NSAuditor AI vs Sirius

NSAuditor AI is an open-core network security audit platform that runs on customer infrastructure across Windows, macOS and Linux. Its agentless scans read configuration and metadata without requiring create, write, modify or delete permissions. The product supports air-gapped environments, offline licensing and zero-data-exfiltration operation. All tiers support AI analysis with OpenAI, Claude or Ollama using customer-provided API keys. Reports can be exported in formats including JSON, HTML, SARIF, CSV and Markdown, depending on edition. Pro adds offline NVD CVE matching and exploit-first prioritization using CISA KEV and FIRST EPSS data from customer-populated stores. Enterprise provides 28 cloud auditors across AWS, GCP and Azure, and maps scans to eight compliance frameworks. Community is free; Pro is listed at $39 a year or $49 a month. Enterprise plans cost $2000.00, $5000.00 or $10,000 a year. Community support is self-serve, while paid tiers add email, onboarding or dedicated support options.

Sirius is an open-source vulnerability scanner for security teams that want operator control over discovery and triage. It combines network discovery, CVE detection, agent telemetry, and scanning through Nmap and Naabu. The Vulnerability Navigator provides severity groupings, CVSS-based filters, and export options; the Operator Console supports command execution, command history, and active-agent management. Dashboards show service health, infrastructure metrics, vulnerability trends, and centralized logs. Sirius can run in production or development mode through Docker Compose. Its listed minimum requirements are Docker Engine 20.10.0+ with Compose V2, 4 GB RAM, and 10 GB of free disk space. Supported host systems are Linux, macOS, and Windows through WSL2. REST endpoints on port 9001 use an API key, with documentation linking to an API reference and Go SDK. The Sirius Scan plan is free for self-hosted Docker use. Community support is available through Discord, GitHub Issues, and GitHub Discussions; the support page also describes enterprise priority support.