Clearbrief vs Plexus
Clearbrief
clearbrief.comPlexus
plexus.coSide by side
| Figure | Clearbrief | Plexus |
|---|---|---|
| Price from | $300/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| Plans published | 4 | 1 |
| Spec score · Legal AI Software | 9.1 (#2) | 8.0 (#10) |
| AI data use | The company says customer data is not used to train large language models and that customers can control generative-AI use. | Plexus states customer data is not used to train public AI models and that customer documents and AI context are isolated between tenants. |
| Headquarters | Seattle, Washington, United States | Melbourne, Victoria, Australia |
| Integrations | Official materials list integrations with LexisNexis, Fastcase/vLex, Relativity, iManage, NetDocuments, Clio, Reveal, MyCase 8AM, SharePoint and Box. | Plexus offers Microsoft Word and Outlook add-ins that connect contract and matter work to those applications. |
| Intended users | Clearbrief says it is used by litigators, in-house legal teams, courts, government agencies, arbitrators, and boutique firms. | Plexus describes its platform as serving in-house legal teams and business teams including marketing, operations, procurement, and sales. |
| Security | Clearbrief states it is SOC 2 Type 2 certified and that customer data is never used to train large language models. | Plexus states that its information security management system is ISO 27001:2022 certified and that it is GDPR compliant. |
| Support | Official help directs users to email [email protected] for technical support, while the guides page exposes installation guides after sign-in. | Marketing Wizard includes onboarding, training, and dedicated customer success support; the page says most teams can be configured and live within days. |
| What it does | Clearbrief is an AI legal-writing and citation-verification platform delivered inside Microsoft Word. | Plexus is an AI-powered legal platform for contract management, matter management, marketing and promotion compliance, reporting, and legal AI. |
Plans
Clearbrief
- Law studentsFree
- Law StudentsFree
- Solo$300 a month
- Enterprise UnlimitedPriced on request
In their own words
Clearbrief
Clearbrief provides AI tools for legal writing in Word, linking claims to supporting evidence through clickable citations. Its Analyze and Add Fact-Cite tools help users check claims and locate support in source documents. For trial preparation, Table Builder, timelines, and summaries can help find and organize facts across document sets. The product also offers AI-generated investigation reports with linked citations, Tables of Authorities, exhibits, and hyperlinked filings. It describes integrations with LexisNexis, Fastcase vLex, Clio, iManage, Relativity, and PACER. Clearbrief says it is SOC 2 Type 2 certified and that customer data is not used to train large language models. Organizations can use Bring Your Own Storage to keep documents in their own cloud, and customers control whether and how generative AI is used. The listed platforms are web and Windows; an MSI installer launches the Word add-in. A free plan is available for law students. Solo costs $300 a month per user, while Enterprise Unlimited has custom pricing.
Plexus
Plexus is an AI-powered legal platform for in-house legal teams and the business groups they support. It combines contract and matter management with marketing and promotion compliance, reporting and legal AI. Contract workflows cover creation, negotiation, approvals, e-signatures, and reminders for renewals and milestones. Its AI can review and summarize contracts, identify risks or missing clauses against legal playbooks and policies, and answer document questions with context and suggested next steps. Matter Management tracks legal requests from intake through execution. Marketing Compliance helps teams review creative, while Promotion Compliance can generate campaign terms and permits. Word and Outlook add-ins connect contract and matter work to those applications; the platform also describes integrations with commonly used CRM systems, e-signature providers and document repositories. Plexus states that it is ISO 27001:2022 certified and GDPR compliant. It offers a free trial with full platform access and no credit card requirement, but gives no trial duration. Pricing is available on request and scales with legal team size.