Filigran OpenCTI vs ThreatBook Advanced Threat Intelligence (ATI): Side-by-Side Comparison (2026)

Filigran OpenCTI: Open-source threat intelligence platform for organizing and operationalizing CTI. built by Filigran. Core capabilities include STIX 2.1 data model for threat intelligence structuring, Knowledge hypergraph with visual graphs and timelines, MITRE ATT&CK framework mapping..

ThreatBook Advanced Threat Intelligence (ATI): Enterprise threat intelligence platform with APAC focus and adversary tracking. built by ThreatBook. Core capabilities include APT and cybercrime group profiling with TTPs and infrastructure mapping, Vulnerability intelligence covering 400K+ vulnerabilities with risk scoring, Daily malware analysis of 2M+ files with YARA detection rules..

Both serve the Threat Intel Platforms market but differ in approach, feature depth, and target audience.

Filigran OpenCTI differentiates with STIX 2.1 data model for threat intelligence structuring, Knowledge hypergraph with visual graphs and timelines, MITRE ATT&CK framework mapping. ThreatBook Advanced Threat Intelligence (ATI) differentiates with APT and cybercrime group profiling with TTPs and infrastructure mapping, Vulnerability intelligence covering 400K+ vulnerabilities with risk scoring, Daily malware analysis of 2M+ files with YARA detection rules.

Filigran OpenCTI is developed by Filigran. ThreatBook Advanced Threat Intelligence (ATI) is developed by ThreatBook. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Filigran OpenCTI and ThreatBook Advanced Threat Intelligence (ATI) serve similar Threat Intel Platforms use cases: both are Threat Intel Platforms tools, both cover MITRE Attack, STIX, Cyber Threat Intelligence. Review the feature comparison above to determine which fits your requirements.