IT AI Index

Index › Vendors › Nucleus Security · September 2026 Edition

1 category · Named, not ranked

Nucleus Security

4Judge labels

1First choices

0Negative labels

1 of 12Models named it

1Category

September 2026 Edition. Every number here is derived from the raw labels under vendor table vv2026-09.2, every buyer segment counted.

Standing

1 label, too few to rank

A product needs 10 labels in a category before a share or quadrant is stated. Nucleus Security was named 1 time in Vuln management, where Rapid7 InsightVM led with 45%. The labels and the evidence are below, counted exactly.

By buyer segmentRead the same way at every buyer size.

Small businessnot named

No model named it for this buyer.

Mid-market44 of 80

under the label threshold

Enterprise10 of 83

under the label threshold

In vuln management · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named Nucleus Security for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant
Vulnerability management platforms	Security operations	0%	44 of 80	0%	1	under 10 labels · led by Rapid7 InsightVM at 45%

Movement

This is the first edition on this tier, so no move can be computed for Nucleus Security yet. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated Nucleus Security across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.

Model	Alternative	Labels
Claude Haiku 4.5	0	0
GPT-5.4 mini	0	0
Gemini 3.5 Flash	1	1
Perplexity Sonar	0	0
Grok 4.1 Fast	0	0
Mistral Small	0	0
DeepSeek V4 Flash	0	0
Llama 4 Maverick	0	0
Qwen 3.7 Flash	0	0
Kimi K2	0	0
GLM 4.7 FlashX	0	0
MiniMax M2.5	0	0

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct1 labelNone

Paraphrase0 labelsNone

Comparative2 labelsNone

Budget-constrained1 label1

Scale-constrained0 labelsNone

Negative0 labelsNone

First choiceAlternativeMentionNegative4 labels in all, every segment counted; 1 of the 1 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Choose Nucleus or Brinqa if you already own multiple scanners” Gemini 3.5 Flash · Vuln management · comparative prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

No model argued against it.

Named alongside

The products named in the same answers as Nucleus Security, over the 4 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Nucleus Security was named but was not.

ProductSame answerTook the first choice insteadHead to head

Brinqa4 of 40Not in the top three

Microsoft Defender Vulnerability Management4 of 40Not in the top three

Tenable3 of 43Not in the top three

Qualys3 of 42Not in the top three

Orca Security3 of 40Not in the top three

Snyk3 of 40Not in the top three

Wiz3 of 40Not in the top three

CrowdStrike2 of 40Not in the top three

CrowdStrike Falcon Exposure Management2 of 40Not in the top three

Rapid72 of 40Not in the top three

A head-to-head page exists where both products are in a category's top three. The other rows are the same fact without a page behind them, so they link to the product instead.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Nucleus Security's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Nucleus Security, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at nucleussec.com is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.