# Corelight Open NDR: how AI models rank it, October 2026

IT AI Recommendation Index, October 2026 Edition. Named in 40 judge labels across 1 categories by 14 of 14 models. Page: https://it-ai-index.com/vendors/corelight-open-ndr/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Network detection and response | 4% | 5 | 22% | 40 |

## What the models said for it

- "vendors (like Corelight) that allow you to deploy unlimited virtual sensors and charge based on enterprise-wide licensing rather than gigabyte-level "taxes"" (Gemini 3.5 Flash, NDR)
- "SMBs can leverage Corelight or Awake Security for cost-effective monitoring" (Claude Haiku 4.5, NDR)
- "Corelight (based on Zeek) or open-source Zeek are the best choices" (Mistral Small, NDR)
- "best if your team is more technical and wants an open, highly extensible network-security-monitoring approach" (GPT-5.4 mini, NDR)

## And against it

- "Corelight — commercial Zeek sensors start around $150K+/year" (DeepSeek V4 Flash, NDR)
- "For open-telemetry platforms such as Corelight buyers are warned about "Cost growth tied to throughput, sensor count, data retention, or site expansion"" (Muse Glimmer 30B, NDR)
- "It can be powerful, but it may still require more in-house skill and infrastructure than a true budget buyer wants." (GPT-5.4 mini, NDR)
- "Great if you want an open-source (Zeek) foundation, but usually requires a more mature security team to operate." (Gemini 3.5 Flash, NDR)

## In its own words

What Corelight Open NDR's own pages state, read 2026-10-05. Stated by the vendor, not checked by the index.

- Positioning: Evidence-first, open-core NDR with AI-powered detection and Agentic Triage. (https://corelight.com/)
- For: null (https://corelight.com/support/security)
- Certifications: Great Place To Work
- Customers named: Carrefour, Education First

## What it publishes

Every page corelight.com exposes, read 2026-10-05: 756 addresses. By kind, pages and the last 90 days:

- blog: 319 pages, 30 in the last 90 days, latest 2026-09-29
- conference or event: 50 pages, 0 in the last 90 days, latest 2026-03-26
- comparison: 5 pages, 1 in the last 90 days, latest 2026-08-12
- glossary or explainer: 64 pages, 7 in the last 90 days, latest 2026-09-04
- podcast or video: 23 pages, 6 in the last 90 days, latest 2026-09-24
- news or press: 69 pages, 0 in the last 90 days, latest undated
- Recent: 2026-09-29 blog: Ai agent network forensics investigation https://corelight.com/blog/ai-agent-network-forensics-investigation
- Recent: 2026-09-28 blog: Hunting citrix netscaler zero days corelight https://corelight.com/blog/hunting-citrix-netscaler-zero-days-corelight
- Recent: 2026-09-25 blog: Pqc the upgrade nobody asked for https://corelight.com/blog/pqc-the-upgrade-nobody-asked-for
- Recent: 2026-09-25 blog: Canada raises bar for critical infrastructure cybersecurity https://corelight.com/blog/canada-raises-bar-for-critical-infrastructure-cybersecurity
- Recent: 2026-09-25 blog: Natural language query https://corelight.com/blog/natural-language-query
- Recent: 2026-09-24 blog: Water system attacks securing ot https://corelight.com/blog/water-system-attacks-securing-ot

## Record

- Method: https://it-ai-index.com/methodology/
- Raw judge labels and full responses: https://it-ai-index.com/data/
- License: CC BY 4.0. Cite as IT AI Recommendation Index, October 2026 Edition, it-ai-index.com.