GTM AI Index

Index › Vendors › Index Exchange · September 2026 Edition

1 category · Named, not ranked

Index Exchange

6Judge labels

0First choices

4Negative 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

3 labels, too few to rank

A product needs 10 labels in a category before a share or quadrant is stated. Index Exchange was named 3 times in Programmatic, where StackAdapt led with 61%. 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-market52 of 96

under the label threshold

Enterprise98 of 102

under the label threshold

In programmatic · 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 Index Exchange 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
Programmatic and display advertising	Marketing	0%	52 of 96	33%	3	under 10 labels · led by StackAdapt at 61%

Movement

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

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

Direct0 labelsNone

Paraphrase0 labelsNone

Comparative1 labelNone

Budget-constrained0 labelsNone

Scale-constrained0 labelsNone

Negative5 labelsNone

First choiceAlternativeMentionNegative6 labels in all, every segment counted; 0 of the 0 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.

“Index Exchange (strong verification)” Mistral Small · Programmatic · negative 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.

“buying from an SSP like IX requires incredibly strict blacklisting rules; otherwise, your premium brand may end up next to spam” Qwen 3.7 Flash · Programmatic · negative prompt · soft negative

Named alongside

The products named in the same answers as Index Exchange, over the 6 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Index Exchange was named but was not.

ProductSame answerTook the first choice insteadHead to head

Magnite4 of 60Not in the top three

OpenX4 of 60Not in the top three

The Trade Desk3 of 62Not in the top three

Google Display & Video 3603 of 61Not in the top three

Criteo3 of 60Not in the top three

Microsoft Xandr3 of 60Not in the top three

Nexxen3 of 60Not in the top three

PubMatic3 of 60Not in the top three

Teads3 of 60Not in the top three

TripleLift3 of 60Not 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.

Names read as Index Exchange

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

Index Exchange (IX) 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 Index Exchange'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 Index Exchange, 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 indexexchange.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.