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Log Management · Head to head

Graylog vs Splunk

Both products compete in Log Management. Log Management software ingests, indexes, stores, and makes searchable the log output of applications, infrastructure, and services — providing search, alerting, dashboards, and long-term retention for operational visibility, security investigation, and compliance archiving. Here are the facts the B4 Index maintains on each, side by side.

The two files, side by side

What it is
Open-source log management for centralized collection, search, alerting, and compliance dashboards
Splunk is the key to enterprise resilience. Our platform enables organizations around the world to prevent major issues, absorb shocks and accelerate digital transformation.
Pricing
Free Open; Enterprise from $1,250/mo
~$1,800-2,200/GB/yr ingest (Workload pricing)
Categories served
Log Management
SIEM, Log Management, Self-Service Analytics
Status
Active · verified June 2026
Active

The decision underneath the comparison

Choosing between Graylog and Splunk assumes you're buying Log Management at all. That's the prior question, and the B4 Index scores it on two axes: how much Log Management differentiates you, and how far AI has come at building it. Read the build-versus-buy considerations for Log Management before you shortlist either product.

Vendor facts are maintained independently of any B4 verdict and re-verified on a monthly liveness check. See the full methodology.