Horizon3.ai NodeZero (autonomous pentesting) vs Opal Paladin
Quick answer
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.
This is not a ranking.
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. |
| Frameworks (vendor-stated) | — | — |
| 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 |
FAQ (from this dataset)
What is the difference between Horizon3.ai NodeZero and Opal Paladin?
Both are listed under Security. They share no task tags in this dataset. Horizon3.ai NodeZero-only tasks: pen-test-management, attack-surface, exposure-management, vulnerability-management. Opal Paladin-only tasks: identity-governance, access-reviews. Differences are from stored category and task tags, not a ranking.
Which one publishes pricing?
Horizon3.ai NodeZero (autonomous pentesting): Not published Opal Paladin: Not published for Paladin.
Where are Horizon3.ai NodeZero and Opal Paladin headquartered?
Horizon3.ai NodeZero (autonomous pentesting) publishes HQ in United States. Opal Paladin publishes HQ in United States.
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.
- Amnify security agents (agent-driven code audit, AI pentesting, PR review and autofix pull requests) — German AppSec product from Düsseldorf: a team of agents audits repositories (SAST, secrets, SCA, IaC, CI/CD) and cloud accounts, triages signals so only confirmed findings surface, pentests running apps inside a verified scope with a separate agent reproducing every finding, reviews pull requests with a merge-blocking status check, and opens fix pull requests that run your tests but never merge themselves.
- Cakewalk Agent Cake (AI agent for SaaS access provisioning, deprovisioning and conversational access requests) — Berlin identity-governance vendor's AI agent: once access is approved under the customer's policies, Agent Cake provisions seats in supported apps on the admin's behalf, removes all accounts during offboarding, and lets employees request access conversationally in Slack, inside a platform that discovers apps and AI agents beyond SSO. · Cakewalk Agent Cake (AI agent for SaaS access provisioning, deprovisioning and conversational access requests) pair comparison
- noze CyberAgent (AI agent for continuous attack-surface monitoring, automated validation pentesting and NIS2 evidence) — Italian agent for mid-sized companies and NIS2 entities without an in-house SOC: after verifying domain control it continuously discovers assets and assesses network, web apps and APIs, correlates findings with EPSS and CISA KEV, confirms exploitability with automated validation pentests, ranks risks by business impact and prepares NIS2, DORA and ISO 27001 reports; the team decides what to fix. · noze CyberAgent (AI agent for continuous attack-surface monitoring, automated validation pentesting and NIS2 evidence) pair comparison
Use-case comparisons
- Agentic pentesting AI agents — 33 listings (Autonomous or AI-assisted penetration testing, attack-surface testing and exploitable-path verification)
- Identity governance AI agents — 8 listings (Identity governance, access reviews and Conditional Access coverage)
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