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Casetext CoCounsel vs PromptArmor
A side-by-side comparison of pricing, ratings, features, pros and cons.
| Overview | |||
| Description | Thomson Reuters' AI legal assistant for research, drafting, document review, and deposition prep β sold as an add-on to Westlaw and Practical Law subscriptions. | AI risk intelligence platform that assesses and continuously monitors third-party AI vendors for enterprise security teams. | |
| Category | |||
| Developer | Casetext | PromptArmor | |
| Verified Status | No | ||
| Last Updated | Aug 2026 | Aug 2026 | |
| Pricing | |||
| Pricing Model | Paid | Freemium | |
| Free Plan | No | No | |
| Free Trial | β | No | |
| Open Source | No | No | |
| Capabilities | |||
| API Access | β | No | |
| Features | β’ AI-assisted legal research with citation accuracy focus β’ Contract analysis and document review β’ Deposition preparation support β’ Deep Research mode (added August 2025) β’ Integration across Westlaw, Practical Law, and Microsoft 365 β’ Sold as an add-on to Westlaw/Practical Law subscriptions | β’ AI vendor risk scoring against NIST AI RMF and OWASP LLM Top 10 β’ Continuous monitoring across 26 risk vectors β’ Indirect prompt injection and data exposure detection β’ Role-based access control and SSO β’ API integration for enterprise workflows β’ 5 free vendor assessments before enterprise pricing | |
| Tags | legal-researchcasesanalysis | ai-risk-managementvendor-securitythird-party-riskprompt-injection-detectionenterprise-security | |
| Trust and Engagement | |||
| Review Count | 0 | 0 | |
| Saves | 0 | 0 | |
| Views | 65 | 6 | |
| Quality Score | 53/100 | 37/100 | |
| Website Status | Online | Online | |
| Availability | |||
| Website | casetext.com | promptarmor.com | |
| Social Links | 3 linked | 2 linked | |
| Screenshots | No | No | |
| Reviews | |||
| Pros | β | β’ Free to use | |
| Cons | β’ No free tier available | β | |
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