Graylog vs Splunk: SIEM Comparison (2026)

An independent side-by-side comparison of Graylog and Splunk for siem buyers — pricing, features, integrations, and how often each is cited by major AI engines.

AI Citation Scorecard

How often each vendor is cited by major AI engines when real buyers ask siem questions. Tracked across ChatGPT, Perplexity, Gemini, and Claude over the last 90 days. Methodology.

ChatGPT
Graylog: tracking…
Splunk: tracking…
Perplexity
Graylog: tracking…
Splunk: tracking…
Gemini
Graylog: tracking…
Splunk: tracking…
Claude
Graylog: tracking…
Splunk: tracking…

Probes run hourly; each (engine × query) combo retests every ~3 days. Fresh categories may show "tracking…" until probes complete.

Pricing

Graylog
Starting price
Free tier
graylog.org
Splunk
Starting price
Free tier
splunk.com

Key Features

Graylog

Feature data is being indexed.

Splunk

Feature data is being indexed.

When to choose Graylog

Choose Graylog if your team prioritizes its strengths over Splunk's. Full guidance populates as Graylog's feature data is indexed.

When to choose Splunk

Choose Splunk if your team prioritizes its strengths over Graylog's. Full guidance populates as Splunk's feature data is indexed.

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