CYMETRIS vs ThreatModeler Nexus

CYMETRIS is a cyber risk analysis and TARA platform for work across a product lifecycle. Its guided workflow follows ISO/SAE 21434 and applies automated consistency and logic checks. Teams can inspect attack paths interactively and map risks to components in system architecture, with risk prioritization, collaborative review, templates, frameworks, and multiple modeling methods. CYMETRIS Lite generates audit-ready reports for ISO/SAE 21434 and UN R155. The maker describes AI assistance through MCP for importing architectures, identifying assets, developing attack vectors, and querying TARA datasets in natural language. A public API is intended to connect requirements, architecture, PLM, ticketing, ALM, and reporting systems. Vulnerabilities can be imported from CVE databases, vendor advisories, or internal analyses and mapped to affected components; this capability is described as a selected-customer prototype. Access is available through web, API, or self-hosted deployment. Lite costs €99.00 per month, includes one full TARA project, and allows up to five active projects.

ThreatModeler Nexus is an agentic platform for secure design and governed threat modeling across applications, cloud and hybrid architectures, devices, and operational technology. Its Secure Design Graph connects architectures, threats, controls, compliance requirements, and security decisions. System Mapping, Graph, and Reporting agents operate on that graph. Supported methods include STRIDE, PASTA, and CSA MAESTRO for agentic systems, and findings map to more than 180 regulatory and security frameworks, including NIST, ISO 27001, PCI DSS, HIPAA, DORA, and the EU AI Act. A built-in MCP Server checks pull requests and commits against the current threat model and returns threats, requirements, and mitigations in developer workflows. Integrations include infrastructure tools, cloud providers, code platforms, ServiceNow, and ArmorCode. Customers can connect their own AI model, with a deterministic framework governing output. Web, API, and self-hosted environments are listed. A free Community Edition is available; the ThreatModeler license costs $4,000 a year on a 12-month contract. Additional AWS infrastructure costs may apply.