GTM AI Index

Index › Vendors › Stadium · September 2026 Edition

1 category · Named, not ranked

Stadium

7Judge labels

0First choices

6Negative labels

4 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

4 labels, too few to rank

A product needs 10 labels in a category before a share or quadrant is stated. Stadium was named 4 times in Direct mail, where Postalytics led with 54%. The labels and the evidence are below, counted exactly.

By buyer segmentRead the same way at every buyer size.

Small business50 of 57

under the label threshold

Mid-market58 of 58

under the label threshold

Enterprise39 of 52

under the label threshold

In direct mail · 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 Stadium 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
Print	Marketing	0%	58 of 58	100%	4	under 10 labels · led by Postalytics at 54%

Movement

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

Model	Negative	Labels
Claude Haiku 4.5	1	1
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	0	0
Llama 4 Maverick	0	0
Qwen 3.7 Flash	1	1
Kimi K2	0	0
GLM 4.7 FlashX	1	1
MiniMax M2.5	1	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

Direct0 labelsNone

Paraphrase0 labelsNone

Comparative0 labelsNone

Budget-constrained0 labelsNone

Scale-constrained0 labelsNone

Negative7 labels1not counted in share

First choiceAlternativeMentionNegative7 labels in all, every segment counted; 0 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.

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.

“Limited Customization: Restricted options for postcard designs” GLM 4.7 FlashX · Direct mail · negative prompt · hard negative

“Users report limited customization options for postcard designs, slower-than-expected delivery times... some users find the service expensive” Claude Haiku 4.5 · Direct mail · negative prompt · soft negative

“Limited customization... High costs for perceived low quality” MiniMax M2.5 · Direct mail · negative prompt · soft negative

“Stadium has received criticism for quality control issues” Qwen 3.7 Flash · Direct mail · negative prompt · soft negative

Named alongside

The products named in the same answers as Stadium, over the 7 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Stadium was named but was not.

ProductSame answerTook the first choice insteadHead to head

Lob6 of 70Not in the top three

PostGrid6 of 70Not in the top three

Postalytics5 of 71Not in the top three

Sendoso5 of 70Not in the top three

Postie4 of 70Not in the top three

Tremendous4 of 70Not in the top three

Reachdesk3 of 70Not in the top three

Click2Mail2 of 70Not in the top three

PFL2 of 70Not in the top three

Braze1 of 70Not 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 Stadium. 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 7 answers that named Stadium and are not a share of its labels.

Domains cited

apps.apple.com1

ca.trustpilot.com1

capterra.com1

cience.com1

help.zoho.com1

lob.com1

mailmodo.com1

postgrid.com1

quicksprout.com1

slashdot.org1

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

Pages cited

apps.apple.com/us/app/direct-mail/id5000403441

ca.trustpilot.com/review/directmailsystems.co.uk1

capterra.com/p/128355/Direct-Mail1

cience.com/blog/direct-mail-automation-software1

help.zoho.com/portal/en/kb/marketing-automation-2-0/deliverability-guide/reputation-manage1

lob.com/blog/choosing-a-reliable-direct-mail-platform-2025-guide1

lob.com/blog/direct-mail-compliance-that-holds-up-under-pressure1

lob.com/blog/top-challenges-plagued-your-direct-mail-in-20221

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 Stadium'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 Stadium, 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 stadium.co 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.