AgileBlue Cerulean Agent vs GrammaTech ARTCAT: Side-by-Side Comparison (2026)

AgileBlue Cerulean Agent

Mid-market and enterprise security teams managing hybrid infrastructure will get the most from AgileBlue Cerulean Agent because its behavioral analytics catch threats that signature-based detection misses, and the lightweight agent actually deploys without grinding endpoints to a halt. The tool covers four NIST CSF 2.0 functions across detection and incident response, with particular strength in continuous monitoring and threat analysis. Skip this if your team needs deep forensic replay or extensive third-party integrations; Cerulean Agent prioritizes real-time detection over post-incident investigation depth.

GrammaTech ARTCAT

Mid-market and enterprise teams that need to catch zero-days and unknown exploits before they spread should deploy GrammaTech ARTCAT for its behavioral runtime monitoring that works without signatures. The tool's reasoning engine automatically generates corrective actions from policy templates, letting you move from detection to mitigation in seconds rather than hours, and NIST CSF 2.0 coverage across Detect, Respond, and Protect reflects that end-to-end capability. Skip this if you're looking for a general-purpose EDR to replace your existing endpoint agent; ARTCAT is purpose-built for runtime anomaly response and works best as a specialized layer on top of your existing detection stack.