# Microsoft Defender Vulnerability Management vs Vicarius vRx: which do AI models recommend for vuln management, October 2026

IT AI Recommendation Index, October 2026 Edition, Vulnerability management platforms. Zero of fourteen models named Microsoft Defender Vulnerability Management first on the direct prompt; two named Vicarius vRx. Page: https://it-ai-index.com/security/vulnerability-management-platforms/microsoft-defender-vulnerability-management-vs-vicarius-vrx/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Microsoft Defender Vulnerability Management | 4% | #6 of 10 | 13% | 23 | 10 of 14 |
| Vicarius vRx | 4% | #7 of 10 | 0% | 11 | 8 of 14 |

## The direct prompt, model by model

- Gemini 3.5 Flash: vicarius vrx first (first choices: SecPod SanerNow, Vicarius vRx) (alternatives: CrowdStrike Falcon Spotlight, Microsoft Defender Vulnerability Management, Nucleus Security, Rapid7 InsightVM)
- DeepSeek V4 Flash: vicarius vrx first (first choices: Rapid7 InsightVM, Vicarius vRx) (alternatives: Intruder, Tenable Vulnerability Management)
- Claude Haiku 4.5: neither first, one named (first choices: Rapid7 InsightVM) (alternatives: ManageEngine Vulnerability Manager Plus, Microsoft Defender for Cloud, Tenable Vulnerability Management, Vicarius vRx)
- Perplexity Sonar: neither first, one named (first choices: Rapid7 InsightVM) (alternatives: ManageEngine Vulnerability Manager Plus, Microsoft Defender Vulnerability Management, Microsoft Defender for Cloud, Qualys VMDR, Vicarius vRx)
- GLM 4.7 FlashX: neither first, one named (first choices: Qualys VMDR) (alternatives: ManageEngine Vulnerability Manager Plus, Microsoft Defender Vulnerability Management, Tenable Vulnerability Management)
- GPT-5.4 mini: neither named (first choices: Rapid7 InsightVM) (alternatives: Qualys VMDR, Tenable Vulnerability Management)
- Grok 4.1 Fast: neither named (first choices: Rapid7 InsightVM) (alternatives: Intruder, ManageEngine Vulnerability Manager Plus, Qualys VMDR, Tenable Vulnerability Management)
- Mistral Small: neither named (first choices: Rapid7 InsightVM) (alternatives: Intruder, ManageEngine Vulnerability Manager Plus, SureCloud)
- Llama 4 Maverick: neither named (first choices: Intruder) (alternatives: ManageEngine Vulnerability Manager Plus, Rapid7's Insight platform)
- Qwen 3.7 Flash: neither named (first choices: Rapid7 InsightVM) (alternatives: Qualys VMDR, Tenable Vulnerability Management)
- Kimi K2: neither named (first choices: Intruder, Rapid7 InsightVM) (alternatives: Qualys VMDR)
- MiniMax M2.5: neither named (first choices: Rapid7 InsightVM) (alternatives: Intruder, Tenable One)
- GPT-6 Luna: neither named (first choices: Tenable Vulnerability Management) (alternatives: Qualys VMDR, Rapid7 InsightVM)
- Muse Glimmer 30B: neither named (first choices: Rapid7 InsightVM) (alternatives: Intruder, ManageEngine Vulnerability Manager Plus)

## What the models said about Microsoft Defender Vulnerability Management

- "Limitations: Feature depth drops outside Windows ecosystem; limited Linux/macOS capabilities" (Kimi K2, comparative prompt, soft negative)
- "they should not be your *only* vulnerability management platform" (Gemini 3.5 Flash, negative prompt, soft negative)
- "Multi-tenant features are disappointing" (DeepSeek V4 Flash, negative prompt, soft negative)
- "for a tight budget, I'd start with Microsoft Defender Vulnerability Management if you already use Microsoft 365 or Defender" (GPT-6 Luna, budget prompt, first choice)
- "Microsoft Defender Vulnerability Management (free trial / included...) for risk‑based prioritization and remediation" (GLM 4.7 FlashX, budget prompt, first choice)
- "Microsoft-heavy environment: Evaluate Microsoft Defender Vulnerability Management first if you already use Microsoft Defender for Endpoint P2" (GPT-6 Luna, paraphrase prompt, alternative)

## What the models said about Vicarius vRx

- "vRx is highly regarded in the mid-market space. It uses a single agent to perform vulnerability scanning, risk prioritization, and automated patching" (Gemini 3.5 Flash, direct prompt, first choice)
- "For most mid-market B2B companies, Rapid7 InsightVM or Vicarius vRx are the strongest overall picks." (DeepSeek V4 Flash, direct prompt, first choice)
- "described as the strongest fit because of its patchless protection and lower operational overhead" (Perplexity Sonar, direct 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.