Horizon3.ai NodeZero (autonomous pentesting) vs Opal Paladin
Horizon3.ai NodeZero (autonomous pentesting) (Horizon3.ai) and Opal Paladin (Opal Security) are both listed in the Security category of Agent Index. They share no framework tags in our dataset.
| Field |  Horizon3.ai NodeZero (autonomous pentesting) |  Opal Paladin |
|---|---|---|
| Vendor | Horizon3.ai | Opal Security |
| 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. | AI identity agent in Opal that reviews access requests, investigates context and approves, denies or escalates with recorded reasoning. |
| Framework tags (Agent Index) | — | — |
| Frameworks (vendor-claimed) | FedRAMP | — |
| Capabilities / tasks | pen test management, attack surface, exposure management, vulnerability management | identity governance, access reviews |
| Pricing (as published) | Not published | Not published for Paladin. |
| Pricing model | quote | quote |
| Primary source | https://horizon3.ai/nodezero/ | https://docs.opal.dev/docs/paladin/access-request |
| Last checked | 2026-10-18 | 2026-10-18 |
| Official site | https://horizon3.ai/nodezero/ | https://docs.opal.dev/docs/paladin/access-request |
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.
Also in this use case
Other verified listings that share a task tag or use-case group with Horizon3.ai NodeZero (autonomous pentesting) or Opal Paladin. Open a pair page or the use-case table — this is not a ranking.
- Aikido Attack AI Pentesting — Belgian autonomous AI pentest: many agents map the app, test attack paths and re-exploit each finding to confirm it, with a same-day audit-grade report. · Aikido Attack AI Pentesting pair comparison
- Synack Sara AI Pentesting — Synack's Autonomous Red Agent (Sara) for agentic pentesting, with exploitable findings validated by the Synack Red Team. · Synack Sara AI Pentesting pair comparison
Use-case comparisons
- Agentic pentesting AI agents — 12 listings (Autonomous or AI-assisted penetration testing, attack-surface testing and exploitable-path verification)
- Identity governance AI agents — 3 listings (Identity governance, access reviews and Conditional Access coverage)
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