Feature Comparison
An honest, feature-by-feature breakdown. We're proud of where we lead — and transparent about what we're still building.
Full Breakdown
| Feature | Harvey | Legora | mixus |
|---|---|---|---|
| Document Review | |||
AI redlining with native Track Changes | |||
Playbook builder and enforcement | |||
In-document AI chat and Q&A | |||
Anonymize / redact sensitive information | |||
Template and table filling | |||
Custom saved prompts for your team | |||
AI-suggested review prompts per document mixus reads your document and auto-suggests the most relevant review questions | |||
Redline over redline (preserve existing Track Changes) mixus layers new suggestions on top of existing tracked changes without destroying prior edits | |||
Clickable source citations (deep link to playbook rule) Click any playbook-backed suggestion to view the full rule — standard position, fallbacks, guidance, and example language | |||
| Knowledge & Learning | |||
Persistent firm knowledge memory Harvey has a document Vault for the session; mixus builds a persistent memory of everything your firm has ever worked on | |||
AI learns from reviewer accept/reject decisions Every accept or reject trains mixus to better match your firm's style over time | |||
Knowledge grounded in firm precedents Harvey: upload specific precedent files per session. mixus: persistent memory applies automatically | |||
| Integrations & Workflow | |||
100+ app integrations (Gmail, Slack, Google Docs, and more) | |||
Email → Word workflow (forward contract, get redlined .docx back) | |||
SharePoint integration | |||
Outlook plugin | Soon | ||
| Document Editing & Drafting | |||
Presentations, memos, and structured documents (via email agent or web) Email agent@mixus.ai with a brief — get back a drafted document. Not a Word plugin feature, but part of the broader mixus workflow | |||
Writing improvement for selected text Legora has a dedicated one-click button; mixus via document chat | |||
Full document translation (format-preserving, multi-language) Legora uses DeepL and preserves document formatting inside Word | Soon | ||
| Research & Analytics | |||
General web research inside chat | |||
Premium legal database integrations (LexisNexis, EDGAR, court DBs) | Soon | ||
Usage analytics for firm leadership Track which AI suggestions are accepted, rejected, and where value is being generated | |||
| Collaboration | |||
External client collaboration portal Harvey calls this Shared Spaces; Legora has a Client & Attorney Portal | Soon | ||
Only in mixus
These are the capabilities that set mixus apart — features built for legal teams who need more than a contract reviewer.
mixus remembers your firm's preferred positions, past contracts, and institutional knowledge — and applies it automatically on every review.
Every accept and reject teaches mixus your style. The AI adapts to your firm's risk tolerance and preferred language automatically.
Open any contract and mixus suggests the most relevant review questions for that specific document. No prompt engineering required.
Already negotiating? mixus preserves your existing tracked changes while adding new AI suggestions on top — without erasing prior work.
Connect to Gmail, Slack, Google Docs, and 100+ other tools directly inside your legal AI chat — no switching apps.
Forward a contract to your mixus agent. Get a redlined .docx back in your inbox. Open in Word and continue with the plugin.
Email agent@mixus.ai with a brief and get back a memo, presentation, or structured document. Harvey and Legora stay inside the contract — mixus covers the rest.
Firm leaders see which suggestions are accepted, where AI adds the most value, and how the team is using AI — so you can measure ROI.
Coming soon
We believe in being honest. Here are the features Harvey and Legora currently have that we're building toward.
Direct connections to LexisNexis, EDGAR, and national court databases for live case law.
A secure shared environment where your team and external clients can co-review documents.
Summarize email threads, draft replies, and connect email exchanges to your document library.
Translate entire Word documents with format preservation — entirely inside your Word environment.
Install mixus for Word and run your first AI-powered review in under 2 minutes. Included with all mixus plans.