# Auth0 vs LoginRadius: which do AI models recommend for CIAM, October 2026

IT AI Recommendation Index, October 2026 Edition, Customer identity and access management. Five of fourteen models named Auth0 first on the direct prompt; four named LoginRadius. Page: https://it-ai-index.com/identity/customer-identity-and-access-management/auth0-vs-loginradius/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Auth0 | 18% | #2 of 14 | 22% | 60 | 14 of 14 |
| LoginRadius | 12% | #4 of 14 | 5% | 22 | 10 of 14 |

## The direct prompt, model by model

- Grok 4.1 Fast: auth0 first (first choices: Auth0) (alternatives: Clerk, Frontegg, FusionAuth, Microsoft Entra External ID, Stytch, WorkOS)
- DeepSeek V4 Flash: auth0 first (first choices: Auth0, Frontegg) (alternatives: Clerk, Microsoft Entra External ID, Stytch)
- Qwen 3.7 Flash: auth0 first (first choices: Auth0, Clerk) (alternatives: Microsoft Entra ID)
- GLM 4.7 FlashX: auth0 first (first choices: Auth0) (alternatives: Clerk, Descope, LoginRadius, Microsoft Entra External ID)
- MiniMax M2.5: auth0 first (first choices: Auth0, Clerk) (alternatives: Descope, LoginRadius)
- Perplexity Sonar: loginradius first (first choices: LoginRadius) (alternatives: Clerk, Frontegg, Microsoft Entra External ID)
- Mistral Small: loginradius first (first choices: LoginRadius) (alternatives: Thales OneWelcome)
- Llama 4 Maverick: loginradius first (first choices: LoginRadius) (alternatives: Clerk, OneWelcome Identity Platform)
- Muse Glimmer 30B: loginradius first (first choices: Frontegg, LoginRadius) (alternatives: Auth0, Ping Identity)
- GPT-6 Luna: neither first, one named (first choices: WorkOS AuthKit) (alternatives: Auth0, Microsoft Entra External ID, Stytch)
- Claude Haiku 4.5: neither named (first choices: Descope, Frontegg) (alternatives: OneWelcome Identity Platform, SSOJet, WorkOS)
- GPT-5.4 mini: neither named (first choices: Frontegg) (alternatives: Auth0/Okta Customer Identity Cloud, FusionAuth, Okta)
- Gemini 3.5 Flash: neither named (first choices: WorkOS) (alternatives: Clerk, Frontegg, Kinde)
- Kimi K2: neither named (first choices: Clerk, Frontegg) (alternatives: FusionAuth, WorkOS)

## What the models said about Auth0

- "Budget Trap to Avoid: Auth0 (Okta) ... it is not recommended for companies on a limited budget" (Gemini 3.5 Flash, budget prompt, hard negative)
- "The Catch: It can become exceptionally expensive. Because its pricing scales heavily on Monthly Active Users (MAUs), a growing customer base can lead to a highly ballooned bill." (Gemini 3.5 Flash, comparative prompt, soft negative)
- "Auth0 has issued advisories about misconfigurations, account creation fraud, credential attacks, MFA bypass, and session/token hijacking." (GLM 4.7 FlashX, negative prompt, soft negative)
- "Frontegg (if multi-tenant org management is a priority) or Auth0 (if you want the most mature, proven platform) are the strongest overall picks" (DeepSeek V4 Flash, direct prompt, first choice)
- "Medium (Standard Devs) | Fully Managed Cloud<br>Best balance of speed, security, and ease of use. | Auth0 (Okta), AWS Cognito, Firebase Auth" (Qwen 3.7 Flash, scale prompt, first choice)
- "Choose Auth0 if you want to get a product to market quickly and value developer flexibility over on-prem control." (GLM 4.7 FlashX, comparative prompt, first choice)

## What the models said about LoginRadius

- "Organizations give up some features and control ... there aren't many connectors for third-party fraud prevention features" (Claude Haiku 4.5, negative prompt, soft negative)
- "Prioritize platforms with strong mid-market fit like LoginRadius (simplicity) or FusionAuth (cost-effective self-hosting)." (Grok 4.1 Fast, scale prompt, first choice)
- "LoginRadius is the managed-simplicity pick for mid-market teams that want CIAM without heavy engineering." (Muse Glimmer 30B, direct prompt, first choice)
- "LoginRadius is frequently highlighted as the best customer identity platform for mid-market B2B companies" (Mistral Small, direct prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.