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 is cited by major AI engines when buyers ask edr / xdr questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.

Too early to call — probes still building data.
ChatGPT
Microsoft Defender
Tracking…
No data yet
SentinelOne
Tracking…
No data yet
Perplexity
Microsoft Defender
0 / 1 probes
0%
Invisible
SentinelOneLeads
1 / 1 probes
100%
Excellent
Gemini
Microsoft Defender
Tracking…
No data yet
SentinelOne
Tracking…
No data yet
Claude
Microsoft Defender
Tracking…
No data yet
SentinelOne
Tracking…
No data yet
Copilot
Microsoft Defender
Tracking…
No data yet
SentinelOne
Tracking…
No data yet
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

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.

AI visibility profiles

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Microsoft Defender

microsoft.com

SentinelOne

sentinelone.com

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We ask the buyer questions in this market across ChatGPT, Claude, Gemini, Perplexity and Copilot, and show you who gets named.

More EDR / XDR Comparisons