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Index › Security operations › XDR › SentinelOne Singularity vs Stellar Cyber Open XDR
Extended detection and response · October 2026 Edition

SentinelOne Singularity vs Stellar Cyber Open XDR

One of fourteen models named SentinelOne Singularity first on the direct prompt; two named Stellar Cyber Open XDR. SentinelOne Singularity was named by fourteen of the fourteen models and Stellar Cyber Open XDR by eight and SentinelOne Singularity carries 51 labels and Stellar Cyber Open XDR 13, so the shares are not directly comparable.

SentinelOne Singularity

accepted challenger

Named in fourteen categories this edition.

Stellar Cyber Open XDR

accepted challenger

Named in three categories this edition.

First-choice share8%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate10%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#5A position in a field of 10; printed, not drawn.
Labels5113A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, SentinelOne Singularity reading right to left. Rank and label count are printed, not drawn.Sophos Intercept X was named alongside these two in twelve of the fourteen direct answers. Microsoft Defender XDR vs SentinelOne Singularity · Microsoft Defender XDR vs Stellar Cyber Open XDR · Sophos Intercept X vs SentinelOne Singularity

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; every quote names the model and the prompt it came from. Both figures come from the extended detection and response page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
SentinelOne SingularityFirst choices, of fourteen modelsStellar Cyber Open XDR
Direct12
Paraphrase30
Comparative00
Budget-constrained00
Scale-constrained00
Negative105 against SentinelOne Singularity
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where SentinelOne Singularity and Stellar Cyber Open XDR stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
SentinelOne Singularity Stellar Cyber Open XDR first choice named as an alternative argued againstblank: not namedEach cell is one answer, SentinelOne Singularity on the left and Stellar Cyber Open XDR on the right.

The direct prompt

The plain question, one answer per model, grouped by where SentinelOne Singularity and Stellar Cyber Open XDR stood in it.

SentinelOne Singularity first, Stellar Cyber Open XDR not the choice

1 of 14 modelsStellar Cyber Open XDR was named in the answer but not as the choice, or not at all.
Kimi K2SentinelOne Singularity, Sophos Intercept X alternatives: Microsoft Defender for Endpoint

Stellar Cyber Open XDR first, SentinelOne Singularity not the choice

2 of 14 modelsSentinelOne Singularity was named in the answer but not as the choice, or not at all.
Llama 4 MaverickSophos Intercept X, Stellar Cyber Open XDR alternatives: Microsoft Defender XDR
Muse Glimmer 30BSophos Intercept X, Stellar Cyber Open XDR alternatives: Bitdefender GravityZone XDR, Microsoft Defender XDR, Ontinue

Neither was the first choice, one was named

8 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5Sophos Intercept X alternatives: Microsoft Defender XDR, Rapid7 InsightIDR, SentinelOne Singularity
Gemini 3.5 FlashSophos Intercept X, Sophos MDR alternatives: Cynet 360 Auto XDR, Microsoft Defender for Business / Defender XDR, SentinelOne Singularity, Stellar Cyber Open XDR
Perplexity SonarSophos Intercept X alternatives: SentinelOne Singularity, Stellar Cyber Open XDR
Grok 4.1 FastMicrosoft Defender XDR alternatives: CrowdStrike Falcon Insight XDR, SentinelOne Singularity, Sophos Intercept X
Mistral SmallSophos Intercept X alternatives: Stellar Cyber Open XDR
DeepSeek V4 FlashSophos Intercept X alternatives: CrowdStrike Falcon Insight XDR, Microsoft Defender XDR, SentinelOne Singularity, Stellar Cyber Open XDR
Qwen 3.7 FlashSophos Intercept X alternatives: Microsoft Defender XDR, SentinelOne Singularity
GLM 4.7 FlashXMicrosoft Defender XDR alternatives: CrowdStrike Falcon Insight XDR, Palo Alto Networks Cortex XDR, SentinelOne Singularity, Sophos Intercept X

Neither was named

3 of 14 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniCrowdStrike Falcon Insight XDR, Microsoft Defender XDR alternatives: Palo Alto Networks Cortex XDR
MiniMax M2.5Microsoft Defender XDR alternatives: CrowdStrike Falcon Insight XDR, Sophos Intercept X
GPT-6 LunaMicrosoft Defender XDR alternatives: CrowdStrike Falcon Insight XDR, Palo Alto Networks Cortex XDR

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
SentinelOne Singularity leads by seven points.
SentinelOne Singularity7%#5 of 11
Stellar Cyber Open XDR0%#– of 11
The full small business standing →
Mid-marketThe figures above
SentinelOne Singularity leads by four points.
SentinelOne Singularity8%#4 of 10
Stellar Cyber Open XDR4%#5 of 10
The full mid-market standing →
Enterprise
The order flips: Stellar Cyber Open XDR leads at enterprise.
Stellar Cyber Open XDR6%#3 of 8
SentinelOne Singularity2%#5 of 8
The full enterprise standing →

What the models said about SentinelOne Singularity

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. One of one in this category shown.

“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

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.

“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
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.