OpusLaw

C
C tier on Legal AI SoftwareScore 6.3 · #7 of 34
Android app
Not listed
Free plan
No
Paid plans from
$9.99/mo
Runs on
Web
opuslaw.org
The OpusLaw homepage

Summary

OpusLaw is a web-based legal AI workspace for research, analysis, drafting, and practice management across jurisdictions. It searches statutes, regulations, and case law and produces jurisdiction-aware drafts with citations. Its contract analysis identifies risk clauses and inconsistencies and suggests redlines. The site says Carta AI answers in 25 languages, while its FAQ says it can draft in over 50 languages. The FAQ also describes integrations with common practice management and document management platforms, with custom enterprise integrations for specific workflows. OpusLaw says data is encrypted in transit and at rest, confidential data is not used to train its AI, and matters remain isolated. It also says data residency options are available and cross-border transfer requires explicit consent and an appropriate legal basis. The service has a free plan. Paid monthly plans listed are Carta Actus at 9.99 USD per month, Carta Corpus at 29.99 USD per month, Carta Magistra at 79.99 USD per month, and Carta Suprema at 149.99 USD per month. OpusLaw advises treating AI output as a first draft or research aid, with attorney review beneficial for bespoke drafting.

Who it is for

OpusLaw is aimed at legal professionals, including law firms, solo attorneys, in-house counsel, and litigation users. It may suit practitioners seeking research, drafting, contract analysis, and matter workspace tools in one web service.

What is good

  • Searches statutes, regulations, and case law.
  • Drafts include citations.
  • Contract analysis suggests redlines.
  • Data is encrypted in transit and at rest.
  • A free plan is available.

What to know first

  • AI output should be treated as a first draft or research aid.
  • Bespoke drafting benefits from attorney review.
  • OpusLaw says security certifications are still being pursued.

Verdict

OpusLaw combines legal research and drafting with contract analysis and practice management tools. Its own guidance calls for treating generated material as assistance rather than final work, particularly for bespoke drafting.

OpusLaw plans and pricing

All plans
Carta Actus $9.99/mo $9.99/mo 300 messages/month · 10 TTS uses/month · 7 Practice Hub tools · Email support opuslaw.org · 30 Sept 2026
Carta Corpus $29.99/mo $29.99/mo 750 messages/month · 30 TTS uses/month · 17 Practice Hub tools · Priority support opuslaw.org · 30 Sept 2026
Carta Magistra $79.99/mo $79.99/mo 1,500 messages/month · 80 TTS uses/month · 30 Practice Hub tools · Priority support opuslaw.org · 30 Sept 2026
Carta Suprema $149.99/mo $149.99/mo Unlimited messages · Unlimited TTS · All 30 tools · Dedicated support opuslaw.org · 30 Sept 2026

Compared on legal AI software

Free plan
Yesopuslaw.org
Primary use
general legalopuslaw.org
Legal source access
Yesopuslaw.org
Document analysis
Yesopuslaw.org
Source citations
Yesopuslaw.org
Legal drafting tools
Yesopuslaw.org
Matter workspace
Yesopuslaw.org
Supported platforms
webopuslaw.org

Facts

Product
OpusLaw provides legal AI for research, analysis, drafting, and practice management across jurisdictions.opuslaw.org · 30 Sept 2026
Workspace
The site describes an AI legal workspace with purpose-built tools for research, drafting, and practice management.opuslaw.org · 30 Sept 2026
Research and drafting
The platform searches statutes, regulations, and case law and produces jurisdiction-aware, citation-ready drafts.opuslaw.org · 30 Sept 2026
Contract analysis
Contract analysis surfaces risk clauses and inconsistencies and suggests redlines.opuslaw.org · 30 Sept 2026
Languages
The homepage says Carta AI provides answers across 25 languages, while the FAQ says it can draft in over 50 languages.opuslaw.org · 30 Sept 2026
Integrations
The FAQ says Carta AI integrates with common practice management and document management platforms, with enterprise integrations for custom workflows.opuslaw.org · 30 Sept 2026
Security
OpusLaw says data is encrypted in transit and at rest, confidential data is not used to train its AI, and matters remain isolated.opuslaw.org · 30 Sept 2026
Certifications
The FAQ says OpusLaw is pursuing industry security certifications as it grows.opuslaw.org · 30 Sept 2026
Data residency
The FAQ says data residency options are available and data is not transferred across borders without explicit consent and an appropriate legal basis.opuslaw.org · 30 Sept 2026
Support
Listed plan support ranges from email and priority support to dedicated support; the about page says every subscriber receives support.opuslaw.org · 30 Sept 2026
Intended users
OpusLaw describes its tools as designed for legal professionals and highlights law firms, solo attorneys, in-house counsel, and litigation users.opuslaw.org · 30 Sept 2026
Review limitation
The FAQ says AI output should be treated as a first draft or research assistant and that bespoke drafting benefits from attorney review.opuslaw.org · 30 Sept 2026

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