Microsoft Copilot for Legal: What's New, Contract Review, and Alternatives (2026)
Microsoft Copilot for Legal became generally available on October 15, 2026. Microsoft announced more than 20 purpose-built legal skills, plus new partner-built plugins. The skills work in Word and in Cowork. They cover drafting, redlining, playbook-based contract review, obligation tracking, and case chronologies.
This guide covers what Microsoft announced, how contract review works, and how to access Copilot for Legal. It also covers the partner plugins, security controls, and the main alternatives. Facts were read from Microsoft's own blog posts and support pages on October 16, 2026.
What Microsoft announced on October 15
Microsoft published "Introducing Microsoft Copilot for legal" on its Copilot blog on October 15, 2026. The post opens with a problem legal teams know well. It says "In legal work, the answer rarely sits neatly in one place."
The headline is general availability. Microsoft says it is announcing "the general availability of more than 20 purpose-built legal skills and new partner-built plugins." They bring "legal-specific capabilities and trusted sources directly into Microsoft Copilot."
The post stresses that the skills are not just prompts. It says "Each skill combines legal-specific reasoning with the native capabilities of Microsoft 365 to produce work in the format legal teams need."
Its main example is redlining. Microsoft says "Copilot can determine how a clause should change while Word applies the edit as a native tracked change." The edit also "preserves the document's formatting."
The rollout is wide. The post says "The new legal capabilities in Copilot are generally available to Microsoft Copilot customers worldwide today."
From Legal Agent to Copilot for Legal
Copilot for Legal grew out of an earlier test. On April 30, 2026, Microsoft introduced the Legal Agent in Word. That post said it was "available today in Word on Windows desktop through the Frontier program Worldwide."
The October post makes the link explicit. It says "Building on what we previously introduced as Legal Agent, these capabilities now come together as legal plugins in Copilot."
Microsoft also shares early usage numbers. It says "Since Frontier release in April, more than 1,800 users have generated nearly 100,000 edits." Users chose "to keep roughly seven in ten suggestions." Those figures come from Microsoft's own reporting.
So the change on October 15 is a move from preview to general availability. It also widens the scope from Word alone to Word plus Cowork.
What the legal skills do
Microsoft groups the work into five areas. Each one names a kind of output a legal team already produces.
| Area | What Microsoft says it does |
|---|---|
| Draft and prepare | "Turn approved precedents and templates into new agreements or structured legal memos" |
| Review and negotiate | "Review agreements against playbooks, help identify terms needing attention, and propose tracked edits" |
| Track obligations | "Extract commitments, deadlines, and triggers, and trace related agreements" |
| Research to guidance | "Compare materials and requirements, identify potential gaps" |
| Move matters forward | "Build case chronologies, surface key dates and open questions" |
The skills split across two places. In Word, Copilot works inside the document you have open. In Cowork, Microsoft says legal professionals "can delegate broader, multi-step work across agreements, emails, meetings and files."
The Cowork examples are the multi-document jobs. They include "tracking obligations and deadlines across contract portfolios, comparing key terms across agreements, and building case chronologies."
One more feature is on the way. Microsoft says a Word experience "coming to preview later this month" will help users move between defined terms and their definitions.
How contract review works in Word
Microsoft's support article, "Get started with Copilot for legal," walks through contract review step by step.
The review runs from a playbook. The article says Copilot "ingests your playbook, breaks it down into a series of rules, and then systematically reviews your contract by using those rules." The playbook must be a .docx file.
The flow has five steps:
- Ask for a review. The article suggests a prompt like "Review this contract using a playbook."
- Add your playbook. Upload it from your computer or attach it from Microsoft 365.
- Check the rules. Copilot breaks the playbook into topics, each with rules and example clauses. You can edit them.
- Read the review. Results stream in one topic at a time, with the rules used for each.
- Accept or dismiss edits. Suggested changes arrive as tracked changes. An "Accept All" button inserts every edit.
There is a clear limit. The article says "Copilot can currently only perform contract reviews from playbooks." It adds that "Copilot can't yet review contracts from templates or other documents."
Answers come with references. The article says "Each response comes with numbered citations." Clicking one highlights the part of the document Copilot used.
Drafting works from your own precedents. The article says "You can have Copilot draft a new document based on past contracts or templates." Copilot converts the source into a template and lists placeholders. You can then fill them from uploaded content or by hand.
The article also gives prompt advice. It suggests a specific ask over a vague one. Instead of asking about all risks, ask about risks "to the seller related to service delivery."
Partner plugins in Copilot for Legal
The second half of the launch is partner plugins. Microsoft says they span "legal research; document, matter, and transaction management; agreements and electronic signature; legal AI; and e-discovery."
The post names partners in each group:
- Legal research: Bloomberg Law, Trellis, Descrybe Legal Engine, Legal Data Hunter, Courtroom5, and Lawstronaut.
- Document and matter management: iManage Work, NetDocuments, Box, Litera, HighQ from Thomson Reuters, LegalZoom, and Solve Intelligence.
- Agreements and e-signature: Docusign, Juro, Adobe Acrobat Sign, LawVu, SignatureAPI, Dropbox Sign, and PandaDoc.
- Specialized legal AI: Harvey, Legora, and DeepJudge.
- E-discovery: Everlaw and Relativity.
Rollout is gradual. Microsoft says the plugins "are beginning to roll out through the Microsoft plugin registry, with additional plugins becoming available over time."
How to access Microsoft Copilot for Legal
Access depends on your Microsoft 365 license. The support article says "Before you begin, make sure you have an active Microsoft 365 Copilot commercial license."
The article adds that the plugins "are available in Copilot in Word and Cowork for all Microsoft 365 Copilot commercial subscribers." It names Word desktop specifically.
