Every category where a model named American Express 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
Corporate cards	Spend and procurement	0%	13 of 63	25%	12	criticized challenger

Movement

This is the first edition on this tier, so no move can be computed for American Express 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 American Express 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	1	0	1
GPT-5.4 mini	0	0	0	0
Gemini 3.5 Flash	1	0	2	3
Perplexity Sonar	0	0	0	0
Grok 4.1 Fast	0	0	0	0
Mistral Small	0	1	0	1
DeepSeek V4 Flash	0	2	0	2
Llama 4 Maverick	0	0	0	0
Qwen 3.7 Flash	2	1	0	3
Kimi K2	0	0	0	0
GLM 4.7 FlashX	0	0	1	1
MiniMax M2.5	0	1	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

Direct8 labels2

Paraphrase3 labelsNone

Comparative6 labelsNone

Budget-constrained4 labelsNone

Scale-constrained13 labelsNone

Negative9 labels1not counted in share

First choiceAlternativeMentionNegative43 labels in all, every segment counted; 2 of the 3 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.

“look for cards from established networks (Amex, Chase, Capital One, Citi) that offer a clear balance” Qwen 3.7 Flash · Corporate cards · negative prompt · alternative

“look at traditional commercial cards (Amex, Chase, J.P. Morgan)” Gemini 3.5 Flash · Corporate cards · scale prompt · alternative

“American Express Business (Best Perks & Service)” Qwen 3.7 Flash · Corporate cards · 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.

“Amex offers premium travel rewards and vendor acceptance, but its software and receipt-matching capabilities lag behind dedicated spend-management platforms” Gemini 3.5 Flash · Corporate cards · paraphrase prompt · soft negative

“cards from traditional banks (like Chase, Capital One, or American Express) require the business owner to personally guarantee the debt” Gemini 3.5 Flash · Corporate cards · negative prompt · soft negative

“Traditional Bank-Backed Cards With a Personal Guarantee (e.g., Chase Ink, Amex Business, Capital One Spark)- Why to be cautious:” GLM 4.7 FlashX · Corporate cards · negative prompt · soft negative

Named alongside

The products named in the same answers as American Express, over the 43 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and American Express was named but was not.

ProductSame answerTook the first choice insteadHead to head

Brex37 of 432Not in the top three

Ramp36 of 4318Not in the top three

BILL Spend & Expense26 of 430Not in the top three

Chase18 of 430Not in the top three

Airwallex12 of 431Not in the top three

Citi8 of 431Not in the top three

Rippling Spend8 of 430Not in the top three

J.P. Morgan7 of 430Not in the top three

Rho6 of 430Not in the top three

Capital One5 of 430Not 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 American Express. 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 23 of the 43 answers that named American Express and are not a share of its labels.

Domains cited

forbes.com15

nerdwallet.com14

rippling.com14

brex.com9

americanexpress.comYour site8

corpay.com8

ramp.com8

use.expensify.com8

airwallex.com7

payhawk.com6

Eighty-nine of the ninety-seven domain citations in answers naming American Express came from somebody else's page.

Pages cited

forbes.com/advisor/credit-cards/best-corporate-credit-cards13

nerdwallet.com/business/credit-cards/best/corporate11

use.expensify.com/resource-center/guides/evaluating-corporate-card-programs8

airwallex.com/en-us/blog/compare-corporate-business-cards7

rippling.com/blog/best-commercial-credit-cards-business7

work-management.org/accounting/best-corporate-cards6

cpaforge.com/best/best-corporate-cards-small-business5

kurums.com/best-corporate-cards-2026-comparison5

Pages are listed as the models cited them.

Names read as American Express

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

Amex 6American Express Business 2Amex Business 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 American Express'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 American Express, 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 americanexpress.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.