Every category where a model named Clerk 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
Customer identity and access management	Identity and access	7%	4 of 74	10%	21	accepted challenger
Multi-factor authentication	Identity and access	0%	34 of 78	0%	1	under 10 labels · led by Cisco Duo at 42%
Workforce identity and SSO	Identity and access	0%	31 of 48	100%	1	under 10 labels · led by Microsoft Entra ID at 36%

Movement

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

Direct15 labels4

Paraphrase8 labels2

Comparative15 labels8not counted in share

Budget-constrained16 labels9

Scale-constrained11 labels2

Negative7 labels2not counted in share

First choiceAlternativeMentionNegative72 labels in all, every segment counted; 17 of the 27 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.

“Best pure customer identity option on a budget: Clerk for a fast developer experience and generous free tier.” GPT-5.4 mini · CIAM · budget prompt · first choice

“Start with Clerk if you want the easiest developer experience with generous free tier” MiniMax M2.5 · CIAM · budget prompt · first choice

“try Supabase or Clerk for speed” Grok 4.1 Fast · CIAM · budget prompt · first choice

“Start with Clerk or Auth0.” Qwen 3.7 Flash · CIAM · direct prompt · first choice

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.

“only if developer experience or enterprise-facing workflows matter enough to justify potentially higher cost or implementation overhead” Perplexity Sonar · CIAM · budget prompt · soft negative

“only if you are actually buying *embedded B2B SaaS identity infrastructure* for your product, not internal employee identity” Perplexity Sonar · Workforce identity · paraphrase prompt · soft negative

“fewer B2B‑specific admin features compared with Frontegg/WorkOS” GLM 4.7 FlashX · CIAM · paraphrase prompt · soft negative

Named alongside

The products named in the same answers as Clerk, over the 72 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Clerk was named but was not.

ProductSame answerTook the first choice insteadHead to head

Auth065 of 7211Not in the top three

WorkOS40 of 727Not in the top three

Stytch28 of 720Not in the top three

Descope26 of 722Not in the top three

Amazon Cognito26 of 721Not in the top three

Frontegg24 of 724Not in the top three

Firebase Authentication21 of 721Not in the top three

Supabase Auth19 of 721Not in the top three

Keycloak19 of 720Not in the top three

FusionAuth18 of 720Not 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 Clerk. 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 47 of the 72 answers that named Clerk and are not a share of its labels.

Domains cited

loginradius.com29

startwithidentity.com26

expertinsights.com25

worldmetrics.org23

clerk.comYour site22

securityboulevard.com21

workos.com20

descope.com19

guideflow.com17

idsync.com16

196 of the 218 domain citations in answers naming Clerk came from somebody else's page.

Pages cited

loginradius.com/blog/identity/top-ciam-for-small-and-medium-businesses24

expertinsights.com/identity-and-access-management/top-customer-identity-and-access-managem23

worldmetrics.org/best/customer-identity-management-software21

guideflow.com/blog/ciam-software17

descope.com/blog/post/ciam-solutions13

ibtimes.com/top-5-best-customer-identity-access-management-ciam-solutions-2026-380087812

workos.com/blog/top-ciam-providers-in-202612

startwithidentity.com/rankings/best-ciam-for-startups11

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 Clerk'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 Clerk, 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 clerk.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.