Horizon3.ai NodeZero (autonomous pentesting) vs Simbian AI Pentest Agent
Horizon3.ai NodeZero (autonomous pentesting) (Horizon3.ai) and Simbian AI Pentest Agent (Simbian) are both listed in the Security category of Agent Index. They share no framework tags in our dataset.
| Field |  Horizon3.ai NodeZero (autonomous pentesting) |  Simbian AI Pentest Agent |
|---|---|---|
| Vendor | Horizon3.ai | Simbian |
| HQ | United States · North America | United States · North America |
| Primary category | Security | Security |
| Also listed in | Security | Security |
| Summary | Autonomous pentesting platform that runs unlimited self-directed internal, external, cloud, Kubernetes and AD pentests, plans attack paths, guides remediation and re-tests to verify fixes. | An autonomous AI agent for on-demand, ongoing penetration testing that adapts its testing logic in real time and focuses findings on each customer's business context, developed with LRQA's pentesting methodology. |
| Framework tags (Agent Index) | — | — |
| Frameworks (vendor-claimed) | FedRAMP | — |
| Capabilities / tasks | pen test management, attack surface, exposure management, vulnerability management | pen test management, attack surface, vulnerability management, exposure management |
| Pricing (as published) | Not published | Published on simbian.ai/ai-pentest-agent: Standard $4,000 per pentest; Premium $8,000 per pentest; Custom by quote. Vendor page says up to five retests are included. Deployment modes in the launch release: SaaS, Dedicated SaaS and on-premises. |
| Pricing model | quote | published-tiers |
| Primary source | https://horizon3.ai/nodezero/ | https://simbian.ai/ai-pentest-agent |
| Last checked | 2026-10-18 | 2026-10-18 |
| Official site | https://horizon3.ai/nodezero/ | https://simbian.ai/ai-pentest-agent |
Side-by-side data is generated from the open dataset. “Vendor-claimed” frameworks are as marketed by each vendor and not verified by Agent Index; framework tags indicate relevance, not certification. Request current quotes from each vendor before buying. This page does not rank or score vendors. Sponsored comparisons, if any, will be labelled.
Use-case comparisons
- Agentic pentesting AI agents — 13 listings (Autonomous or AI-assisted penetration testing, attack-surface testing and exploitable-path verification)
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