Every category where a model named Firebase Authentication 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	2%	12 of 74	33%	9	under 10 labels · led by Auth0 at 22%

Movement

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

Direct1 labelNone

Paraphrase5 labelsNone

Comparative5 labelsNone

Budget-constrained9 labels2

Scale-constrained3 labelsNone

Negative9 labels1not counted in share

First choiceAlternativeMentionNegative32 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.

“Building an MVP / Prototype | Firebase Auth (Cheapest/Easiest)” Qwen 3.7 Flash · CIAM · budget prompt · first choice

“Best for Google/mobile-first apps ... Cons: Limited passkeys/advanced CIAM” Grok 4.1 Fast · CIAM · budget prompt · alternative

“Best for Mobile/Google Ecosystem: Firebase Authentication” Kimi K2 · CIAM · budget prompt · alternative

“(Best for Google Ecosystem) - Free tier: 50,000 MAUs” MiniMax M2.5 · CIAM · budget 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.

“Unlike Firebase, which charges "per operation" (meaning a spike in read/write operations can trigger a surprise bill)” Gemini 3.5 Flash · CIAM · budget prompt · soft negative

“Cautiously use it only for basic consumer MVPs.” Gemini 3.5 Flash · CIAM · negative prompt · soft negative

“Firebase/Cognito criticized for vendor lock-in.” Grok 4.1 Fast · CIAM · negative prompt · soft negative

Named alongside

The products named in the same answers as Firebase Authentication, over the 32 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Firebase Authentication was named but was not.

ProductSame answerTook the first choice insteadHead to head

Auth029 of 324Not in the top three

Clerk21 of 3210Not in the top three

Amazon Cognito18 of 321Not in the top three

Keycloak17 of 320Not in the top three

WorkOS15 of 322Not in the top three

Stytch14 of 320Not in the top three

Microsoft Entra External ID13 of 320Not in the top three

Supabase Auth12 of 322Not in the top three

Descope11 of 323Not in the top three

Ping Identity9 of 321Not 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 Firebase Authentication. 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 18 of the 32 answers that named Firebase Authentication and are not a share of its labels.

Domains cited

loginradius.com16

descope.com12

expertinsights.com12

startwithidentity.com11

guideflow.com8

worldmetrics.org8

ibtimes.com7

clerk.com6

securityboulevard.com6

g2.com5

Ninety-one of the ninety-one domain citations in answers naming Firebase Authentication came from somebody else's page.

Pages cited

descope.com/blog/post/ciam-solutions12

expertinsights.com/identity-and-access-management/top-customer-identity-and-access-managem12

loginradius.com/blog/identity/top-ciam-for-small-and-medium-businesses9

guideflow.com/blog/ciam-software8

ibtimes.com/top-5-best-customer-identity-access-management-ciam-solutions-2026-38008787

worldmetrics.org/best/customer-identity-management-software7

loginradius.com/blog/identity/top-ciam-for-startups6

startwithidentity.com/rankings/best-ciam-for-startups5

Pages are listed as the models cited them.

Names read as Firebase Authentication

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

Firebase 3Firebase Authentication (Google) 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 Firebase Authentication'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 Firebase Authentication, 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 firebase.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.