SIEM Pricing Comparison 2026: Splunk vs Sentinel vs QRadar vs Elastic
SIEM is 20-30% of your total SOC cost. Nobody else compares vendor pricing in the context of total security operations budget. Here is the full picture.
Vendor Comparison
| Feature | Splunk | Microsoft Sentinel | IBM QRadar | Elastic |
|---|---|---|---|---|
| Pricing Model | Ingest-based ($/GB/day) or workload | Consumption ($/GB), free M365 ingest | EPS-based (events/second) | Open-source + commercial tiers |
| Cost at 50GB/day | $55K - $75K/yr | $30K - $45K/yr | $10K - $30K/yr | $0 - $25K/yr |
| Cost at 100GB/day | $110K - $150K/yr | $55K - $85K/yr | $30K - $60K/yr | $15K - $50K/yr |
| Cost at 500GB/day | $500K - $750K/yr | $200K - $350K/yr | $100K - $200K/yr | $60K - $150K/yr |
| Deployment | Cloud, on-prem, hybrid | Azure cloud only | On-prem, IBM Cloud | Cloud, on-prem, hybrid |
| FTEs to Operate | 1-2 (dedicated admin) | 0.5-1 (M365 integrated) | 1-2 (QRadar specialists) | 1-2 (ELK expertise) |
| Strengths | Most powerful search, huge ecosystem | Free M365 data, Azure integration | Strong compliance, on-prem | Open-source, flexible, cost-effective |
| Weaknesses | Most expensive at scale | Azure lock-in | Declining market share | Complex to manage at scale |
Pricing Model Deep Dive
Splunk
$150+/GB/day ingest-based
The industry standard with the most powerful search language (SPL). Splunk offers ingest-based pricing at $150+/GB/day, or workload pricing that decouples cost from data volume. Workload pricing can reduce costs by 30-50% for organizations that ingest large volumes but run fewer searches.
Total cost of ownership: Add $120K-$180K/year for a dedicated Splunk admin. Training costs $3K-$8K per person. Splunk certifications are effectively required for efficient operation.
Microsoft Sentinel
$5.22/GB consumption + free M365 data
Best value for Microsoft shops. M365 security data (Entra ID, Defender, Office 365) is ingested for free, which can represent 40-60% of total log volume for Microsoft-heavy environments. Data Lake tier offers 85% discount for cold storage of compliance logs.
Forrester study: 234% ROI and 44% cost reduction for organizations migrating to Sentinel from legacy SIEM, with payback in under 6 months.
IBM QRadar
EPS-based starting at $10K/yr
Priced by events per second (EPS) rather than data volume. This benefits organizations with many small events (authentication logs, network flows) where per-GB pricing would be expensive. Strong compliance features for regulated industries.
Consideration: IBM shifted strategic focus to QRadar Suite on Cloud Pak. On-prem QRadar has declining market share. Factor in potential migration costs within 3-5 years.
Elastic Security
Open-source base + cloud consumption
The most cost-effective option for organizations with strong engineering talent. The open-source ELK stack (Elasticsearch, Logstash, Kibana) is free. Commercial features (ML anomaly detection, case management, managed cloud) are available via Elastic Cloud at consumption-based pricing.
Hidden cost: Elastic requires significant engineering effort to deploy and maintain at scale. Budget 1-2 dedicated FTEs ($110K-$160K/yr each) for a production deployment.
SIEM Selection by Organization Profile
Microsoft shop (M365, Azure AD, Defender)
Microsoft Sentinel
Free M365 ingestion saves 40-60% on data costs. Native integration with your existing security stack.
AWS-primary infrastructure
Elastic or Splunk Cloud
Both deploy natively on AWS. Elastic is more cost-effective; Splunk has a deeper feature set.
On-prem compliance requirements
IBM QRadar or Elastic
Both support full on-premises deployment. QRadar has stronger out-of-box compliance reporting.
Budget-constrained startup
Elastic (open-source)
Free base + community support. Requires engineering talent but eliminates licensing cost.
SOAR and XDR Add-On Costs
| Platform | Type | Annual Cost | Pairs With |
|---|---|---|---|
| Splunk SOAR | SOAR | $50K - $150K | Splunk Enterprise/Cloud |
| Palo Alto XSOAR | SOAR | $75K - $200K | Vendor-agnostic |
| Swimlane | SOAR | $50K - $125K | Vendor-agnostic |
| Microsoft Sentinel SOAR | SOAR | Included (Logic Apps pricing) | Microsoft Sentinel |
| CrowdStrike Falcon XDR | XDR | $30 - $60/endpoint/yr | CrowdStrike ecosystem |
| SentinelOne Singularity XDR | XDR | $25 - $50/endpoint/yr | SentinelOne ecosystem |
Related Pages
Updated 11 April 2026. Pricing from vendor websites, Forrester TEI studies, and Gartner estimates.