# Corelight Open NDR vs ExtraHop RevealX: which do AI models recommend for NDR, October 2026

IT AI Recommendation Index, October 2026 Edition, Network detection and response. Zero of fourteen models named Corelight Open NDR first on the direct prompt; two named ExtraHop RevealX. Page: https://it-ai-index.com/security/network-detection-and-response/corelight-open-ndr-vs-extrahop-revealx/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Corelight Open NDR | 4% | #4 of 9 | 22% | 40 | 14 of 14 |
| ExtraHop RevealX | 4% | #6 of 9 | 15% | 26 | 12 of 14 |

## The direct prompt, model by model

- GPT-5.4 mini: extrahop revealx first (first choices: ExtraHop RevealX, Vectra AI) (alternatives: Corelight Open NDR, Darktrace)
- Qwen 3.7 Flash: extrahop revealx first (first choices: ExtraHop RevealX) (alternatives: Cisco Secure Network Analytics, Darktrace, Vectra Cognito)
- Perplexity Sonar: neither first, one named (first choices: Vectra AI) (alternatives: Corelight Open NDR, Darktrace, ExtraHop Reveal)
- GLM 4.7 FlashX: neither first, one named (first choices: Darktrace) (alternatives: Cisco Secure Network Analytics, Corelight Open NDR, ExtraHop Reveal, FortiNDR, Vectra AI)
- MiniMax M2.5: neither first, one named (first choices: ExtraHop Reveal, Vectra AI) (alternatives: Arista Awake Security, Corelight Open NDR)
- GPT-6 Luna: neither first, one named (first choices: Vectra AI) (alternatives: Corelight Open NDR, ExtraHop RevealX)
- Claude Haiku 4.5: neither named (first choices: Darktrace) (alternatives: ExtraHop Reveal, Vectra AI)
- Gemini 3.5 Flash: neither named (first choices: Vectra AI Platform) (alternatives: Darktrace, ExtraHop Reveal, Stellar Cyber Open XDR)
- Grok 4.1 Fast: neither named (first choices: Vectra AI) (alternatives: Darktrace, ExtraHop (Reveal(x) or now part of Blend))
- Mistral Small: neither named (first choices: ExtraHop Reveal, Vectra AI Platform) (alternatives: Darktrace)
- DeepSeek V4 Flash: neither named (first choices: Vectra AI) (alternatives: CrowdStrike Falcon Insight, ExtraHop Reveal)
- Llama 4 Maverick: neither named (first choices: Gatewatcher AIonIQ) (alternatives: LMNTRIX)
- Kimi K2: neither named (first choices: Vectra AI) (alternatives: Arista NDR, ExtraHop Reveal, Stamus Networks Clear NDR)
- Muse Glimmer 30B: neither named (first choices: Gatewatcher AIonIQ) (alternatives: Alert Logic Cloud Insight, CrowdStrike Falcon Insight, SentinelOne Singularity)

## What the models said about Corelight Open NDR

- "Corelight — commercial Zeek sensors start around $150K+/year" (DeepSeek V4 Flash, budget prompt, hard negative)
- "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, negative prompt, soft negative)
- "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, budget prompt, soft negative)
- "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, negative prompt, first choice)
- "SMBs can leverage Corelight or Awake Security for cost-effective monitoring" (Claude Haiku 4.5, budget prompt, first choice)
- "Corelight (based on Zeek) or open-source Zeek are the best choices" (Mistral Small, budget prompt, first choice)

## What the models said about ExtraHop RevealX

- "Options to Avoid on a Tight Budget - Darktrace, Vectra AI, ExtraHop" (DeepSeek V4 Flash, budget prompt, hard negative)
- "Licensing complexity (based on Discovered Devices); can generate high alert volumes" (MiniMax M2.5, negative prompt, soft negative)
- "commercial options like Vectra AI, Darktrace, or ExtraHop ($50K–$500K+/year)" (Grok 4.1 Fast, budget prompt, soft negative)
- "The Overall Industry Leader: ExtraHop RevealX ... named a Leader in the very first Gartner Magic Quadrant" (Qwen 3.7 Flash, direct prompt, first choice)
- "ExtraHop if your main need is excellent network visibility and fast investigations." (GPT-5.4 mini, direct prompt, first choice)
- "is a stronger enterprise-grade option, but it appears better suited to larger or more advanced deployments than a typical mid-sized company" (Perplexity Sonar, paraphrase prompt, alternative)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.