# SentinelOne Singularity vs Stellar Cyber Open XDR: which do AI models recommend for XDR, October 2026

IT AI Recommendation Index, October 2026 Edition, Extended detection and response. One of fourteen models named SentinelOne Singularity first on the direct prompt; two named Stellar Cyber Open XDR. Page: https://it-ai-index.com/security/extended-detection-and-response/sentinelone-singularity-vs-stellar-cyber-open-xdr/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| SentinelOne Singularity | 8% | #4 of 10 | 10% | 51 | 14 of 14 |
| Stellar Cyber Open XDR | 4% | #5 of 10 | 0% | 13 | 8 of 14 |

## The direct prompt, model by model

- Kimi K2: sentinelone singularity first (first choices: SentinelOne Singularity, Sophos Intercept X) (alternatives: Microsoft Defender for Endpoint)
- Llama 4 Maverick: stellar cyber open xdr first (first choices: Sophos Intercept X, Stellar Cyber Open XDR) (alternatives: Microsoft Defender XDR)
- Muse Glimmer 30B: stellar cyber open xdr first (first choices: Sophos Intercept X, Stellar Cyber Open XDR) (alternatives: Bitdefender GravityZone XDR, Microsoft Defender XDR, Ontinue)
- Claude Haiku 4.5: neither first, one named (first choices: Sophos Intercept X) (alternatives: Microsoft Defender XDR, Rapid7 InsightIDR, SentinelOne Singularity)
- Gemini 3.5 Flash: neither first, one named (first choices: Sophos Intercept X, Sophos MDR) (alternatives: Cynet 360 Auto XDR, Microsoft Defender for Business / Defender XDR, SentinelOne Singularity, Stellar Cyber Open XDR)
- Perplexity Sonar: neither first, one named (first choices: Sophos Intercept X) (alternatives: SentinelOne Singularity, Stellar Cyber Open XDR)
- Grok 4.1 Fast: neither first, one named (first choices: Microsoft Defender XDR) (alternatives: CrowdStrike Falcon Insight XDR, SentinelOne Singularity, Sophos Intercept X)
- Mistral Small: neither first, one named (first choices: Sophos Intercept X) (alternatives: Stellar Cyber Open XDR)
- DeepSeek V4 Flash: neither first, one named (first choices: Sophos Intercept X) (alternatives: CrowdStrike Falcon Insight XDR, Microsoft Defender XDR, SentinelOne Singularity, Stellar Cyber Open XDR)
- Qwen 3.7 Flash: neither first, one named (first choices: Sophos Intercept X) (alternatives: Microsoft Defender XDR, SentinelOne Singularity)
- GLM 4.7 FlashX: neither first, one named (first choices: Microsoft Defender XDR) (alternatives: CrowdStrike Falcon Insight XDR, Palo Alto Networks Cortex XDR, SentinelOne Singularity, Sophos Intercept X)
- GPT-5.4 mini: neither named (first choices: CrowdStrike Falcon Insight XDR, Microsoft Defender XDR) (alternatives: Palo Alto Networks Cortex XDR)
- MiniMax M2.5: neither named (first choices: Microsoft Defender XDR) (alternatives: CrowdStrike Falcon Insight XDR, Sophos Intercept X)
- GPT-6 Luna: neither named (first choices: Microsoft Defender XDR) (alternatives: CrowdStrike Falcon Insight XDR, Palo Alto Networks Cortex XDR)

## What the models said about SentinelOne Singularity

- "overly aggressive blocking of legitimate tools... agent duplication issues have been reported in the management console during large-scale deployments" (Claude Haiku 4.5, negative prompt, soft negative)

## What the models said about Stellar Cyber Open XDR

- "Stellar Cyber Open XDR is repeatedly highlighted for mid-market teams needing enterprise capabilities without vendor lock-in" (Muse Glimmer 30B, direct prompt, first choice)
- "such as Sophos Intercept X or Stellar Cyber Open XDR. These platforms are designed for mid-market teams" (Llama 4 Maverick, direct prompt, first choice)

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.