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mixus+W
Word Add-in

Your AI legal
assistant, inside Word

AI redlining, playbook-driven review, and document chat — all as a native sidebar in Microsoft Word. No switching apps.

Word DesktopWord OnlineMac & WindowsLitera compatible

Takes under 2 minutes. Included with all mixus plans.

Features

Everything you need to review contracts faster

Four powerful tools. One sidebar. Stays inside your Word workflow.

Review & Redline

AI edits that appear as Track Changes

Ask mixus to redline your document and every suggestion appears as a native Microsoft Word Track Change — attributed to 'mixus AI'. Review, accept, or dismiss each one individually, or accept all with one click.

  • Red strikethrough for removed text, green for additions
  • Accept or dismiss each suggestion one by one
  • Fully compatible with Litera Compare and iManage
  • Standard Word Track Changes — no extra software needed to review
Review tab showing 3 AI redline suggestions with Accept and Dismiss buttons

Playbooks

Your firm's review checklist, automated

Playbooks turn your standard review guidelines into one-tap automated reviews. Run your NDA playbook, SaaS agreement review, or any custom playbook you've built — and get structured Track Changes back instantly.

  • NDA, SaaS, MSA, employment, and custom playbooks
  • Every suggestion traces back to a specific playbook rule
  • Shared across your organization — consistent reviews every time
  • Iterate and refine after the initial review
Redline Analytics dashboard showing acceptance rate over time, top contributors, and per-document review history

Prompts

Saved instructions, AI-powered suggestions

The Prompt Library gives you one-tap access to the instructions you use most. mixus also reads your document and suggests relevant prompts automatically — so you always know what to tackle next.

  • Save your most-used redline and review instructions
  • AI-suggested prompts based on your document's content
  • Filter by category: NDA, Contract Review, M&A, Employment, Drafting
  • Share custom prompts across your team
Prompt library with saved prompts and AI-suggested prompts tailored to the document

Connected to mixus

Start in email. Continue in Word.

mixus works across email and Word — pick up wherever it's most convenient, with full context preserved throughout.

1

Email the agent

Forward a contract to your mixus agent email address with instructions. The AI reviews it and sends back a redlined draft with tracked changes.

2

Receive the redline

Your inbox gets back a .docx with AI-suggested changes as standard Track Changes. Open it in Word — your mixus sidebar is ready to continue.

3

Iterate in Word

With the plugin open, run further playbooks, ask follow-up questions, or trigger a second-pass redline — all with the document already in front of you.

Works with your stack

Fits into your existing workflow

  • Litera Compare — Track Changes appear exactly as Litera expects
  • iManage — Open documents from iManage, review with mixus, save back
  • Word Desktop — Windows and Mac, Word 2016 or later
  • Word Online — Full feature support in the browser
  • No new software — Reviewers don't need a mixus account to see Track Changes

Security & privacy

Your documents stay yours

  • Documents sent to mixus only when you trigger a review or redline
  • All communication encrypted over HTTPS
  • Track Changes attribution stored in the Word document only
  • Covered by your existing mixus data processing agreement
  • IT admin deployment via Microsoft 365 Admin Center

Mixus vs Claude

Word is the venue—org workflow is the differentiator

You are used to Track Changes and comments as the system of record. Document features in general-purpose AI continue to expand (including Microsoft-365–adjacent options for some Claude customers), but firm-wide review with playbooks and analytics is still a packaging problem. Mixus meets lawyers in Word with org-backed redlines—not a one-off sidebar experiment.

Word where lawyers already live

Review inside the document, not only beside it.

Playbooks and review discipline

Institutional standards, not one-off prompts.

Spreadsheets and memos as deliverables

Working Excel outputs, not only chat text.

Admin, monitoring, and org controls

Visibility for innovation and risk teams alike.

Includes narrative context, a capability matrix, and primary sources with a visible last-updated date.

mixus+W

Get started in 2 minutes

Install the add-in, open any Word document, and start reviewing with AI. Included with all mixus plans.