Nucleus Security vs Tenable: Vulnerability Management Comparison (2026)

Nucleus Security and Tenable both offer vulnerability management platforms. Nucleus Security focuses on scalable and automated vulnerability management with extensive integrations and AI-powered threat intelligence, while Tenable provides cloud-based vulnerability management with a focus on asset tracking, web app scanning, and AI-powered exposure management.

AI Citation Scorecard

How often each is cited by major AI engines when buyers ask vulnerability management questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.

Tenable leads overall67% cited vs Nucleus Security 0% across 60 probes.
ChatGPT
Nucleus Security
0 / 6 probes
0%
Invisible
TenableLeads
6 / 6 probes
100%
Excellent
Perplexity
Nucleus Security
0 / 6 probes
0%
Invisible
TenableLeads
6 / 6 probes
100%
Excellent
Gemini
Nucleus Security
0 / 6 probes
0%
Invisible
TenableLeads
2 / 6 probes
33%
Good
Claude
Nucleus Security
0 / 6 probes
0%
Invisible
TenableLeads
6 / 6 probes
100%
Excellent
Copilot
Nucleus Security
0 / 6 probes
0%
Invisible
Tenable
0 / 6 probes
0%
Invisible
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

Pricing

Nucleus Security
Starting price
Free tier
nucleussec.com
Tenable
Starting price
$3,700/1 Year
Free tier
Yes
tenable.com

Key Features

Nucleus Security
  • Scale and automate vulnerability management
  • Centralized vulnerability intelligence
  • AI-powered threat intelligence
  • 200+ integrations
  • Asset data unification
  • Compliance framework alignment
  • Automated remediation workflows
  • Natural language interaction with data
Tenable
  • Cloud-based vulnerability management
  • Track assets with unmatched accuracy
  • Includes web app scanning
  • AI-powered exposure management

When to choose Nucleus Security

Nucleus Security is suitable for organizations requiring a highly integrative and automated vulnerability management solution with centralized vulnerability and AI-powered threat intelligence, and natural language interaction with data. It also offers automated remediation workflows and compliance framework alignment.

When to choose Tenable

Tenable is suitable for organizations prioritizing cloud-based vulnerability management with comprehensive asset tracking and web application scanning capabilities. It includes AI-powered exposure management and a user-friendly interface for quick setup.

Frequently Asked Questions

What are the key features of Nucleus Security?
Nucleus Security offers features such as scaling and automating vulnerability management, centralized vulnerability intelligence, AI-powered threat intelligence, over 200 integrations, asset data unification, compliance framework alignment, automated remediation workflows, and natural language interaction with data.
What are the key features of Tenable?
Tenable provides cloud-based vulnerability management, accurate asset tracking, web application scanning, and AI-powered exposure management.
Does Nucleus Security offer a free tier?
Nucleus Security does not publicly list a free tier.
Does Tenable offer a free tier?
Yes, Tenable offers a free tier.
What is the starting price for Nucleus Security?
Nucleus Security's pricing details are not publicly available.

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