detections.ai Detections vs Leonidas: Side-by-Side Comparison (2026)

detections.ai Detections: Community platform for sharing and creating detection rules with AI. built by detections.ai. Core capabilities include Community-driven detection rule sharing platform, Detection rule discovery from GitHub, users, and vendors, Support for SIGMA, KQL, and SPL detection formats..

Leonidas: A framework for executing cloud attacker tactics, techniques, and procedures (TTPs) that can generate APIs, Sigma detection rules, and documentation from YAML-based definitions..

Both serve the Detection Engineering market but differ in approach, feature depth, and target audience.

detections.ai Detections is developed by detections.ai. Leonidas is open-source with 593 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

detections.ai Detections and Leonidas serve similar Detection Engineering use cases: both are Detection Engineering tools, both cover MITRE Attack, Detection Rules. Key differences: detections.ai Detections is Commercial while Leonidas is Free, Leonidas is open-source. Review the feature comparison above to determine which fits your requirements.