR, CCPA, and PIPEDA Adherence

• Citation graphs
• Memo drafts

Pros

• Integrates directly within Microsoft Word, preventing the need to switch windows or copy-paste text.
• Offers a 7-day free trial of features and workflows for lawyers and legal teams.
• Ensures privacy by utilizing Zero Data Retention agreements that exclude user data from model training.
• Highly compliant with rigorous data protocols, securing SOC 2 Type II, GDPR, CCPA, and PIPEDA standards.
• Provides playbooks to write, save, and reuse custom legal review and instructions.
• Includes academic partnerships offering free workspace access to legal academic institutions.
• Leverages cutting-edge LLMs including GPT-5 and Claude Opus for tailored legal reasoning.
• Multi-document workflows can be handled efficiently with the Spellbook Associate AI agent.
• Delivers legal guidance and question answering backed by trustworthy citations.

• Legal-domain trained
• Thomson Reuters backing
• Westlaw citation grounding
• Deep contract review
• Deposition prep
• Legal research automation
• Enterprise security
• Multi-jurisdiction support

Cons

• Pricing is not transparently listed on the website, requiring potential users to book a sales demo.
• The standard free trial window is restricted to a period of 7 days.
• No public API or developer reference documentation is mentioned on the product pages.
• No native mobile apps for iOS or Android platforms are listed for legal work on-the-go.
• Self-service subscription sign-up is unavailable; users must connect with sales to get a customized license.

• Expensive enterprise pricing
• US law primary focus
• Requires TR ecosystem
• Not for solo practitioners
• Slow onboarding
• Limited customization
• Occasional citation errors
• Steep learning curve

Pricing plans

Website