LexDraft vs Microsoft 365 Copilot in Word
Facts checked on 14 October 2026. Prices change, so check each vendor's page before you decide.
This page is about Microsoft 365 Copilot for business, including the Legal Agent for Word. It is not about the consumer Copilot in Microsoft 365 Personal or Family.
The short answer
- Choose Copilot if your firm already pays for Microsoft 365, you want AI across Word, Outlook, Excel and Teams, and you can join Microsoft's Frontier preview for the Legal Agent.
- Choose LexDraft if you are a US solo lawyer or small firm that wants contract review with built-in playbooks, rule-based checks and a case-law citation check, on Word for Windows, Mac or the web, with a free plan.
Side by side
| LexDraft | Microsoft 365 Copilot in Word | |
|---|---|---|
| Price | Free plan. Professional: $99 a month or $990 a year. Business: $199 a month or $1,990 a year. Enterprise: custom. | Copilot Business: $21 a user a month paid yearly ($18 a month first-year offer to 31 Dec 2026), or $25.20 a month paid monthly. Needs a qualifying Microsoft 365 business plan. |
| Try it | Free plan: 5,000 generated words a month, no credit card. | One-month free trial. A credit card is required. |
| Legal features | Built for contracts. Four built-in playbooks: NDA, SaaS MSA, DPA, Services. | General Copilot, plus the Legal Agent: you upload your own playbook (.docx) and it becomes a reusable "skill". |
| Redlines | Native Word tracked changes, word-level edits. | Legal Agent proposes redlines as tracked changes and can add a comment explaining them. |
| Status | Listed on Microsoft AppSource. | Legal Agent is a Frontier preview feature; Microsoft says availability "may change". |
| Where it works | Word 365 (Windows and Mac), Word 2021, Word on the web. | Legal Agent: Word desktop, version 2604 or later. |
| Consistency checks | Defined-term and cross-reference checks that run without AI. | See Microsoft's documentation. |
| Case law | Citations checked against CourtListener, with a verified or unverified mark. | Microsoft says Legal Agent outputs "do not incorporate live legal databases". |
| Jurisdiction | US law: federal, all 50 states and D.C. | Microsoft says the agent "is not jurisdiction-aware by default". |
Where Copilot is stronger
- Cost if you already have Microsoft 365. Copilot Business lists at $21 a user a month paid yearly, well below LexDraft Professional at $99 a month.
- One AI across your apps. Copilot works in Word, Excel, PowerPoint, Outlook and Teams.
- Your own playbook. The Legal Agent turns a .docx playbook you upload into a reusable review skill. LexDraft has four built-in playbooks.
- Microsoft's controls. The Legal Agent runs inside the Microsoft 365 security, compliance and governance controls your firm already uses.
Where LexDraft is stronger
- Case-law citation check. LexDraft checks citations against CourtListener. Microsoft says its Legal Agent does not use live legal databases. Counsel must still verify every authority.
- Built for US law. LexDraft drafts under US federal and state law. Microsoft says its agent is not jurisdiction-aware by default.
- Works on Mac and the web. LexDraft runs on Word for Mac and Word on the web. Microsoft documents the Legal Agent for Word desktop.
- Free to start, no card. The free plan has no time limit and needs no credit card.
What about Agent Mode in Word?
Microsoft describes Agent Mode as a content creation agent that creates and edits content in Word. In the consumer plans it is now called "Edit with Copilot". For contract work, Microsoft's own Legal Agent announcement says general-purpose AI tools "aren't designed to follow the structured processes legal teams rely on".
Which should you pick?
| If you... | Pick |
|---|---|
| Already pay for Microsoft 365 and want AI in Word, Excel, PowerPoint, Outlook and Teams | Copilot |
| Want to review against your own playbook | Copilot Legal Agent |
| Want citations checked against CourtListener | LexDraft |
| Use Word for Mac or Word on the web | LexDraft |
| Want to start without a credit card | LexDraft |
Frequently asked questions
Can Copilot review a contract in Word?
Yes. Microsoft's Legal Agent in Word can answer questions about a contract, propose tracked-change redlines and review against your playbook. It is a Frontier preview feature and needs a Copilot license.
How much does Copilot in Word cost for a small firm?
Microsoft 365 Copilot Business lists at $21 a user a month paid yearly, or $25.20 paid monthly, on top of a qualifying Microsoft 365 business plan.
Does Copilot check case citations?
Microsoft says Legal Agent outputs reflect model training data and do not use live legal databases, and may include citation errors.
Can I use LexDraft and Copilot together?
LexDraft is a separate Word add-in from Microsoft AppSource, so a firm with Copilot can install it too.
Try it
Install LexDraft free from Microsoft AppSource. 5,000 generated words a month, no credit card.
Install LexDraft freeMore comparisons
Microsoft, Microsoft 365, Copilot and Word are trademarks of Microsoft Corporation. This page compares public information as of 14 October 2026 and is not endorsed by Microsoft. LexDraft does not give legal advice; qualified counsel must review every draft. Spotted something out of date? Email support@lexdraft.ai and we will fix it.