Horizon3.ai NodeZero (autonomous pentesting) vs Tenable One (Hexa AI)
Quick answer
Horizon3.ai NodeZero (autonomous pentesting) (Horizon3.ai) and Tenable One (Hexa AI) (Tenable) 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 Tenable One (Hexa AI) (Tenable) are both listed in the Security category of Agent Index. They share no framework tags in our dataset. Only Tenable One (Hexa AI) is tagged for TX-RAMP.
| Field |  Horizon3.ai NodeZero (autonomous pentesting) |  Tenable One (Hexa AI) |
|---|---|---|
| Vendor | Horizon3.ai | Tenable |
| HQ | United States · North America | United States · North America |
| Primary category | Security | Security |
| Also listed in | Security | Security, Risk |
| 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. | Exposure management platform with Tenable Hexa AI agentic orchestration for vulnerability triage and remediation workflows. |
| Frameworks (vendor-stated) | — | TX-RAMP |
| Frameworks (vendor-claimed) | FedRAMP | — |
| Capabilities / tasks | pen test management, attack surface, exposure management, vulnerability management | vulnerability management, exposure management, remediation |
| Pricing (as published) | Not published | Not verified |
| Pricing model | quote | quote |
| Primary source | https://horizon3.ai/nodezero/ | https://www.tenable.com/products/tenable-one/capabilities/hexa-ai |
| Last checked | 2026-10-18 | 2026-10-18 |
| Official site | https://horizon3.ai/nodezero/ | https://www.tenable.com/products/tenable-one |
FAQ (from this dataset)
What is the difference between Horizon3.ai NodeZero and Tenable One?
Both are listed under Security. Shared tasks: exposure-management, vulnerability-management. Horizon3.ai NodeZero-only tasks: pen-test-management, attack-surface. Tenable One-only tasks: remediation. Differences are from stored category and task tags, not a ranking.
Which one publishes pricing?
Horizon3.ai NodeZero (autonomous pentesting): Not published Tenable One (Hexa AI): Not published
Where are Horizon3.ai NodeZero and Tenable One headquartered?
Horizon3.ai NodeZero (autonomous pentesting) publishes HQ in United States. Tenable One (Hexa AI) publishes HQ in United States.
Also in this use case
Other verified listings that share a task tag or use-case group with Horizon3.ai NodeZero (autonomous pentesting) or Tenable One (Hexa AI). 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.
- 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)
Related
- Horizon3.ai NodeZero (autonomous pentesting) alternatives
- Tenable One (Hexa AI) alternatives
- Best security AI agents
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