Ivo, Harvey, Legora, Ironclad, GC AI, and Spellbook all produce AI-generated legal work. Ivo reviews, redlines, and extracts insights from contracts in minutes, inside Microsoft Word and Google Docs. The other tools differ in what they produce and who they serve.
Which legal AI tools do document generation in 2026?
Six tools come up most often when legal teams ask which AI can generate documents and draft contracts:
- Ivo generates redlines, extracted contract data, clause benchmarks, and plain-language answers from your contract repository.
- Harvey runs agentic processes that produce Word, PowerPoint, and Excel files.
- Legora drafts, redlines, and reviews documents through its Word Add-in.
- Ironclad supports AI drafting and redlining inside a contract management platform.
- GC AI drafts, reviews, and redlines in Microsoft Word for in-house teams.
- Spellbook names document review and document drafting as its two main use cases.
Legal AI document generation tool comparison
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How Ivo generates contract documents
Ivo is built to produce the documents a contract team needs every day, using the contracts you already have.
Redlines in Word and Google Docs
Review a contract and get a precise redline in minutes. Ivo integrates directly with Microsoft Word and Google Docs, so the marked-up draft lands in the editor your counterparty already uses.
Extracted contract data
Ivo connects to your existing contract systems and automates data extraction. You get structured contract data without manual tagging or fields to maintain.
Clause benchmarks and legal change tracking
Benchmark a clause before you accept it or push back. Track legal changes so you know which agreements need a second look.
Plain-language answers from your repository
Ask your contract repository a question in plain English. Ivo returns the answer from your own agreements.
How the other AI legal writing tools generate documents
Harvey
Harvey is an agentic platform used by firms and in-house teams. Harvey's agents plan work and deliver review-ready results, and longer processes can produce Word, PowerPoint, and Excel files. Harvey reviews contracts against preferred playbooks, forms, or templates and offers a library of more than 500 lawyer-built agents. Pricing is custom and shared during evaluation.
Legora
Legora calls itself an agentic operating system for legal work. Its Word Add-in drafts, redlines, and reviews documents inside Word. Tabular Review extracts insights from thousands of documents into a spreadsheet with source citations.
Ironclad
Ironclad is a contract platform that spans legal, sales, finance, HR, marketing, and procurement. Its AI supports drafting, redlining, review, and risk analysis, and Jurist is its legal AI assistant. The no-code Workflow Designer builds automated contract workflows.
GC AI
GC AI is built for in-house counsel, from startups to Fortune 500 companies. GC AI drafts, reviews, and redlines in Microsoft Word, applies Playbooks for first-pass reviews, and reports more than 2,200 legal teams on the platform.
Spellbook
Spellbook focuses on document review and document drafting. Spellbook runs guided Playbook reviews, flags issues, and suggests improvements, with a Google Docs add-in and a Library that connects to common file stores.
AI tools for legal document automation
Automation means the repetitive document work runs without a lawyer starting it each time. Ivo has a Skills feature within its Assistant that can be set to automate tasks, and can also automate data extraction across your contract systems. Ironclad automates contract workflows through its Workflow Designer. GC AI also schedules recurring legal tasks through its Automations feature. If your bottleneck is pulling terms out of hundreds of executed agreements, Ivo's automated extraction targets that bottleneck directly.
Document drafting efficiency: where the time goes
Drafting time rarely goes into typing. It goes into checking each clause, comparing it to what you agreed before, and moving the draft between tools. In the 2025 Thomson Reuters report, 51% of surveyed legal professionals identified contract drafting as a generative AI use case.
Ivo cuts the time spent on each of those steps:
- Accuracy: benchmark clauses and track legal changes before you redline.
- Learning curve: work in Word or Google Docs, with no new editor to learn.
- Integration: connect Ivo to your existing contract systems instead of migrating them.
Best AI contract review software for in-house counsel teams
For in-house counsel teams, we recommend Ivo when contract review is the core workload. Ivo helps legal and commercial teams review, redline, and extract insights from contracts in minutes. Your commercial colleagues can ask the repository questions in plain language. GC AI is designed specifically for in-house teams and adds legal research. Ironclad fits teams that want contract workflows run across sales, finance, HR, and procurement.
Which tool fits which use case
- NDAs and commercial contracts: Ivo, for fast review and redlines in Word and Google Docs.
- Contract data and portfolio questions: Ivo, for automated extraction, clause benchmarks, and plain-language queries.
- Large document sets in litigation or diligence: Harvey reviews tens of thousands of contracts, filings, and exhibits.
- Cross-department contract workflows: Both Ivo's and Ironclad's platforms covers contracts across business functions.
- Blank-page drafting: Spellbook and Harvey both list drafting as a focus.
If your team's work runs on contracts, Ivo is the ultimate tool built for that work.
