PostgreSQLvsSupabase
How 10 AI models weigh PostgreSQL against Supabase on the 1 buying question where both came up.
- PostgreSQL
- 83%of answers named it
- Supabase
- 80%of answers named it
- Placed higher
- 34–6times PostgreSQL vs Supabase, over 40 model rankings that listed either
- Models leaning
- 10–0toward PostgreSQL vs Supabase
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 | PostgreSQL | Supabase | Placed higher | Leans |
|---|---|---|---|---|
| Claude Haiku 5.5 | 75% | 42% | 3–1 | PostgreSQL |
| GPT-6 Luna | 75% | 100% | 3–1 | PostgreSQL |
| Gemini 4 Argon | 75% | 100% | 3–1 | PostgreSQL |
| Qwen 3.8 Flash | 75% | 83% | 3–1 | PostgreSQL |
| DeepSeek V4.1 Flash | 100% | 92% | 4–0 | PostgreSQL |
| GLM-5.3 | 75% | 92% | 3–1 | PostgreSQL |
| Kimi K3 | 92% | 33% | 4–0 | PostgreSQL |
| MiniMax M3 | 100% | 75% | 4–0 | PostgreSQL |
| Mistral Large 4 | 75% | 92% | 3–1 | PostgreSQL |
| Nemotron 3.5 Super VL | 83% | 92% | 4–0 | PostgreSQL |
What the models say about PostgreSQL
One reason per model, from the shared questions
- Claude Haiku 5.5
Robust, standards-compliant, feature-rich relational database with excellent ecosystem and extensibility.
- GPT-6 Luna
Best default for most web apps: reliable, feature-rich, and supported almost everywhere.
- Gemini 4 Argon
Unmatched versatility, reliability, and extension ecosystem make it the ultimate default choice.
- Qwen 3.8 Flash
Default choice: reliable, free, supports JSON, vector search, huge ecosystem.
- DeepSeek V4.1 Flash
Default safe pick: relational, JSONB, extensions, no license cost, huge ecosystem.
- GLM-5.3
Feature-rich, reliable relational standard; JSON support fits most web app needs.
- Kimi K3
Versatile open-source default with relational power, JSON support, and extensions.
- MiniMax M3
Robust, feature-rich, and the default choice for modern web apps.
- Mistral Large 4
Best open-source relational database: powerful, extensible, ACID-compliant, free.
- Nemotron 3.5 Super VL
Feature-rich, extensible open source RDBMS ideal for most web apps.
What the models say about Supabase
One reason per model, from the shared questions
- Claude Haiku 5.5
Postgres-based backend with auth and APIs, speeding up web app development.
- GPT-6 Luna
Managed PostgreSQL plus authentication, APIs, and realtime features speeds up product development.
- Gemini 4 Argon
Combines PostgreSQL power with built-in authentication, APIs, and real-time features for rapid development.
- Qwen 3.8 Flash
Postgres plus auth/storage/realtime; fastest path to a web backend.
- DeepSeek V4.1 Flash
Managed Postgres with auth, APIs, and realtime; quickest full-stack start.
- GLM-5.3
Postgres-as-a-service with auth and APIs for fast web app launches.
- Kimi K3
Postgres plus auth, storage, and realtime at unbeatable value
- MiniMax M3
Managed Postgres with auth, storage, and realtime out of the box.
- Mistral Large 4
Postgres-powered backend-as-a-service with auth, realtime, and storage built-in.
- Nemotron 3.5 Super VL
Firebase alternative built on PostgreSQL with auth and realtime out of the box.
Over time
Share of answers that named each, on the questions where both came up, each time the panel answered
| Panel run | PostgreSQL | Supabase |
|---|---|---|
| October 26, 2026 | 83% | 80% |
| October 25, 2026 | 77% | 76% |
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 | PostgreSQL | Supabase |
|---|---|---|
| Best databases for web apps | 83% #3 | 80% #4 |
| Best realtime tools for web apps | · | 57% #7 |
| Best cloud platforms for startups | · | 26% #11 |
| Best authentication services for web apps | · | 23% #12 |
| Best cloud data warehouses | 2% #23 | · |