GTM AI Index

Index › Vendors › Stackby · September 2026 Edition

1 category · Named, not ranked

Stackby

8Judge labels

0First choices

0Negative labels

6 of 12Models named it

1Category

September 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-09-16.3, 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. Stackby was named 1 time in Content marketing, where HubSpot Content Hub led with 30%. The labels and the evidence are below, counted exactly.

By buyer segmentRead the same way at every buyer size.

Small business23 of 150

under the label threshold

Mid-market95 of 159

under the label threshold

Enterprisenot named

No model named it for this buyer.

In content marketing · 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 Stackby 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
Content marketing platforms	Marketing	0%	95 of 159	0%	1	under 10 labels · led by HubSpot Content Hub at 30%

Movement

This is the first edition on this tier, so no move can be computed for Stackby yet. The next is due October 1, 2026. 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 Stackby across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.

Model	Mention	Labels
Claude Haiku 4.5	0	0
GPT-5.4 mini	0	0
Gemini 3.5 Flash	0	0
Perplexity Sonar	0	0
Grok 4.1 Fast	0	0
Mistral Small	0	0
DeepSeek V4 Flash	1	1
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

Direct2 labelsNone

Paraphrase0 labelsNone

Comparative5 labels2not counted in share

Budget-constrained1 labelNone

Scale-constrained0 labelsNone

Negative0 labelsNone

First choiceAlternativeMentionNegative8 labels in all, every segment counted; 0 of the 2 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.

No positive label carried a quote.

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 Stackby, over the 8 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Stackby was named but was not.

ProductSame answerTook the first choice insteadHead to head

HubSpot Content Hub8 of 84Not in the top three

CoSchedule6 of 81Not in the top three

Buffer6 of 80Not in the top three

Semrush6 of 80Not in the top three

StoryChief4 of 81Not in the top three

Canva4 of 80Not in the top three

Jasper4 of 80Not in the top three

Notion4 of 80Not in the top three

Surfer SEO4 of 80Not in the top three

ChatGPT2 of 80Not 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 Stackby. 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 1 of the 8 answers that named Stackby and are not a share of its labels.

Domains cited

averi.ai1

blog.hubspot.com1

convertmate.io1

gartner.com1

guideflow.com1

influencermarketinghub.com1

omnibound.ai1

planable.io1

searchnstuff.co.uk1

socialbee.com1

Ten of the ten domain citations in answers naming Stackby came from somebody else's page.

Pages cited

averi.ai/how-to/12-best-content-marketing-tools-for-small-teams-in-20261

blog.hubspot.com/marketing/content-marketing-tools1

blog.hubspot.com/website/content-marketing-platform1

convertmate.io/best/best-content-marketing-tools-for-small-businesses1

gartner.com/reviews/market/content-marketing-platforms1

guideflow.com/blog/best-content-marketing-tools1

influencermarketinghub.com/content-marketing-platforms1

omnibound.ai/blog/content-marketing-tools1

Pages are listed as the models cited them.

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 Stackby'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 Stackby, 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 stackby.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.