KeycloakvsSupabase Auth
How 10 AI models weigh Keycloak against Supabase Auth on the 1 buying question where both came up.
- Keycloak
- 63%of answers named it
- Supabase Auth
- 51%of answers named it
- Placed higher
- 7–19times Keycloak vs Supabase Auth, over 26 model rankings that listed either
- Models leaning
- 1–8toward Keycloak vs Supabase Auth; 1 even
Which models prefer which
Share of each model's answers that named each product, and how often its ranking put one above the other (a product listed beats one left off) · On the 1 shared question, every wording
| Model | Keycloak | Supabase Auth | Placed higher | Leans |
|---|---|---|---|---|
| Claude Haiku 5.5 | 83% | 42% | 1–1 | Even |
| GPT-6 Luna | 58% | 50% | 0–2 | Supabase Auth |
| Gemini 4 Argon | 75% | 75% | 1–3 | Supabase Auth |
| Qwen 3.8 Flash | 100% | 50% | 3–1 | Keycloak |
| DeepSeek V4 Pro | 17% | 42% | 1–2 | Supabase Auth |
| GLM-5.3 | 33% | 50% | 0–2 | Supabase Auth |
| Kimi K3 | 92% | 50% | 1–2 | Supabase Auth |
| MiniMax M3 | 50% | 50% | 0–2 | Supabase Auth |
| Mistral Large 4 | 58% | 50% | 0–2 | Supabase Auth |
| Nemotron 3 Ultra | 60% | 50% | 0–2 | Supabase Auth |
What the models say about Keycloak
One reason per model, from the shared questions
- Claude Haiku 5.5
Free open-source identity server, powerful but requires self-management.
- GPT-6 Luna
Powerful self-hosted open-source identity platform with extensive customization.
- Gemini 4 Argon
The most powerful self-hosted, open-source identity and access management solution available.
- Qwen 3.8 Flash
Top self-hosted open-source option with full OIDC/SAML.
- GLM-5.3
Free, self-hosted open-source IAM supporting OIDC/SAML at scale.
- Kimi K3
Free open-source, self-hosted, full OIDC/SAML with no vendor lock-in.
- MiniMax M3
Powerful self-hosted, open-source IAM for full control.
- Mistral Large 4
Free open-source option with full control, ideal for self-hosted and regulated environments.
- Nemotron 3 Ultra
Mature open-source IAM, widely deployed in enterprises
What the models say about Supabase Auth
One reason per model, from the shared questions
- Claude Haiku 5.5
Simple built-in authentication for apps already using Supabase.
- GPT-6 Luna
Open-source-friendly authentication that integrates naturally with Supabase databases and APIs.
- Gemini 4 Argon
Best-in-class open-source option that integrates directly with PostgreSQL row-level security.
- Qwen 3.8 Flash
Free generous tier, JWT-based, great for indie and startups.
- DeepSeek V4 Pro
Open-source Postgres-native auth with Row Level Security, great free tier.
- GLM-5.3
Open-source, Postgres-integrated auth with generous free tier.
- Kimi K3
Open-source, Postgres-native, simple email/social logins built-in.
- MiniMax M3
Open-source, Postgres-integrated auth with row-level security.
- Mistral Large 4
Open-source, Postgres-native, ideal for full-stack indie hackers.
- Nemotron 3 Ultra
Open-source alternative with PostgreSQL backend integration
Tracked since October 25, 2026. Each time the panel answers these questions again, both shares are added here.
Question by question
Share of all answers that named each, every wording pooled, with its place among every product named · Both-named questions first
| Question | Keycloak | Supabase Auth |
|---|---|---|
| Best authentication services for web apps | 63% #5 | 51% #8 |