SOAR vs SIEM 2026: Cost, Capability, and Why You Probably Need Both
SIEM aggregates and correlates logs. SOAR automates the response. They sit at different layers of the SOC and they cost different things. Most mature SOCs end up owning both.
Plain-English functional difference
SIEM is the SOC's long-term memory: every log, every alert, every correlation rule. SOAR is the SOC's reflex arc: take an alert, enrich it, decide, act. SIEM tells you what happened. SOAR makes something happen.
“The biggest SOAR ROI mistake is treating it as a SIEM replacement. It is an upgrade to the analyst's response time, not to the detection itself.”
Cost comparison at three SOC sizes
Each envelope is annual and includes the licence and direct implementation cost. Both layers carry shared SOC overhead (integrations, training, analyst headcount) which we do not double-count here.
Both typically free-tier or open-source at this size.
SIEM is typically the larger line item; SOAR catches up at the upper end.
Both six and seven-figure. Bundle discounts dominate.
SIEM envelopes are derived from sister-site siemcostcalculator.com. (Illustrative bands, not vendor-quoted.)
When SIEM-only is enough
- Compliance-driven SOC: the audit need is log retention and queryable correlation, not response speed.
- Mature SOC with low alert volume: analysts already triage every alert by hand with acceptable MTTR.
- Single-vendor stack where the SIEM already includes basic response workflow (Microsoft Sentinel, Chronicle SecOps bundles).
When you need SOAR on top
- Alert volume is overwhelming analysts and MTTR is degrading.
- Repeatable playbook work (phishing triage, IOC enrichment, user offboarding) is eating analyst hours.
- Multi-vendor stack where each tool has its own API and no single SIEM can drive response across all of them.
- Identity-revocation and credential-rotation workflows that need to execute in seconds, not minutes.
SIEM + SOAR bundles
Splunk ES + Splunk SOAR
Native bidirectional integration. Bundle pricing increasingly Cisco-owned post Mar 2024 acquisition.
Chronicle SIEM + Chronicle SOAR
Sold inside Google SecOps. The SOAR rarely sells standalone now.
QRadar SIEM + QRadar SOAR
Diverging paths since Palo Alto bought the QRadar SaaS assets Sep 2024.
Across the SOC stack
The sister sites with verified pricing for the layers around SOAR.