Datadog Cloud SIEM vs OpenSOC: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Datadog Cloud SIEM is a commercial security information and event management tool by Datadog. OpenSOC is a free security information and event management tool. Compare features, ratings, integrations, and community reviews side by side to find the best security information and event management fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Security teams already running Datadog for infrastructure and application observability should adopt Cloud SIEM to correlate security events with the underlying systems generating them; this eliminates the blind spot of traditional SIEMs that ingest logs in isolation. The platform covers continuous monitoring and incident response (NIST DE.CM and RS.MA), with multi-cloud log ingestion across AWS, Azure, and GCP built in rather than bolted on. Skip this if your priority is forensic depth or compliance reporting; Cloud SIEM is built for detection speed and operational context, not exhaustive audit trails.
Security teams with the budget to staff a dedicated platform engineering effort should consider OpenSOC if they need a detection pipeline that scales to petabyte volumes without vendor lock-in. Its architecture stacks Kafka, Spark, and Elasticsearch to handle data ingestion and correlation at a fraction of commercial SIEM pricing, though the 582 GitHub stars indicate a smaller community than enterprise alternatives. Skip this if your team lacks DevOps capacity to manage infrastructure; OpenSOC demands engineering lift that proprietary SIEMs abstract away.
