What are the key differences between OpenCTI and Tenable.io?

Compare OpenCTI and Tenable.io side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are OpenCTI and Tenable.io scored?

OpenCTI has an AI score of 8.4/10 and Tenable.io has an AI score of 10.0/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

OpenCTI vs Tenable.io 2026 - Compared

OpenCTI

Tenable.io

WINNER OpenCTI

Tenable.io edges ahead with a score of 10.0/10 compared to 8.4/10 for OpenCTI. While both are highly rated in their resp...

emoji_events WINNER

OpenCTI

8.42 Great

Cybersecurity Get OpenCTI open_in_new

Tenable.io

8.12 Great

Cybersecurity Get Tenable.io open_in_new

OpenCTI Pricing not available

payments

Tenable.io From $250/mo Free plan available

psychology AI Verdict

Tenable.io edges ahead with a score of 10.0/10 compared to 8.4/10 for OpenCTI. While both are highly rated in their respective fields, Tenable.io demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: OpenCTI

verified Confidence: Low

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description Overview

OpenCTI

OpenCTI is an open-source platform for managing and analyzing cybersecurity intelligence. It offers a graph database to store, query, and visualize threat intelligence data. Key features include customizable dashboards, real-time alerts, and integration with various security tools. Ideal for organizations needing robust threat intelligence management.

Tenable.io

Tenable.io is the industry-leading platform for vulnerability management, built on the powerful Nessus technology. It provides unparalleled visibility into the modern attack surface, including IT, OT, and cloud environments. By leveraging the Vulnerability Priority Rating (VPR), it helps teams focus on the vulnerabilities that matter most. Its extensive plugin library and deep integration with thi...