In Word desktop, the legal plugin is on by default. The article says "Copilot automatically detects when you have a legal document open and uses legal skills to respond to your query."
In Cowork, you add it first. The article says to "add the Legal plugin from Customize." You can then call a skill with the / command or the + menu.
Microsoft also lists a webinar. It invites users to a session on October 22 to "see the new legal skills in action." For license pricing, see Microsoft's own pricing page for Microsoft 365 Copilot.
Security and review controls
Legal teams will ask about data first. Microsoft's post says Copilot "processes prompts and responses within the Microsoft 365 service boundary, with enterprise data protection."
It also lists three rules. Copilot "works only with content each user can access" and "honors sensitivity labels." It also "does not use prompts, responses, or documents to train the underlying foundation models."
Review stays with the lawyer. The post says Copilot "presents proposed edits for review and applies them only with the user's approval."
Microsoft is also direct about responsibility. Its April post says "The Legal Agent does not provide legal advice or professional determinations." It adds that it "is not a substitute for the judgment of a qualified legal professional."
Microsoft Copilot for Legal alternatives
Several vendors sell AI for legal work. Some of them are also Copilot plugin partners, so a team may use both. Descriptions below come from each vendor's own site, read on October 16, 2026.
| Option | What it is | Where it works |
|---|---|---|
| Microsoft Copilot for Legal | 20+ legal skills plus partner plugins | Word desktop and Cowork |
| Harvey | "AI software for legal and professional services" | Its own platform; also a Copilot plugin partner |
| Legora | "A single system that connects information, communication, and the execution of legal work" | Its own platform; also a Copilot plugin partner |
| Spellbook | Contract review and drafting, with playbooks and tracked redlines | Its own platform |
| CoCounsel Legal | Thomson Reuters AI grounded in Westlaw and Practical Law content | Thomson Reuters products |
| Powerdrill Bloom | Questions across many uploaded documents, with cited answers, reports, and slides | Its own workspace |
Harvey describes "Purpose built agents" that "execute complex legal work end to end." It also lists bulk document analysis.
Spellbook focuses on contracts. Its site says it helps teams "Review contracts, draft agreements, and keep every position consistent across the deal." It also says it can "Surgically redline contracts."
CoCounsel Legal ties research to Thomson Reuters content. Its page says it can "Integrate research, analysis, and drafting with professional-grade AI grounded in trusted Westlaw and Practical Law content."
For general Copilot options outside legal work, see our list of Microsoft Copilot alternatives. For Cowork itself, see Powerdrill Bloom vs. Copilot Cowork.
Comparing terms across many contracts
Copilot for Legal's Word skills work inside the open document, with a lawyer reviewing each edit. Cowork takes on some multi-document work, such as obligations across contract portfolios. Some questions sit across a whole folder instead. Which supplier agreements renew next quarter? Which ones cap liability below a set amount?
That is a document analysis job, and it is where Powerdrill Bloom can help. Its homepage says "Every number comes back with the page, the row and the figure behind it."
The ChatPDF page describes datasets of "up to 1,000 files in various formats, including PDF, Word, Markdown, PPT, and more." It says answers are "backed by clear, cited sources." You can upload a set of agreements and ask for a table of renewal dates, notice periods, and liability caps. Each row should point back to the clause it came from.
Our guide to building a contract renewal tracker with AI walks through that use case. The Free plan on the pricing page lists "Upload Excel, CSV, PDF, and docs." Pro is $199.00 per year.
This is analysis, not legal advice. A lawyer still decides what a clause means and what to change. Want to test it on a contract set? Try Powerdrill Bloom with five agreements you already know well.
How to evaluate Copilot for Legal in a pilot
A short pilot will show more than a demo. Five checks help a legal team decide.
- Use your own playbook. Run a review with a real playbook, not a sample one.
- Pick known contracts. Use agreements where you already know the issues, so you can score the results.
- Count kept edits. Track how many suggested redlines you accept, change, or dismiss.
- Click the citations. Check that each answer points to the right clause.
- Test a portfolio task. In Cowork, ask for obligations and deadlines across ten agreements.
Write down the time each task took with and without Copilot. Compare that with the edits you had to fix.
Frequently asked questions
What is Microsoft Copilot for Legal?
Microsoft Copilot for Legal is a set of more than 20 legal skills and partner plugins in Microsoft Copilot. It became generally available on October 15, 2026. It works in Word desktop and in Cowork, for drafting, redlining, contract review, and obligation tracking.
How do I get Copilot for Legal?
Microsoft's support article says you need an active Microsoft 365 Copilot commercial license. The legal plugin is on by default in Word desktop. In Cowork, add the Legal plugin from Customize, then use the / command or the + menu.
Can Copilot review a contract against our playbook?
Yes. You upload a playbook as a .docx file, and Copilot turns it into rules and reviews the contract topic by topic. Edits arrive as tracked changes. Microsoft says it cannot yet review contracts from templates or other documents.
Does Copilot for Legal replace a lawyer?
No. Microsoft says the Legal Agent "does not provide legal advice or professional determinations." Copilot proposes edits and applies them only with the user's approval. A qualified lawyer still reviews the work.
What are the best Copilot for Legal alternatives?
Alternatives include Harvey, Legora, Spellbook, and Thomson Reuters CoCounsel Legal. Harvey and Legora are also Copilot plugin partners. For questions across many contracts at once, Powerdrill Bloom returns cited answers, tables, and reports.
Sources: Microsoft Copilot Blog, Introducing Microsoft Copilot for legal · Microsoft Support, Get started with Copilot for legal · Microsoft 365 Copilot Blog, Word: Legal Agent in Frontier · Harvey · Legora · Spellbook · Thomson Reuters, CoCounsel Legal. Details read from vendor pages on October 16, 2026.