mixus
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Email-based · Word-native · attorney-in-the-loop

AI agents
we can trust.

Attorneys work in email and Word. So does mixus. Email your agent, CC anyone who needs to review, and get back work product. All with firm-level oversight.

Book a demoSee the platform

Trusted by Am Law 10 firms.

How it works

The agent does the work.
Attorneys approve it.

  • 01 / Email

    Send work by email.

    Forward the matter. CC reviewers. The agent works in the same thread.

  • 02 / Output

    Get work product back.

    Redlines, drafts, analysis, and spreadsheets return as reviewable files.

  • 03 / Review

    Review & approve.

    Attorneys review changes, issues, and citations.

  • 04 / Playbooks

    mixus learns from your decisions.

    Accept, edit, and dismiss decisions improve future runs.

The Platform

Your past work generates
the playbook.

Instead of starting each matter from a blank prompt, mixus starts from the way your firm already works: prior deals, approved language, and reviewer decisions.

01 / Playbooks

Playbooks capture how your firm reviews work.

Each playbook can be scoped by client, contract type, or practice area. It stores preferred language, fallback positions, terms to flag, and the reviewer approvals behind them.

PlaybookMSA v3.1 · Lumengrid

§ 4.2 Limitation of Liability

Starting position2× annual fees, with $2.5M floor for enterprise customers.
Fallback1.5× annual fees with $1.5M floor; escalate to senior reviewer if counterparty refuses.
UnacceptableAny cap below $1M · mutual exclusions of indirect damages without carve-outs.
Versioned · 14 rules · Last edited by M. Hartwell · 03 Apr
02 / Review decisions

Every review improves
the next run.

When attorneys accept, edit, or dismiss suggestions, mixus learns the firm's preferred position. Repeated patterns become proposed rules for attorneys to review and approve.

Reviewer decisions28 days
↑ Accepted · §4.2 liability fallback
✎ Edited · §7 IP assignment carve-out
↑ Accepted · §4.2 liability fallback
× Dismissed · §12 audit rights
↑ Accepted · §4.2 liability fallback
✎ Edited · §9 termination notice
Proposed ruleBased on 14 prior reviews

“In enterprise MSAs, always propose liability caps at ≥ 2× annual fees with a $2.5M floor, and preserve carve-outs for gross negligence, willful misconduct, and Section 8 indemnification. Fallback: 1.5× / $1.5M.”

Rule MSA-LIAB-021 · proposed by mixus, approved by M. Hartwell
03 / Firm memory

Your firm's standards,
carry forward.

mixus remembers what your attorneys approved. Similar matters start with your existing positions already applied — no setup required.

Firm-approved positions4 playbooks · 218 rules · v.2026.04
  • PB·001MSA Redline: Enterprise63 rules · reviewedv3.1 · 03 Apr
  • PB·002NDA Redline: Disclosing Party41 rules · reviewedv2.4 · 28 Mar
  • PB·003Series A Pro Forma74 rules · reviewedv1.9 · 12 Mar
  • PB·004M&A Waterfall: Participating Pref.40 rules · reviewedv1.2 · 04 Mar

“We wouldn’t use agents unless we could stand behind every outcome. mixus gives us the oversight and visibility we need to trust agents with real client work.”

Adam Forest
Adam Forest
Founding Partner, Scale LLP
Practices

Work returns
ready to review.

P / 01AI Redline

Review contract changes faster.

Contract markups return with track changes, a cited reason for every change, and a full issues list.

  • Track changes
  • Reason for every change
  • Issues list
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P / 02Deal Modeling

Models return with live formulas.

Cap tables, M&A waterfalls, down rounds, and bespoke structures return as Excel files with live formulas — ready to edit.

  • Real .xlsx with live formulas
  • Ready in under 15 minutes
  • Learns from your prior models
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P / 03Word Add-in

Use mixus where you already draft.

The Word add-in brings mixus into Microsoft Word, so attorneys can accept, edit, or dismiss suggestions without changing tools.

  • Microsoft Word add-in
  • Accept / edit / dismiss in place
  • No context switching
Open page
Getting started

Start with one
legal workflow.

01Workflow

Choose one workflow.

Pick a repeatable task: redlines, diligence, deal models, data extraction, or anything your team handles often.

02Playbook

Build from examples.

Your past agreements or models build the starting playbook. Your reviewers edit and approve it.

03Go live

Review real output.

Attorneys approve the work before it becomes a standard. Each review improves the next run.

Trust & governance

Enterprise grade
security.

Learn how data is protected, encrypted, retained, and handled by model providers.

Visit trust.mixus.ai
  • 01SOC 2 Type II · annual
  • 02ISO 27001:2022
  • 03GDPR and HIPAA
  • 04TLS 1.3 in transit · AES-256 at rest
  • 05Customer-managed keys (BYOK)
  • 06Zero data retention by model provider

Book a demo

mixus adapts to your
workflows.

See how mixus fits your firm's existing workflows.

Book a demo