Every category where a model named OpenCTI 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
Threat intelligence platforms	Security operations	6%	5 of 128	9%	23	accepted challenger

Movement

This is the first edition on this tier, so no move can be computed for OpenCTI 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 OpenCTI across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.

Model	First choice	Alternative	Mention	Negative	Labels
Claude Haiku 4.5	0	1	0	0	1
GPT-5.4 mini	0	2	0	0	2
Gemini 3.5 Flash	1	3	1	1	6
Perplexity Sonar	0	0	1	0	1
Grok 4.1 Fast	0	1	0	0	1
Mistral Small	0	0	0	0	0
DeepSeek V4 Flash	1	2	1	1	5
Llama 4 Maverick	0	0	0	0	0
Qwen 3.7 Flash	0	1	1	0	2
Kimi K2	1	2	0	0	3
GLM 4.7 FlashX	0	1	0	0	1
MiniMax M2.5	0	1	0	0	1

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

Direct3 labelsNone

Paraphrase6 labelsNone

Comparative13 labels2not counted in share

Budget-constrained15 labels5

Scale-constrained4 labels1

Negative10 labelsNone

First choiceAlternativeMentionNegative51 labels in all, every segment counted; 6 of the 8 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.

“If you have an absolute $0 software budget but have some engineering time: Spin up a virtual machine and install OpenCTI.” Gemini 3.5 Flash · Threat intel · budget prompt · first choice

“OpenCTI (Community Edition) is widely regarded as the best free TIP in 2026 for a budget-constrained company” DeepSeek V4 Flash · Threat intel · budget prompt · first choice

“Bottom line: If you have technical staff available, start with OpenCTI Community Edition” Kimi K2 · Threat intel · budget prompt · first choice

“open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables” Claude Haiku 4.5 · Threat intel · budget 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.

“Platforms built on open-source frameworks (e.g., MISP, OpenCTI) are free, but they are not turnkey solutions” DeepSeek V4 Flash · Threat intel · negative prompt · soft negative

“These platforms require significant engineering resources to maintain.” Gemini 3.5 Flash · Threat intel · negative prompt · soft negative

Named alongside

The products named in the same answers as OpenCTI, over the 50 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and OpenCTI was named but was not.

ProductSame answerTook the first choice insteadHead to head

MISP38 of 507Not in the top three

Recorded Future36 of 506Not in the top three

ThreatConnect29 of 504Not in the top three

Anomali14 of 500Not in the top three

Anomali ThreatStream12 of 501Not in the top three

AlienVault OTX11 of 502Not in the top three

Abuse.ch11 of 500Not in the top three

GreyNoise11 of 500Not in the top three

NordStellar9 of 505Not in the top three

Mandiant9 of 500Not 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.

What carried it into the answer

The sites and pages cited by the answers that named OpenCTI. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 32 of the 50 answers that named OpenCTI and are not a share of its labels.

Domains cited

esecurityplanet.com19

upguard.com19

analyticsinsight.net16

b2breviews.com15

cyware.com14

learn.g2.com13

cipherssecurity.com11

sourceforge.net11

vectra.ai11

defend.network10

139 of the 139 domain citations in answers naming OpenCTI came from somebody else's page.

Pages cited

upguard.com/blog/best-threat-intelligence-platforms-and-vendors19

esecurityplanet.com/products/threat-intelligence-platforms18

b2breviews.com/threat-intelligence-platforms15

learn.g2.com/best-threat-intelligence-tools13

analyticsinsight.net/cybersecurity/best-threat-intelligence-platforms11

cipherssecurity.com/best-threat-intelligence-platforms-202611

vectra.ai/topics/threat-intelligence-tools11

analyticsinsight.net/cybersecurity/10-best-threat-intelligence-platforms-in-20269

Pages are listed as the models cited them.

Names read as OpenCTI

What the judge wrote, as written, with how often. The vendor table decides that these count as OpenCTI; a claim can dispute any of them.

OpenCTI (Open Cyber Threat Intelligence) 2OpenCTI (Filigran) 1OpenCTI (Open Cyber Threat Intelligence Platform) 1OpenCTI (by Filigran) 1OpenCTI Enterprise 1

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 OpenCTI'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 OpenCTI, 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 opencti.io 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.