Microsoft Sentinel vs Splunk: SIEM Comparison (2026)

An independent side-by-side comparison of Microsoft Sentinel 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
Microsoft Sentinel: tracking…
Splunk: tracking…
Perplexity
Microsoft Sentinel: tracking…
Splunk: tracking…
Gemini
Microsoft Sentinel: tracking…
Splunk: tracking…
Claude
Microsoft Sentinel: tracking…
Splunk: tracking…

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

Pricing

Microsoft Sentinel
Starting price
Free tier
microsoft.com
Splunk
Starting price
Free tier
splunk.com

Key Features

Microsoft Sentinel

Feature data is being indexed.

Splunk

Feature data is being indexed.

When to choose Microsoft Sentinel

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

When to choose Splunk

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

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