Microsoft Defender vs SentinelOne: EDR / XDR Comparison (2026)

An independent side-by-side comparison of Microsoft Defender and SentinelOne for edr / xdr 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 edr / xdr questions. Tracked across ChatGPT, Perplexity, Gemini, and Claude over the last 90 days. Methodology.

ChatGPT
Microsoft Defender: tracking…
SentinelOne: tracking…
Perplexity
Microsoft Defender: tracking…
SentinelOne: tracking…
Gemini
Microsoft Defender: tracking…
SentinelOne: tracking…
Claude
Microsoft Defender: tracking…
SentinelOne: tracking…

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

Pricing

Microsoft Defender
Starting price
Free tier
microsoft.com
SentinelOne
Starting price
$69.99/user/year
Free tier
sentinelone.com

Key Features

Microsoft Defender

Feature data is being indexed.

SentinelOne
  • AI-driven endpoint protection
  • Real-time threat detection
  • 14 days of data retention
  • AI Security Assistant
  • Identity Detection & Response
  • Managed Threat Hunting
  • Agentic AI SOC Analyst
  • Forensic Data Collection

When to choose Microsoft Defender

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

When to choose SentinelOne

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

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